This adjustable ramps kit for sidewinder includes dalton ramps, weights and all the hardware to get the specific rpm and have the most of your new precision efi performance ecu reflash.
Dalton quick adjustable weights for yamaha sidewinder, allows for adding or subtracting mass from the body of the flyweight without removing almost anything from the clutch. Make for quick and easy testing and tuning.
We also recommend the addition of the sidewinder specific springs and helix cam set.