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

Code: MGH0909_4GR

Roller Set for QMB139/GY6 50cc Engines- 4 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) - 4 Grams.

Fits most 50cc/100cc Chinese 4 Stroke GY6/QMB139 engines.