Restore your scooter's acceleration and top-end speed with the Mitsuboshi 738x18x30 Drive Belt. As a premier global manufacturer founded in Kobe, Japan, Mitsuboshi is the trusted OEM provider for many of the world's leading scooter brands. This belt is specifically engineered for high-revving 2-stroke 50cc long-case engines, providing the exact dimensions and grip required for smooth, reliable CVT operation.
Technical Performance Features
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Precision Japanese Engineering: Manufactured by Mitsuboshi (founded 1919) — the "Three Stars" philosophy ensures high precision and performance.
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Exact OEM Dimensions: 738mm x 18mm x 30°, ensuring your variator and clutch pulleys achieve their full range of travel.
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Advanced EPDM Construction: High-tensile cords and heat-resistant compounds prevent belt stretch and glazing.
Comprehensive Fitment Guide
This 738-18-30 belt is a direct-fit replacement for the following 50cc 2-stroke models:
| Brand |
Compatible Models |
| Genuine |
Roughhouse 50 (All), Rattler 50, Black Cat 50 |
| Yamaha |
Zuma 50 (1997–2009), Jog / Jog R, BW's 50 |
| Aprilia |
Scarabeo 50 Street, SR50 (Air-Cooled Minarelli Models) |
| Malaguti |
F12 Phantom, F15 Firefox, Yesterday 50 |
| Adly |
Silver Fox 50, Gatecrasher 50 |
Features
- OEM-spec Mitsuboshi quality — trusted by major scooter brands worldwide
- Exact dimensions: 738mm x 18mm x 30° for full variator travel
- Advanced EPDM construction with high-tensile cords
- Heat-resistant compounds prevent stretch and glazing
- Direct-fit for long-case Minarelli and PGO 2-stroke 50cc engines
Specifications
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Length: 738mm
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Width: 18mm
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Angle: 30 degrees
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Engine Type: Long-case Minarelli / PGO 2-stroke 50cc
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Manufacturer: Mitsuboshi (Japan)
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MPN: MBL
Mechanic's Note: This belt size is the standard for long-case Minarelli and PGO 2-stroke engines. If your scooter has lost top speed or feels sluggish off the line, your belt has likely worn down in width. Always clean your pulleys with brake cleaner before installation to ensure maximum grip.
California Prop 65 Warning: www.p65warnings.ca.gov
Model Fitment
Genuine Roughhouse 50 (all years), Rattler 50, Black Cat 50 | Yamaha Zuma 50 (1997-2009), Jog, Jog R, BW's 50 | PGO Big Max 50, Metro 50, My Bubu 50 | Aprilia Scarabeo 50 Street, SR50 (air-cooled Minarelli) | Malaguti F12 Phantom, F15 Firefox, Yesterday 50 | Adly Silver Fox 50, Gatecrasher 50
