Clutch Spring Tuning Kit SET 3.
This kit consists of 3 sets of clutch springs for your Honda Ruckus clutch. This kit is meant for the high performance tuner in all of us. The 3 different set of springs are different stiffness's. The natural springs are slightly stiffer than stock, the yellow spring are slightly stiffer than the natural, and the blue springs are the stiffest.
The stiffer the springs are in the clutch, the higher the engine RPM is before they open and engage the clutch. These will increase your take off speed. They are sold in a set because every scooter has a different level of performance, so you should find the right spring that works for your scooter.