●Optimized appearance and overall weight design, it's beneficial for operation and heat dissipation also decrease the weight effectively.

●Wider belt-shifting range to creat greater torque at low RPM and increase the range of belt-shifting at high RPM.

●Optimized roller grooves desgin to improve the accelerating time also to prevent loss too much on the engine torque value.

●When adjusting the vehicle, the optimal weight 7g X 6 rollers is recommended.