Revvi 20 Seat Height & Rider Size Guide

Revvi 20-Inch Rider Sizing Guide

Revvi 20 Seat Height & Rider Size Guide

The standard Revvi 20 is the largest conventional bike in the core Revvi progression range. With an adjustable seat height of approximately 68.5–86.5cm, a 36V 800W motor, 20-inch wheels, full suspension and hydraulic brakes, it is designed for older, taller and more confident riders who have genuinely outgrown the Revvi 18.

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Quick Answer

How tall is the Revvi 20 seat?

The Revvi 20 seat adjusts from approximately 68.5cm at its lowest position to 86.5cm at its highest. It is generally best suited to confident riders around 140–165cm tall and approximately 10–14 years old.

Best fitThe rider reaches the ground securely and genuinely needs more room than the Revvi 18 provides.

Too largeThe rider is stretched, intimidated or unable to support the 23kg bike confidently.

Needs more performanceThe rider fits the 20-inch platform but has outgrown the standard model's performance.

Seat Height68.5–86.5cm

Rider Height140–165cm

Typical Age10–14 Years

Top SpeedUp to 22mph

How the measurement works

Measure vertically from level ground to the saddle

The published 68.5–86.5cm range is measured vertically from level ground to the top of the saddle. Start at a lower setting while the rider becomes familiar with the bike, then raise it gradually as their height increases.

The wide adjustment range creates useful growing room, but the Revvi 20 should still fit the rider now—not simply be bought as a bike to grow into.

Physical Dimensions

Revvi 20 sizing specifications

The Revvi 20 adds more physical room, battery capacity and performance than the Revvi 18 while remaining substantially more manageable than the 20 Plus.

Measurement	Revvi 20	What It Means
Adjustable seat height	Approx. 68.5–86.5cm	Wide adjustment for older and taller growing riders.
Wheel size	20 inches	The largest wheel size in the standard Revvi progression range.
Typical rider height	Approx. 140–165cm	Best suited to riders who need considerably more room than the Revvi 18.
Typical age guide	Approx. 10–14 years	Age is guidance only; fit, strength and experience matter.
Bike weight	Approx. 23kg	The rider should comfortably support and manoeuvre the bike.
Maximum rider weight	Approx. 65kg	Suitable for larger youth riders within the stated limit.
Motor	36V 800W brushless hub motor	Stronger acceleration and performance than the Revvi 18.
Speed settings	Approx. 10 / 16 / 22mph	Three selectable stages for controlled progression.
Brakes	Front and rear hydraulic discs	Strong and predictable braking for the larger platform.
Battery	36V 7.5Ah removable lithium	More capacity than the Revvi 18 and easy spare-battery swapping.

The adjustable range does not make it a small-rider bike

Even at its lowest seat position, the Revvi 20 is a large 23kg electric bike with 20-inch wheels and an 800W motor.

The rider should be physically ready for the complete bike, not merely able to touch the ground at the lowest saddle setting.

Rider Suitability

Who is the Revvi 20 best suited to?

The ideal Revvi 20 rider is older, taller and already confident with throttle control, hydraulic braking and a heavier electric bike.

Physical fit

The rider should reach the ground and controls naturally without stretching.

Previous experience

They should already understand controlled acceleration, braking and off-road balance.

Strength

They should comfortably support, turn and manoeuvre an approximately 23kg bike.

Good match

Choose the Revvi 20 when:

The rider is approximately 140–165cm tall
They have genuinely outgrown the Revvi 18
They need more room, battery capacity and stability
They already control a throttle and hydraulic brakes confidently
The 20 Plus would be unnecessarily powerful or expensive
You want the best all-round large Revvi rather than maximum performance

Choose another model

Avoid the Revvi 20 when:

The rider is still learning basic balance or throttle control
They cannot reach the ground securely
The 23kg bike feels physically intimidating
The Revvi 18 already provides enough room and performance
They are highly experienced and already need the 20 Plus
The bike is being chosen mainly for future growth

Inside-Leg Check

How to measure your child for a Revvi 20

Measure with the rider's normal footwear on a flat floor.

Stand naturally

Ask the rider to stand against a wall with their feet slightly apart.

Use a book

Place a book between the legs and raise it gently to simulate a saddle.

Measure downward

Measure vertically from the top of the book to level ground.

Inside leg is only one part of the decision

Saddle width, suspension sag, footwear and riding posture all affect real-world reach.

Strength and confidence matter just as much on a larger bike. The rider should be able to stabilise it, brake confidently and move it around without adult help.

Where It Fits in the Range

Revvi 18 vs Revvi 20 vs Revvi 20 Plus

The standard Revvi 20 sits between the manageable Revvi 18 and the far more performance-focused 48V Revvi 20 Plus.

Comparison	Revvi 18	Revvi 20	Revvi 20 Plus
Typical rider	Growing progression rider	Older, taller all-round rider	Highly confident performance rider
Wheel size	18 inch	20 inch	20 inch
Typical age	Approx. 8–12	Approx. 10–14	Approx. 10–14+
Motor	36V 500W	36V 800W	48V 1000W
Battery	36V 5Ah	36V 7.5Ah	48V 15Ah
Top speed	Approx. 20mph	Approx. 22mph	Approx. 27mph
Bike weight	Approx. 20kg	Approx. 23kg	Approx. 28kg
Ride character	Manageable sweet spot	Large but balanced all-rounder	Stronger, heavier and more aggressive
Best reason to choose	Easier progression	Best balance of size, power and usability	Maximum 20-inch Revvi performance

Our recommendation

Choose the Revvi 18 when control and manageable sizing still matter more than maximum room.

Choose the standard Revvi 20 for the strongest all-round blend of size, power, battery capacity and usability.

Choose the Revvi 20 Plus only when the rider is genuinely experienced and ready for considerably more performance.

Best-Value Way to Buy

Complete the Revvi 20 with the right bundle

The Revvi 20 is normally bought for a regular older rider, making both proper protective equipment and spare battery capacity especially useful.

Ride ready

Revvi 20 + Riding Gear Bundle

Best for: riders who still need a complete protective setup.

Revvi 20 800W electric bike
Revvi full-face helmet
Revvi riding jersey
Revvi long-finger riding gloves
A saving compared with purchasing the items separately

This is the easiest route when the rider does not already own suitable kit.

Extended ride time

Revvi 20 + Genuine Spare Battery Bundle

Best for: longer sessions, regular use and weekends away.

The bike's standard 36V 7.5Ah battery remains included
A genuine compatible spare battery is supplied as well
Swap batteries instead of ending the session to recharge
Ideal for tracks, paddocks, fields and riding trips
Often better value than adding a spare battery later

For a keen rider who already owns gear, this is the Revvi 20 package we would push hardest.

Which Revvi 20 bundle should you choose?

Choose the riding gear bundle when the rider still needs a helmet, jersey and gloves.

Choose the extended ride-time bundle when protective kit is already covered. Two batteries make a major practical difference on a bike likely to be ridden regularly.

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Expert View

My view on Revvi 20 sizing

My take as a British motocross rider

The standard Revvi 20 is the bike I would recommend to most older riders who have genuinely outgrown the Revvi 18. It gives them more room, stronger performance and a bigger battery without immediately jumping to the weight and aggression of the 20 Plus.

The important thing is not to buy it too early. A rider who properly controls the Revvi 18 will progress better than a smaller child trying to manage a Revvi 20 mainly because it offers more growing room.

Common Questions

Revvi 20 seat height FAQs

What is the seat height of the Revvi 20?

The Revvi 20 has an adjustable seat height of approximately 68.5–86.5cm, measured from level ground to the top of the saddle.

What rider height is the Revvi 20 suitable for?

The Revvi 20 is generally best suited to riders around 140–165cm tall, although inside-leg length, strength, confidence and previous experience also matter.

What age is the Revvi 20 for?

The Revvi 20 is generally aimed at older and more confident riders aged approximately 10–14 years old.

Is the Revvi 20 suitable for a beginner?

It is not normally the best first powered bike. The Revvi 18 or a smaller model is usually easier for riders still developing basic balance, throttle and braking control.

Should I choose the Revvi 18 or Revvi 20?

Choose the Revvi 18 for a more manageable progression bike. Choose the Revvi 20 when the rider is taller, stronger and genuinely needs the larger 20-inch platform.

Should I choose the Revvi 20 or Revvi 20 Plus?

Choose the standard Revvi 20 for smoother, more manageable progression and strong all-round value. Choose the 20 Plus for a highly confident rider who wants considerably more power, battery capacity and suspension performance.

How fast is the Revvi 20?

The Revvi 20 has three selectable speed settings of approximately 10mph, 16mph and 22mph.

What motor does the Revvi 20 use?

The Revvi 20 uses a 36V 800W brushless hub motor.

What battery does the Revvi 20 use?

It uses a removable 36V 7.5Ah lithium battery.

How long does the Revvi 20 battery last?

Approximate ride time is up to 90 minutes in slow mode, 60 minutes in medium and 35 minutes in fast mode, depending on rider weight, terrain and conditions.

Which Revvi 20 bundle is best?

Choose the riding gear bundle when suitable protective equipment is still needed. Choose the spare battery bundle when longer sessions and reduced charging downtime matter more.

Can the Revvi 20 be used on public roads or pavements?

No. It is intended for suitable private land with the landowner's permission and should be used with appropriate protective equipment and responsible adult supervision.

Continue Your Research

Explore more Revvi 20 guides

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Off-road use only on suitable private land with the landowner's permission. Rider suitability should be assessed individually. Always use appropriate protective equipment and responsible adult supervision. Measurements are approximate and specifications may be updated.