{"product_id":"rfn-thunder-140-pro-140cc-pit-bike","title":"RFN Thunder140 Pro 140cc Pit Bike","description":"\u003cdiv style=\"background:#f8f8f8;padding:20px;border-radius:12px;margin-bottom:22px;border-left:6px solid #C8FF5F;\"\u003e\n  \u003ch2 style=\"margin-top:0;\"\u003eRFN Thunder 140 Pro 140cc Pit Bike – Quick Overview\u003c\/h2\u003e\n  \u003cp\u003e\u003cstrong\u003eBest for:\u003c\/strong\u003e experienced riders wanting serious off-road performance.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eEngine:\u003c\/strong\u003e genuine YX 140cc 4-stroke single-cylinder engine.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003ePower:\u003c\/strong\u003e 11.15bhp with 10.2Nm torque.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWheels:\u003c\/strong\u003e 17 inch front \/ 14 inch rear big wheel setup.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eWhy riders choose it:\u003c\/strong\u003e full manual control, big wheel stability, hydraulic brakes and high ground clearance.\u003c\/p\u003e\n  \u003cp style=\"margin-bottom:0;\"\u003e\u003cstrong\u003eOur view:\u003c\/strong\u003e the top RFN Thunder petrol pit bike for riders who want the biggest, most capable bike in the range.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"display:flex;gap:12px;flex-wrap:wrap;margin:24px 0;\"\u003e\n  \u003ca href=\"\/collections\/pit-bikes\" style=\"background:#C8FF5F;color:#000;padding:14px 22px;text-decoration:none;font-weight:bold;border-radius:8px;display:inline-block;\"\u003eShop All Pit Bikes\u003c\/a\u003e\n  \u003ca href=\"\/collections\/manual-pit-bikes\" style=\"background:#111;color:#fff;padding:14px 22px;text-decoration:none;font-weight:bold;border-radius:8px;display:inline-block;\"\u003eView Manual Pit Bikes\u003c\/a\u003e\n  \u003ca href=\"\/collections\/rfn-pit-bikes\" style=\"background:#f3f3f3;color:#000;padding:14px 22px;text-decoration:none;font-weight:bold;border-radius:8px;display:inline-block;\"\u003eView RFN Pit Bikes\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe RFN Thunder 140 Pro is the biggest petrol pit bike in the RFN Thunder range.\u003c\/strong\u003e Built with a genuine YX 140cc engine, full manual gearbox, 17\/14 big wheel setup and upgraded hydraulic brakes, it is made for riders who want more size, more power and more serious off-road capability.\u003c\/p\u003e\n\n\u003cp\u003eThis is not a beginner pit bike. The Thunder 140 Pro is designed for experienced riders who already understand clutch control and want a bike that can handle tracks, trails and motocross-style riding.\u003c\/p\u003e\n\n\u003cp\u003eWith an 84cm seat height, 32.5cm ground clearance and 80kg dry weight, it feels much closer to a compact motocross bike than a small junior pit bike.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003cdiv style=\"background:#111;color:#fff;padding:26px;border-radius:16px;margin:34px 0;\"\u003e\n  \u003ch2 style=\"margin-top:0;color:#fff;\"\u003eMy Take as a British MX Rider\u003c\/h2\u003e\n  \u003cp\u003eThe RFN Thunder 140 Pro is the one I’d look at if the rider wants the most serious bike in the Thunder petrol range.\u003c\/p\u003e\n  \u003cp\u003eThe 17\/14 wheel setup, 84cm seat height and YX 140cc engine give it a much bigger, more capable feel than smaller pit bikes.\u003c\/p\u003e\n  \u003cp style=\"margin-bottom:0;\"\u003e\u003cstrong style=\"color:#C8FF5F;\"\u003eIf the rider is confident with a manual clutch and wants the biggest RFN Thunder petrol bike, this is the one to go for.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#f5f5f5;padding:24px;border-radius:16px;margin:35px 0;\"\u003e\n  \u003ch2 style=\"margin-top:0;\"\u003eHelpful Pit Bike Buying Guides\u003c\/h2\u003e\n  \u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;\"\u003e\n    \u003ca href=\"\/pages\/best-pit-bike-for-beginners-uk\" style=\"background:#fff;padding:16px;border-radius:12px;text-decoration:none;color:#111;border:1px solid #e5e5e5;display:block;\"\u003e\u003cstrong\u003eBest Pit Bike for Beginners\u003c\/strong\u003e\u003cbr\u003eFind the right first petrol pit bike.\u003c\/a\u003e\n    \u003ca href=\"\/pages\/pit-bikes-for-8-10-year-olds-uk\" style=\"background:#fff;padding:16px;border-radius:12px;text-decoration:none;color:#111;border:1px solid #e5e5e5;display:block;\"\u003e\u003cstrong\u003ePit Bikes for 8–10 Year Olds\u003c\/strong\u003e\u003cbr\u003eProgression bikes for growing riders.\u003c\/a\u003e\n    \u003ca href=\"\/pages\/pit-bikes-for-10-12-year-olds-uk\" style=\"background:#fff;padding:16px;border-radius:12px;text-decoration:none;color:#111;border:1px solid #e5e5e5;display:block;\"\u003e\u003cstrong\u003ePit Bikes for 10–12 Year Olds\u003c\/strong\u003e\u003cbr\u003eStep-up bikes for confident young riders.\u003c\/a\u003e\n    \u003ca href=\"\/collections\/rfn-pit-bikes\" style=\"background:#fff;padding:16px;border-radius:12px;text-decoration:none;color:#111;border:1px solid #e5e5e5;display:block;\"\u003e\u003cstrong\u003eRFN Pit Bikes\u003c\/strong\u003e\u003cbr\u003eBrowse the RFN petrol pit bike range.\u003c\/a\u003e\n    \u003ca href=\"\/collections\/manual-pit-bikes\" style=\"background:#fff;padding:16px;border-radius:12px;text-decoration:none;color:#111;border:1px solid #e5e5e5;display:block;\"\u003e\u003cstrong\u003eManual Pit Bikes\u003c\/strong\u003e\u003cbr\u003eFor riders ready for clutch control.\u003c\/a\u003e\n    \u003ca href=\"\/collections\/pit-bikes\" style=\"background:#fff;padding:16px;border-radius:12px;text-decoration:none;color:#111;border:1px solid #e5e5e5;display:block;\"\u003e\u003cstrong\u003eAll Pit Bikes\u003c\/strong\u003e\u003cbr\u003eView the full Garland pit bike range.\u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy Upgrade to the RFN Thunder 140 Pro?\u003c\/h2\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:24px 0;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"background:#f3f3f3;\"\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;\"\u003eFeature\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;\"\u003eSmaller Pit Bikes\u003c\/th\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;\"\u003eRFN Thunder 140 Pro\u003c\/th\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e\u003cstrong\u003eEngine\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eLower-capacity beginner or progression engines\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eGenuine YX 140cc 4-stroke engine\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e\u003cstrong\u003eGearbox\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eOften automatic, semi-auto or smaller manual setups\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eFull manual 4-speed gearbox\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e\u003cstrong\u003eWheel Setup\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eSmaller 10\/10, 12\/10 or 14\/12 setups\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e17 inch front \/ 14 inch rear big wheel setup\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e\u003cstrong\u003eGround Clearance\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eLower junior-style clearance\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e32.5cm ground clearance\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e\u003cstrong\u003eBest For\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eBeginners or developing riders\u003c\/td\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eExperienced riders wanting the biggest RFN Thunder option\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eThe RFN Thunder 140 Pro is the better choice if the rider has outgrown smaller pit bikes and wants a bigger, more powerful manual bike with serious off-road capability.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy Choose the RFN Thunder 140 Pro?\u003c\/h2\u003e\n\n\u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:28px 0;\"\u003e\n  \u003cdiv style=\"background:#f8f8f8;border-radius:16px;padding:22px;border:1px solid #e5e5e5;\"\u003e\n    \u003ch3 style=\"margin-top:0;\"\u003eGenuine YX 140cc Engine\u003c\/h3\u003e\n    \u003cp style=\"margin-bottom:0;\"\u003eThe proven YX 140cc engine gives strong, usable power and a serious step up from smaller bikes.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"background:#f8f8f8;border-radius:16px;padding:22px;border:1px solid #e5e5e5;\"\u003e\n    \u003ch3 style=\"margin-top:0;\"\u003eFull Manual Gearbox\u003c\/h3\u003e\n    \u003cp style=\"margin-bottom:0;\"\u003eA 4-speed manual gearbox gives experienced riders full control over power delivery.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"background:#f8f8f8;border-radius:16px;padding:22px;border:1px solid #e5e5e5;\"\u003e\n    \u003ch3 style=\"margin-top:0;\"\u003e17\/14 Big Wheel Setup\u003c\/h3\u003e\n    \u003cp style=\"margin-bottom:0;\"\u003eBigger wheels improve rollover, stability and confidence across rougher ground.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"background:#f8f8f8;border-radius:16px;padding:22px;border:1px solid #e5e5e5;\"\u003e\n    \u003ch3 style=\"margin-top:0;\"\u003eHydraulic Brakes\u003c\/h3\u003e\n    \u003cp style=\"margin-bottom:0;\"\u003eDual piston front and single piston rear hydraulic brakes deliver strong stopping control.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"background:#f8f8f8;border-radius:16px;padding:22px;border:1px solid #e5e5e5;\"\u003e\n    \u003ch3 style=\"margin-top:0;\"\u003eAdjustable Rear Shock\u003c\/h3\u003e\n    \u003cp style=\"margin-bottom:0;\"\u003eThe rebound-adjustable hydraulic rear shock allows setup changes for terrain and rider style.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"background:#f8f8f8;border-radius:16px;padding:22px;border:1px solid #e5e5e5;\"\u003e\n    \u003ch3 style=\"margin-top:0;\"\u003eTop Thunder Model\u003c\/h3\u003e\n    \u003cp style=\"margin-bottom:0;\"\u003eThe biggest and most capable bike in the RFN Thunder petrol pit bike range.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhere Does the RFN Thunder 140 Pro Fit in the Range?\u003c\/h2\u003e\n\n\u003cdiv style=\"background:#f5f5f5;padding:24px;border-radius:16px;margin:35px 0;\"\u003e\n  \u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:12px;\"\u003e\n    \u003cdiv style=\"background:#fff;padding:16px;border-radius:12px;border:1px solid #e5e5e5;\"\u003e\n      \u003cstrong\u003eSmaller RFN Thunder Bikes\u003c\/strong\u003e\u003cbr\u003eBetter for riders still developing confidence or needing less size and power.\n    \u003c\/div\u003e\n    \u003cdiv style=\"background:#C8FF5F;padding:16px;border-radius:12px;border:1px solid #b8ee50;\"\u003e\n      \u003cstrong\u003eRFN Thunder 140 Pro\u003c\/strong\u003e\u003cbr\u003eTop Thunder model with 140cc power and 17\/14 big wheels.\n    \u003c\/div\u003e\n    \u003ca href=\"\/collections\/manual-pit-bikes\" style=\"background:#fff;padding:16px;border-radius:12px;border:1px solid #e5e5e5;text-decoration:none;color:#111;display:block;\"\u003e\n      \u003cstrong\u003eManual Pit Bikes\u003c\/strong\u003e\u003cbr\u003eBrowse full manual clutch pit bikes.\n    \u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eIs the RFN Thunder 140 Pro Right for Your Rider?\u003c\/h2\u003e\n\n\u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:28px 0;\"\u003e\n  \u003cdiv style=\"background:#f8f8f8;border-radius:16px;padding:22px;border:1px solid #e5e5e5;\"\u003e\n    \u003ch3 style=\"margin-top:0;\"\u003eChoose the Thunder 140 Pro If...\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003eThe rider is experienced with manual pit bikes\u003c\/li\u003e\n      \u003cli\u003eYou want the biggest RFN Thunder petrol model\u003c\/li\u003e\n      \u003cli\u003eYou want a genuine YX 140cc engine\u003c\/li\u003e\n      \u003cli\u003eThe rider needs 17\/14 big wheel stability\u003c\/li\u003e\n      \u003cli\u003eYou want a pit bike that bridges the gap towards motocross\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"background:#f8f8f8;border-radius:16px;padding:22px;border:1px solid #e5e5e5;\"\u003e\n    \u003ch3 style=\"margin-top:0;\"\u003eConsider a Smaller Pit Bike If...\u003c\/h3\u003e\n    \u003cul\u003e\n      \u003cli\u003eThe rider is still learning clutch control\u003c\/li\u003e\n      \u003cli\u003eThis is their first petrol pit bike\u003c\/li\u003e\n      \u003cli\u003eYou want a lower or lighter bike\u003c\/li\u003e\n      \u003cli\u003eThe rider does not need 140cc power yet\u003c\/li\u003e\n      \u003cli\u003eThe 84cm seat height or 80kg dry weight is too much\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eRider Sizing Guide\u003c\/h2\u003e\n\n\u003cdiv style=\"background:#f8f8f8;padding:22px;border-radius:14px;margin:24px 0;border:1px solid #e5e5e5;\"\u003e\n  \u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e the RFN Thunder 140 Pro should be chosen by rider height, strength and experience — not age alone.\u003c\/p\u003e\n  \u003cp style=\"margin-bottom:0;\"\u003eWith an 84cm seat height, 80kg dry weight and 75kg maximum rider weight, the Thunder 140 Pro is best suited to experienced riders who are physically ready for a large manual pit bike.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:24px 0;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eBest For\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eExperienced riders wanting serious off-road performance\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eExperience Level\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eExperienced manual rider only\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eSeat Height\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e84cm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eDry Weight\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e80kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eWheel Size\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e17 inch front \/ 14 inch rear\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eMax Rider Weight\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e75kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003eIf you are unsure whether this is the right step, compare options using our \u003ca href=\"\/pages\/best-pit-bike-for-beginners-uk\"\u003eBest Pit Bike for Beginners UK guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eBig Wheel 140cc Pit Bikes: Why They Matter\u003c\/h2\u003e\n\n\u003cdiv style=\"background:#f8f8f8;padding:22px;border-radius:14px;margin:24px 0;border:1px solid #e5e5e5;\"\u003e\n  \u003cp\u003eA big wheel 140cc pit bike gives riders more stability, stronger performance and a more motocross-style riding feel compared with smaller pit bikes.\u003c\/p\u003e\n  \u003cp style=\"margin-bottom:0;\"\u003eThe RFN Thunder 140 Pro combines proven YX engine performance with a larger 17\/14 chassis setup, making it ideal for riders wanting a more serious off-road machine.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eEngine, Gearbox \u0026amp; Riding Feel\u003c\/h2\u003e\n\n\u003cp\u003eThe genuine YX 140cc engine gives the Thunder 140 Pro strong acceleration, usable torque and a more aggressive riding feel than lower-capacity pit bikes.\u003c\/p\u003e\n\n\u003cp\u003eThe full manual 4-speed gearbox gives experienced riders proper clutch control and full command of the bike’s power delivery.\u003c\/p\u003e\n\n\u003cp\u003eCombined with the 17\/14 wheel setup, 32.5cm ground clearance, USD forks and hydraulic braking package, the Thunder 140 Pro feels substantial, capable and built for hard off-road use.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhat’s in the Box?\u003c\/h2\u003e\n\n\u003cdiv style=\"background:#f8f8f8;padding:22px;border-radius:14px;margin:24px 0;border:1px solid #e5e5e5;\"\u003e\n  \u003cul style=\"margin-bottom:0;\"\u003e\n    \u003cli\u003eRFN Thunder 140 Pro 140cc pit bike\u003c\/li\u003e\n    \u003cli\u003eFinal assembly components\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003cp\u003eThe bike is supplied boxed or partly assembled. Final assembly, mechanical checks and safety inspection are required before use.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eAssembly should be completed by a mechanically capable adult. Always check bolts, brakes, chain tension, controls, oil and fuel before riding.\u003c\/em\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\n\u003cp\u003eBelow you'll find the key technical specifications for the RFN Thunder 140 Pro, including engine details, suspension, braking, wheel size and rider sizing.\u003c\/p\u003e\n\n\u003ctable style=\"width:100%;border-collapse:collapse;margin:24px 0;\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eEngine\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eYX 140cc 4-Stroke Single Cylinder — Air Cooled\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eMax Power\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e11.15bhp at 8,000rpm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eMax Torque\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e10.2Nm at 7,500rpm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eCompression Ratio\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e9.8:1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eBore x Stroke\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e56 x 57mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eFuel System\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eCarburettor\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eIgnition\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eKey Ignition\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eStart\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eKick Start\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eTransmission\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eManual 4-Speed (N-1-2-3-4)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eFinal Drive\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eChain\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eTop Speed\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e75km\/h\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eFuel Capacity\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e3.2 Litres\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eFront Suspension\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eUSD Forks — Non-Adjustable\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eRear Suspension\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eRebound Adjustable Hydraulic Shock\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eFront Brake\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eHydraulic Dual Piston — 220mm Ventilated Wavy Disc\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eRear Brake\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003eHydraulic Single Piston — 190mm Ventilated Wavy Disc\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eFront Wheel\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e17 inch Steel Rim \/ Alloy Hub\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eRear Wheel\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e14 inch Steel Rim \/ Alloy Hub\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eFront Tyre\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e70\/100-17\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eRear Tyre\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e90\/100-14\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eWheelbase\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e122cm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eSeat Height\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e84cm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eGround Clearance\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e32.5cm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eDry Weight\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e80kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eMax Rider Weight\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e75kg\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003cth style=\"border:1px solid #ddd;padding:12px;text-align:left;background:#f3f3f3;\"\u003eWarranty\u003c\/th\u003e\n      \u003ctd style=\"border:1px solid #ddd;padding:12px;\"\u003e30 Days Parts Only\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWarehouse Stock \u0026amp; Fast UK Delivery\u003c\/h2\u003e\n\n\u003cdiv style=\"background:#f8f8f8;padding:24px;border-radius:16px;margin:30px 0;border-left:6px solid #C8FF5F;\"\u003e\n  \u003ch3 style=\"margin-top:0;\"\u003eOnline-Only Specialist Pit Bike Retailer\u003c\/h3\u003e\n  \u003cp\u003eGarland Powersports is an online-only specialist retailer focused on performance electric bikes, pit bikes and youth off-road machines.\u003c\/p\u003e\n  \u003cp\u003eRFN pit bikes are held securely in warehousing and dispatched across the UK.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eDelivery options:\u003c\/strong\u003e at checkout, you can choose boxed delivery for the fastest and best-value option, or select a built and ready-to-ride service if you would prefer the bike assembled, safety checked and prepared before delivery.\u003c\/p\u003e\n  \u003cp\u003eBoxed delivery is the best-value option and requires final assembly before riding. Built and ready-to-ride options are available for customers who want the bike prepared before it arrives.\u003c\/p\u003e\n  \u003cp style=\"margin-bottom:0;\"\u003e\u003cstrong\u003eFast UK delivery available across the full RFN pit bike range.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003ch3\u003eIs the RFN Thunder 140 Pro suitable for beginners?\u003c\/h3\u003e\n\u003cp\u003eNo. The RFN Thunder 140 Pro is best suited to experienced riders. It has a full manual gearbox, 140cc engine, tall 84cm seat height and 80kg dry weight.\u003c\/p\u003e\n\n\u003ch3\u003eIs the RFN Thunder 140 Pro manual?\u003c\/h3\u003e\n\u003cp\u003eYes. The Thunder 140 Pro uses a full manual 4-speed gearbox with clutch control.\u003c\/p\u003e\n\n\u003ch3\u003eWhat engine does the RFN Thunder 140 Pro use?\u003c\/h3\u003e\n\u003cp\u003eIt uses a genuine YX 140cc 4-stroke single-cylinder air-cooled engine.\u003c\/p\u003e\n\n\u003ch3\u003eHow powerful is the RFN Thunder 140 Pro?\u003c\/h3\u003e\n\u003cp\u003eIt produces 11.15bhp at 8,000rpm and 10.2Nm of torque at 7,500rpm.\u003c\/p\u003e\n\n\u003ch3\u003eWhat is the seat height?\u003c\/h3\u003e\n\u003cp\u003eThe RFN Thunder 140 Pro has an 84cm seat height.\u003c\/p\u003e\n\n\u003ch3\u003eHow heavy is the Thunder 140 Pro?\u003c\/h3\u003e\n\u003cp\u003eThe dry weight is approximately 80kg.\u003c\/p\u003e\n\n\u003ch3\u003eWhat wheels does it have?\u003c\/h3\u003e\n\u003cp\u003eIt uses a 17 inch front and 14 inch rear big wheel setup.\u003c\/p\u003e\n\n\u003ch3\u003eHow fast is the RFN Thunder 140 Pro?\u003c\/h3\u003e\n\u003cp\u003eThe listed top speed is 75km\/h, depending on rider weight, terrain and conditions.\u003c\/p\u003e\n\n\u003ch3\u003eCan the RFN Thunder 140 Pro be used on the road?\u003c\/h3\u003e\n\u003cp\u003eNo. The RFN Thunder 140 Pro is not road legal. It is designed for private land and off-road use only.\u003c\/p\u003e\n\n\u003ch3\u003eDoes it need assembly?\u003c\/h3\u003e\n\u003cp\u003eYes. The bike is supplied boxed or partly assembled and requires final assembly, setup and safety checks before riding.\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\n\u003cdiv style=\"background:#111;color:#fff;padding:26px;border-radius:16px;margin:34px 0;\"\u003e\n  \u003cp\u003e\u003cstrong style=\"color:#C8FF5F;\"\u003eChoose the RFN Thunder 140 Pro\u003c\/strong\u003e if the rider is experienced and wants the biggest, most capable petrol pit bike in the Thunder range.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong style=\"color:#C8FF5F;\"\u003eChoose a smaller pit bike\u003c\/strong\u003e if the rider is still learning clutch control or needs a lower, lighter bike.\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong style=\"color:#C8FF5F;\"\u003eChoose an electric RFN option\u003c\/strong\u003e if you want instant electric power with less petrol maintenance.\u003c\/p\u003e\n  \u003cp style=\"margin-bottom:0;\"\u003e\u003cstrong style=\"color:#C8FF5F;\"\u003eFor experienced riders wanting a big wheel 140cc petrol pit bike that bridges the gap towards motocross, the Thunder 140 Pro is the top RFN Thunder choice.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#f5f5f5;padding:24px;border-radius:16px;margin:35px 0;\"\u003e\n  \u003ch2 style=\"margin-top:0;\"\u003eRelated Pit Bike Guides\u003c\/h2\u003e\n  \u003cdiv style=\"display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:12px;\"\u003e\n    \u003ca href=\"\/pages\/best-pit-bike-for-beginners-uk\" style=\"background:#fff;padding:18px;border-radius:12px;text-decoration:none;color:#111;border:1px solid #e5e5e5;display:block;\"\u003e\u003cstrong\u003eBest Pit Bike for Beginners\u003c\/strong\u003e\u003cbr\u003eCompare the best first petrol pit bikes.\u003c\/a\u003e\n    \u003ca href=\"\/pages\/pit-bikes-for-8-10-year-olds-uk\" style=\"background:#fff;padding:18px;border-radius:12px;text-decoration:none;color:#111;border:1px solid #e5e5e5;display:block;\"\u003e\u003cstrong\u003ePit Bikes for 8–10 Year Olds\u003c\/strong\u003e\u003cbr\u003eProgression bikes for growing riders.\u003c\/a\u003e\n    \u003ca href=\"\/pages\/pit-bikes-for-10-12-year-olds-uk\" style=\"background:#fff;padding:18px;border-radius:12px;text-decoration:none;color:#111;border:1px solid #e5e5e5;display:block;\"\u003e\u003cstrong\u003ePit Bikes for 10–12 Year Olds\u003c\/strong\u003e\u003cbr\u003eStep-up bikes for confident riders.\u003c\/a\u003e\n    \u003ca href=\"\/collections\/rfn-pit-bikes\" style=\"background:#fff;padding:18px;border-radius:12px;text-decoration:none;color:#111;border:1px solid #e5e5e5;display:block;\"\u003e\u003cstrong\u003eRFN Pit Bikes\u003c\/strong\u003e\u003cbr\u003eBrowse the RFN petrol range.\u003c\/a\u003e\n    \u003ca href=\"\/collections\/manual-pit-bikes\" style=\"background:#fff;padding:18px;border-radius:12px;text-decoration:none;color:#111;border:1px solid #e5e5e5;display:block;\"\u003e\u003cstrong\u003eManual Pit Bikes\u003c\/strong\u003e\u003cbr\u003eFor riders ready for clutch control.\u003c\/a\u003e\n    \u003ca href=\"\/collections\/pit-bikes\" style=\"background:#fff;padding:18px;border-radius:12px;text-decoration:none;color:#111;border:1px solid #e5e5e5;display:block;\"\u003e\u003cstrong\u003eAll Pit Bikes\u003c\/strong\u003e\u003cbr\u003eShop the full Garland pit bike range.\u003c\/a\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background:#f8f8f8;padding:24px;border-radius:16px;margin:35px 0;border-left:6px solid #C8FF5F;\"\u003e\n  \u003ch2 style=\"margin-top:0;\"\u003eReady to Choose the RFN Thunder 140 Pro?\u003c\/h2\u003e\n  \u003cp\u003eThe RFN Thunder 140 Pro is the flagship petrol pit bike in the Thunder range, built for experienced riders who want 140cc manual power, big wheel stability and serious off-road performance.\u003c\/p\u003e\n  \u003cp style=\"margin-bottom:0;\"\u003e\u003cstrong\u003eOrder online today from Garland Powersports with fast UK delivery.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp style=\"margin:20px 0;\"\u003e\n  \u003ca href=\"\/collections\/pit-bikes\" style=\"background:#C8FF5F;color:#000;padding:14px 22px;text-decoration:none;font-weight:bold;border-radius:8px;display:inline-block;margin-right:8px;\"\u003eShop All Pit Bikes\u003c\/a\u003e\n  \u003ca href=\"\/collections\/rfn-pit-bikes\" style=\"background:#111;color:#fff;padding:14px 22px;text-decoration:none;font-weight:bold;border-radius:8px;display:inline-block;\"\u003eView RFN Pit Bikes\u003c\/a\u003e\n\u003c\/p\u003e","brand":"RFN","offers":[{"title":"Default Title","offer_id":55356473835896,"sku":"RFNTHP140","price":1099.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0816\/9550\/6752\/files\/Thunder-140-red-blue-side--1024x683.webp?v=1750366888","url":"https:\/\/www.garlandpowersports.com\/products\/rfn-thunder-140-pro-140cc-pit-bike","provider":"Garland Powersports","version":"1.0","type":"link"}