Kyosho IFW637-09 Light Weight Clutch Spring (3) (0.90)

Kyosho IFW637-09 Light Weight Clutch Spring (3) (0.90)

The Kyosho IFW637-09 is a set of three lightweight clutch springs rated at 0.90, designed to pair with the clutch shoe assembly on compatible Kyosho engines. Spring rate affects the engagement RPM of the clutch, letting racers tune power delivery to track conditions.

Sold as a set of three, the IFW637-09 is a genuine Kyosho tuning part for the clutch system.

• Genuine Kyosho part, part number IFW637-09
• Light weight clutch spring
• 0.90 spring rate
• Sold as a set of 3