SAVE NOW! Hop up your stock Apex or DRR mini quad!How to determine if you have small or large taper flywheel - remove water pump side cover to see large gold flywheel.- Small taper will be all gold even in the center where it mounts on crank - Large taper has a black insert where flywheel mounts to crankKit Includes:- Malossi Aluminum 90cc Cylinder kit that (uses your stock crank) - Malossi digital pvl style inner rotor ignition- Head plug- Spark Plug- Base Gaskets- Spark plug boot waterproof- Jet kit- Torque Spring- Rollers- Clutch Shoe Spring- Wrist Pin Bearing 12x15