Polini Evolution Clutch D.107 3 Weights - 249.062
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Product Information
Full details
The Polini Evolution D.107 3-mass clutch is designed for performance-minded riders and scooter enthusiasts looking to optimize their vehicle's power delivery and acceleration. This component offers a significantly sharper, more responsive transmission feel through its balanced three-mass design, making it an ideal upgrade for those seeking improved durability under load; however, it requires precise tuning to match the specific power band of your engine setup.
All features
| Model Part Number | 249.062 |
|---|---|
| Brand | Polini |
Extended Product Information
FAQs
Is this clutch compatible with a standard 105mm bell housing?
No, this clutch is specifically engineered for 107mm bell housings.
Does this clutch come with pre-installed springs?
Yes, it arrives with springs configured for standard high-performance use, though they can be tuned based on your engine's power band.
Can I use this on a completely stock engine?
While it will function, it is designed for performance applications and may provide aggressive engagement that is not ideal for daily commuting on stock setups.
How often should I inspect the clutch pads?
It is recommended to inspect the pads for wear every 2,000 to 3,000 miles, depending on riding intensity.
What is the weight of the unit?
The Polini Evolution D.107 weighs exactly 624 grams.
Troubleshooting
Slippage during initial acceleration
Check if the clutch springs are worn or if there is oil contamination on the bell housing.
Erratic engagement RPM
Inspect the weights for even movement and ensure the bell housing is not warped or heat-scored.
Pros and Cons
Pros
- Improved throttle response and acceleration
- Stable power delivery across the rev range
- Robust construction for increased engine longevity
- Precise 107mm engineering ensures reliable fitment
Cons
- Requires professional installation for best results
- May require additional spring tension adjustments for specific engines
- Not intended for stock engines without accompanying transmission tuning
Setup, Compatibility & Care
To ensure proper performance, ensure your clutch bell housing is compatible with the 107mm diameter specification. Installation should be handled using proper torque wrenches to secure the clutch nut to the manufacturer’s suggested settings.
Maintenance involves periodic inspection of the clutch pads for glazing or uneven wear. Clean the bell housing with brake cleaner regularly to remove dust buildup, which can cause erratic engagement. If the clutch begins to engage at inconsistent RPMs, check for debris or worn clutch springs that may need replacement to restore factory performance.