Renthal Motorcycle Rear Grooved Sprocket - 415-40P-OR
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Product Information
Full details
The Renthal Motorcycle Rear Grooved Sprocket is designed for competitive racers and enthusiasts who demand maximum power transfer and reduced unsprung weight. By utilizing precision CNC machining and advanced materials, this sprocket delivers a significant 66% weight reduction compared to standard steel alternatives, improving both acceleration and braking performance; however, users should note that the lightweight aluminum construction may require more frequent inspection for wear compared to heavier, non-performance steel sprockets.
All features
| Model Part Number | 480--415-40P-OR |
|---|---|
| Brand | Renthal |
Extended Product Information
FAQs
Does this sprocket come with mounting hardware?
No, the sprocket is sold individually and does not include mounting bolts. It is recommended to use fresh, high-strength bolts during installation.
Can I use this on a street bike for daily riding?
While it can technically be fitted, this is a racing component. It will wear out much faster than a standard steel sprocket, making it less practical for high-mileage street use.
How do I know if the sprocket is compatible with my bike?
You must check the pitch (e.g., 415) and tooth count requested by your specific motorcycle model's drivetrain requirements.
Why is the weight reduction important?
Reducing unsprung and revolving weight helps the suspension react faster to bumps and allows the engine to rev up more quickly, improving overall performance.
Is the orange color purely cosmetic?
The finish is a high-quality anodized coating which provides both a signature look and an additional layer of protection against corrosion.
Troubleshooting
Visible wear or hooking on the teeth
The sprocket has reached the end of its service life and must be replaced immediately to prevent chain snapping.
Excessive chain noise or vibration
Check that the sprocket is perfectly centered and the chain tension is adjusted to the manufacturer's specified slack.
Sprocket bolts coming loose
Ensure you are using the correct torque values and applying medium-strength thread locker to the mounting hardware.
Pros and Cons
Pros
- Drastic reduction in unsprung revolving weight
- Improved acceleration and braking responsiveness
- High-precision engineering for maximum power delivery
- Durable construction suitable for competitive racing environments
Cons
- Requires more frequent inspection due to aluminum wear characteristics
- Generally shorter lifespan compared to heavy-duty steel sprockets
- Not intended for high-mileage daily commuting or touring
Setup, Compatibility & Care
Proper installation is critical to extracting the life out of your Renthal sprocket. Always ensure the mounting bolts are torqued to your motorcycle manufacturer's factory specifications and utilize a thread-locking compound where recommended.
Compatibility Note: This sprocket is specifically designed for 415 pitch chains. Confirm your motorcycle's current chain pitch before purchase, as mismatching pitch will result in immediate damage to both the chain and the sprocket.
Care Instructions:
- Regularly clean the sprocket of mud, grit, and debris that can accelerate tooth wear.
- Apply a high-quality motorcycle chain lubricant specifically designed for racing applications.
- Inspect the sprocket teeth after every three or four race days; look for 'hooking' or thinning of the teeth which indicates that replacement is necessary.