Roller Weight set for QMB139/50cc 4stroke engines (16x13mm) - 5 Grams

Code: MGH0909_5GR
Roller Weight set for QMB139/50cc 4stroke engines (16x13mm) - 5 Grams Roller Weight set for QMB139/50cc 4stroke engines (16x13mm) - 5 Grams
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Roller Set for QMB139/GY6 50cc Engines- 5 Grams 

 
- Replace OEM roller weights size 16x13
- Kit of 6
- Choose from 4 Gram through 7 Gram Weights.
- Lower weight improves acceleration and re-acceleration properties
- Higher weight improves top end speed
- Fits 50cc/100cc 4 Stroke GY6/QMB139 engines. 
Roller Weight set for QMB139/50cc 4 Stroke Engines (16x13mm) - 5 Grams.
Fits most 50cc/100cc Chinese 4 Stroke GY6/QMB139 engines.