Last Christmas dispatch 21 Dec Order early
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Amped A20 Pro Quick Release Seat Clamp (Tool-Free Adjustment)
4.9Excellent241 reviews on Trustpilot

Amped A20 Pro Quick Release Seat Clamp (Tool-Free Adjustment)

Ā£9.99

Pay in 3 with Klarna

  • Split your purchase into 3 interest-free payments, taken every 30 days.
  • Choose Klarna at checkout. No fees when you pay on time.
  • 18+, UK residents only. Credit subject to status. T&Cs apply.
  • Missed payments may affect your ability to use Klarna and could affect your credit score.
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Christmas delivery: order by Mon 21 Dec Our last dispatch date for Christmas. Order early to be safe.
Christmas info

Christmas delivery

Last dispatch for ChristmasMonday 21 December
  • This is the last day we dispatch orders for Christmas delivery. It is the day your order leaves us, not the day it arrives.
  • Couriers get much busier in December, so the earlier you order, the more time you have before the big day.
  • Pre-order bikes show their own expected dispatch date. If it is after 21 December, the bike will not arrive for Christmas.
  • Unpack, set up and charge the bike as soon as it arrives, well before Christmas morning.
Tracked UK courier delivery Sent from our UK warehouse by tracked courier.
Delivery info
30-day returns On unused items in their original packaging.

Delivery information

  • Sent from our UK warehouse by tracked courier, such as APC Overnight.
  • Tracking details are emailed once the courier has your order.
  • An adult may need to be in to receive larger deliveries.
  • Parts and accessories may arrive separately from your bike.
  • Delivery can take longer around bank holidays, Black Friday and Christmas.
  • We are online only, so collection is not available.

Returns

  • Changed your mind? Return unused items within 30 days of delivery.
  • Items must be unused, undamaged and complete, with all accessories and original packaging.
  • A bike that has been ridden or used may be refused, or refunded at a reduced value.
  • Arrived damaged or incorrect? Contact us promptly, ideally within 48 hours, with your order number and photos.
  • Return postage is paid by you for a change of mind. We cover it if the item is faulty or incorrect.
  • Refunds go back to your original payment method within 14 days of us receiving the item.
  • Please contact us before sending anything back, so we can give you return instructions.

This does not affect your statutory rights.

  • Description

    Adjust your seat height in seconds ā€” no tools needed.

    This quick release seat clamp allows fast and easy seat height adjustments, making it ideal for growing riders or bikes shared between multiple users.

    • Fits Amped A20 Pro models only
    • Quick release design ā€“ no tools required
    • Perfect for growing riders
    • Ideal for shared bikes or frequent adjustments

    A simple upgrade that adds convenience and flexibility to your bike setup.

    Fast UK delivery available.

  • Delivery & Returns

    Customers have 30 days from when an item arrives to return a purchaseĀ to us. All items must be returned in new/unused condition and in original packaging.

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Revvi full-face helmet sizes

How to measure

Measure around the widest part of the rider's head. The tape should pass above the eyebrows and ears and around the fullest part at the back of the head.

SizeHead circumference
XS, Extra Small48 to 50cm
S, Small51 to 54cm
M, Medium55 to 58cm
L, Large59 to 61cm

Always choose by the rider's actual head measurement, not by age. Head shape can also affect how a helmet fits.

Between sizes? Do not automatically choose a larger helmet for growing room. A helmet must fit securely now. If the rider falls between sizes, check the fit carefully before use.

Amped AMP-1 helmet sizes

How to measure

Measure around the widest part of the rider's head. The tape should pass above the eyebrows and ears and around the fullest part at the back of the head.

SizeHead circumference
M, Medium54 to 58cm
L, Large58 to 62cm

Always choose by the rider's actual head measurement, not by age. Head shape can also affect how a helmet fits.

Measuring exactly 58cm? That falls in both sizes. Fit varies with head shape, so check the measurement and that the helmet sits securely before use. Do not choose a loose helmet to allow growing room.

Revvi riding jersey sizes

Choosing a size

The Revvi Kids Riding Jersey comes in dedicated sizes for younger children and growing youth riders. Select the size before adding it to your basket.

SizeAge guide
Age 2About 2 years
Age 3About 3 years
Age 4About 4 years
Age 5About 5 years
YS, Youth SmallAges 6 to 7
YM, Youth MediumAges 8 to 9
YL, Youth LargeAges 10 to 11

Ages are a guide only. Consider the child's height, build and preferred fit too.

Between sizes? If the rider is between sizes, still growing or likely to wear a base layer underneath, the larger size may be more comfortable.

Kids riding jersey sizes

How to measure

Compare these with a jersey or long-sleeve top that already fits the rider well. Chest width is measured across the front with the jersey laid flat, so it is half the full chest.

SizeAge guideHalf chestLength
2 to 3Ages 2 to 331cm49cm
3 to 4Ages 3 to 433cm51cm
4 to 5Ages 4 to 535cm53cm
5 to 6Ages 5 to 637cm55cm
6 to 7Ages 6 to 739cm57cm
YS, Youth SmallAges 7 to 941cm59cm
YM, Youth MediumAges 9 to 1145cm63cm
YL, Youth LargeAges 11 to 1449cm67cm

Ages are a guide only. The chest width and body length are the best way to choose.

Riding glove sizes

How to measure

Palm: straight across the widest part of the palm, not including the thumb.
Length: from the base of the wrist to the tip of the longest finger.

SizeAge guidePalm widthHand length
2 to 3Ages 2 to 37cm11.5cm
4 to 5Ages 4 to 57.5cm12.5cm
6 to 7Ages 6 to 78cm13.5cm
YS, Youth SmallAges 8 to 98.5cm15cm
YM, Youth MediumAges 10 to 119.5cm16.5cm
YL, Youth LargeAges 12 to 1310cm17.5cm
YXL, Youth Extra LargeAges 13+10.5cm18.5cm

Use the measurements rather than age alone. Hand shapes vary, so check both wherever possible. Once fitted, make sure the rider can comfortably use the throttle, brakes and every handlebar control.

Between sizes? The larger size usually gives a more comfortable fit and a little growing room, but the glove must not get in the way of safe control of the bike.