Replacement Springs for 20 & 30 Series Driver

Spring for Comet 20 & 30 Series Driver Units
Comes as a set of 2

Spring Engagement Chart
For 20 & 30 Series:
 
3300 RPM using Zinc Weights (320 Grams)

4200 RPM using  Alum. Die Cast (146.8 Grams) 

4700 RPM using  Mod. Alum (90 Grams) 

Part Number: 216111

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Local Pickup Address:
BMI Karts & Parts
769 E. Main St.
Versailles, OH 45380