Naraku
Description
Keep your CVT running at peak efficiency with the Naraku Premium 729-18-30 Drive Belt. Engineered specifically for short case QMB139 50cc engines paired with a 12" rear wheel, this belt delivers improved grip and flex over standard replacement belts — translating to smoother power delivery, better acceleration, and longer service life. Made in Taiwan to Naraku's premium performance standard.
Key Features
- Premium rubber compound — improved grip and flex over standard OEM-style belts
- Smoother power transmission and improved acceleration response
- Correct fitment for short case QMB139 engines with 12" rear wheel
- Made in Taiwan to Naraku performance specifications
- Direct drop-in replacement — no modifications required
Specifications
- Belt Size: 729-18-30
- Length: 729mm
- Top Width: 18mm
- Groove Angle: 30°
- Type: CVT V-Belt
- Made in Taiwan
- SKU: 137-60 | MPN: NK900.54
Compatibility
Fits QMB139 49cc/50cc short case engines with 12" rear wheel. Also fits various unlisted 50cc makes and models using the 729-18-30 belt size. Always verify belt dimensions before ordering.
Product Diagrams
Features
Specifications
Belt Size: 729-18-30 | Length: 729mm | Top Width: 18mm | Groove Angle: 30° | Type: CVT V-Belt | Origin: Taiwan | SKU: 137-60 | MPN: NK900.54
Model Fitments
QMB139 49cc/50cc short case engines with 12" rear wheel; various 50cc makes/models using 729-18-30 belt
-
Same day shipping for orders placed before 2PM (CST) M-F
-
30-day return period on eligible items
-
Flat-rate shipping for orders shipped to the 48 Contiguous United States.
