BLUE LINE
Blue Line 669-18-30 CVT Drive Belt - 139QMB 50cc Scooters
Description
This Blue Line 669-18-30 CVT Drive Belt is a replacement belt for 139QMB short-case 50cc 4-stroke scooters with 10-inch wheels, including the CSC Go, Go MAX, Pug 50, Nitro Sport 50, and Bella Classic 50. The 139QMB is based on the Honda GY6 design. The belt has aramid cord reinforcement and a nylon-faced cogged underside for strength, heat resistance, and quieter running. Replace yours if it's cracked, glazed, frayed, or snapped.
Key Features
- Aramid cord reinforcement: Built for strength and heat resistance.
- Cogged design: Nylon-faced teeth help it run quieter and flex more easily.
- Chloroprene rubber core: Durable and wear resistant.
- Direct fit: The 669-18-30 size fits short-case 139QMB engines.
Technical Specifications
- Part number: 1200-1187
- Belt size: 669-18-30
- Circumference: 669mm
- Width: 18mm
- Angle: 30°
- Construction: Aramid cord, chloroprene rubber, nylon tooth fabric
- Country of origin: China
- Brand: Blue Line
Compatibility
| Brand / Engine | Models / Engine Codes |
|---|---|
| CSC (Chicago Scooter Company) | Go, Go MAX, Pug 50, Nitro Sport 50, Bella Classic 50 |
| 139QMB / 139QMA short-case 50cc (based on Honda GY6) | 139QMA, 139QMB, 1P39QMB, 1P39QMA-2, YN139QMB, JJ1P39QMB, BD1P39QMB, BN139QMB |
Check the belt size printed on your old belt before ordering. Long-case 139QMB engines with 12-inch wheels use a longer belt (729mm).
Product Diagrams
Features
Specifications
Part Number: 1200-1187 | Size: 669-18-30 | Circumference: 669mm | Width: 18mm | Angle: 30° | Construction: Aramid cord, chloroprene rubber, nylon tooth fabric | Origin: China | Brand: Blue Line
Model Fitments
CSC Go, Go MAX, Pug 50, Nitro Sport 50, Bella Classic 50, and short-case 139QMB/139QMA 50cc 4-stroke scooters with 10in wheels. Check your belt size (669-18-30).
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Same day shipping for orders placed before 2PM (CST) M-F
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30-day return period on eligible items
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Flat-rate shipping for orders shipped to the 48 Contiguous United States.
