Precision Clutch Spring for QMB139 50cc GY6 Scooter Engines

Description

These are a set of three clutch springs for 50cc GY6 QMB139 engines, and they come to us from NCY, the first name in top quality replacement scooter parts and accessories.
One of the fundamental upgrades you can make to your scooter is swapping out the clutch springs for ones that will give you more acceleration off the line. The different colors are different stiffnesses to allow you to dial in your scooter to just the way you like it.
These springs are great for the beginning tuner or the advanced looking for more control over the performance of their scooter.
Hey, what size clutch spring do I need?
If you are perplexed about clutch springs, please read our Selecting Scooter Clutch Springs for more information.

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