Display controls – To fit Revvi 20″ Plus + 24″ bikes a20prospare Feature What It Means Why Feature What It Means Why It Helps Young Riders Automatic Transmission No gears and no clutch lever Keeps riding simple and confidence building 50cc Engine Small petrol 4 stroke engine A manageable introduction to petrol bike riding Electric Start Simple push button starting Makes getting going easier for parents and riders 10 Inch Wheels Compact MotoX rim setup Keeps the bike manageable for young riders Proper Pit Bike Chassis Chromoly steel frame Impact absorbing EPS inner liner Revvi 20 Plus & 24 Display Controls If your original display or controls have become damaged or are no longer functioning correctly