Dr. Pulley
Dr. Pulley Over-Range Variator Kit: Yamaha 2T Minarelli
SKU 1200-1184
$102.00
/
Shipping calculated at checkout.
Description
Maximum Drive: Dr. Pulley Over-Range Performance Variator
Push your top speed and acceleration to the limit with the Dr. Pulley Over-Range Variator Kit. Designed for the serious enthusiast, this "Over-Range" system features an oversized 94mm pulley diameter and re-engineered ramp angles. This allows your drive belt to travel further than the factory variator permits, effectively giving your 2-stroke Minarelli engine a wider gear ratio for explosive take-offs and a significantly higher top-end cruising speed.
Technical Performance Features
- Oversized 94mm Face: Larger diameter than stock variators, providing a greater surface area for the belt to travel higher, resulting in increased top-end velocity.
- Extended Ramp Geometry: Optimized for use with high-performance sliding weights, allowing for a smoother, more linear power band without the "dead spots" common in OEM units.
- Complete Tuning Kit: Includes the variator boss, backing plate with sliders, drive face, and precision spacers to ensure perfect alignment and belt tracking.
- High-Heat Dissipation: Constructed from a lightweight, high-strength alloy designed to maintain consistent friction levels and prevent belt slip during aggressive riding.
Comprehensive Fitment Guide
This 13mm spline variator is designed for 50cc 2-Stroke Minarelli (1PE40QMB/Jog) engines:
| Brand / Engine | Compatible Model Series |
|---|---|
| Yamaha | Zuma 50 (Pre-2012), Jog 50, Vino 50 |
| Adly / Hammerhead | Fox 50, Jet 50, Muddy Bug 50 |
| Crank Specs | Fits 13mm Crankshaft / 17-Tooth Spline |
Technical Specifications
- Pulley Outer Diameter: 94mm
- Inner Diameter (Boss): 18mm
- Crankshaft Spline: 13mm (17-Tooth)
- Kit Includes: Variator, Drive Face, Back Plate, Sliders, and Spacers
Mechanic's Note: This is an "Over-Range" kit, meaning it is physically larger than your stock variator.
Installation Tip: Because of the 94mm diameter, ensure your Starter Bendix and crankcase have enough clearance; some minor material removal from the case may be required on specific clones.
Pro Tip: To get the most out of this kit, pair it with Dr. Pulley Sliding Weights and a fresh Kevlar Drive Belt to handle the increased gear range!
SKU: 1200-1111
Vendor: Dr. Pulley
Product Diagrams
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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.
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