For the X Class the options are mostly your choice such as throttle type and T Count. 3T is high speed motor and 4T is high torque. Youll need to use a E-Street Motor Kit because the QS Motors dont have the right drop out size for the X Class. Drop out stands for motor diameter or distance between the rear forksX Class and all Ariel Riders -Drop out 170-Fly Wheel is 7 speed-T Count 3T is recommended -Throttle type is your choice
For the X Class the options are mostly your choice such as throttle type and T Count. 3T is high speed motor and 4T is high torque. Youll need to use a E-Street Motor Kit because the QS Motors dont have the right drop out size for the X Class. Drop out stands for motor diameter or distance between the rear forks X Class and all Ariel Riders -Drop out 170 -Fly Wheel is 7 speed -T Count 3T is recommended -Throttle type is your choice