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High-performance "Black Magic" clutch spring for the Zenoah G43L (GSR40, GSR40-TS and Go-Bike) engine. Also works on most 49cc Pocketbike clutches.
This custom-made stiffer spring causes the clutch to engage at a higher RPM for faster acceleration. 20% stiffer than stock. Great for improving your hole shot!
Powdercoated orange color.
High-performance "Black Magic" clutch spring for the Zenoah G43L (GSR40, GSR40-TS and Go-Bike) engine. Also works on most 49cc Pocketbike clutches.
This custom-made stiffer spring causes the clutch to engage at a higher RPM for faster acceleration. 20% stiffer than stock. Great for improving your hole shot!
Powdercoated orange color.