Dr. Pulley HiT Clutch for Minarelli / Yamaha 2T – 50°
Dr. Pulley HiT Clutch for Minarelli / Yamaha 2T – 50°
$300.60
3 in stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
Orders placed by 1pm EST on weekdays ship the same day.
Product Details
Description
Dr. Pulley HiT Clutch for Minarelli / Yamaha 2T – 50°
Replacement Part Details
Use this part when the original component is worn, damaged, missing, or no longer working correctly. Many scooter parts can look similar but use different sizes, plugs, brackets, thread patterns, or mounting styles, so careful comparison before purchase is recommended.
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: Minarelli, 2-Stroke
- Fits Models / Common Applications: Yamaha and other compatible models may apply.
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Will this fit a Yamaha?
A: This SKU is listed with Yamaha model fitment where the scooter also matches the listed engine or fitment notes.
Q: Is this for Minarelli scooters?
A: This SKU is listed with Minarelli engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 2.6 lbs |
|---|---|
| Dimensions | 6 × 4 × 2.1 in |
Race-Ready Engagement: Dr. Pulley HiT Clutch (50 ° Version)
Eliminate transmission lag and maximize power delivery with the Dr. Pulley HiT (High Torque) Clutch. This 50-degree version is specifically engineered for racing applications and highly modified 2-stroke Minarelli engines. By utilizing a patented internal wedge mechanism, the HiT system locks the clutch shoes against the bell as RPMs rise, ensuring zero slippage and instant power transfer that traditional centrifugal clutches simply cannot achieve.
Technical Performance Features
- 50-Degree Pillow Springs: Specifically tuned for high-revving engines, allowing the clutch to stay disengaged until the engine reaches its peak power band for explosive "hole-shot" starts.
- Patented HiT Lock-Up: Features an internal wedge that increases pressure on the bell under load, preventing the "clutch fade" and glazing common in high-heat racing scenarios.
- Precision High-Flow Bell: The included 105mm clutch bell is balanced for high-RPM stability and features oversized cooling vents to maintain consistent friction levels.
- Pro-Tuning Kit: Includes 3 sets of pillow springs and 6 sets of clutch springs, giving you the ability to customize engagement to match your specific exhaust and cylinder porting.
Comprehensive Fitment Guide
This 105mm performance assembly is a direct fit for 50cc 2-Stroke Minarelli (1PE40QMB/Jog) engines used in scooters and high-performance ATVs:
| Brand / Engine | Compatible Model Series |
|---|---|
| Yamaha | Zuma 50 (Pre-2012), Jog 50, Vino 50, CT 50 |
| Minarelli Clones | Adly, Hammerhead, Keeway, Vento (1PE40QMB) |
| Performance ATV | Polaris Scrambler 50, Various 2T 50cc-90cc Race Quads |
| Important Note | Designed for **Modified** cylinders (70cc+ Mid-Race/Pro kits). |
Technical Specifications
- Bell Inner Diameter: 105mm
- Spline Count: 16 Splines (Standard Minarelli)
- Pillow Spring Angle: 50 Degrees (High-RPM Engagement)
- Components: HiT Clutch, Vented Bell, Multiple Tuning Spring Sets
Mechanic's Note: The 50-degree HiT clutch is a serious piece of racing hardware. Performance parts are not covered by warranty.
Setup Tip: This version is intended for engines that need to "scream" before moving; if your bike is stock or has a mild "Street" kit, you may prefer the 60-degree version for smoother city riding.
Pro Tip: When installing, ensure your Clutch Nut is torqued to factory specs
SKU: 169-220
