Renthal Ultralight Rear Sprocket - 48T - Green
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Product Information
Full details
The Renthal Ultralight Rear Sprocket is designed for motocross and enduro riders who demand professional-grade power delivery and reduced machine weight. By utilizing high-strength 7075 T651 alloy, this sprocket delivers a significant 66% weight reduction over steel counterparts, leading to improved acceleration and handling; however, riders should note that aluminum sprockets generally require more frequent inspection for wear compared to heavy-duty steel options.
All features
| Model Part Number | 112U-520-48GEGN |
|---|---|
| Brand | Renthal |
Extended Product Information
FAQs
Is this sprocket suitable for road use?
This sprocket is specifically engineered for motocross and enduro racing applications and is not recommended for street use.
Why is the sprocket made of aluminum instead of steel?
Aluminum provides a significant weight advantage over steel, which reduces unsprung weight and rotating inertia, leading to better suspension performance and acceleration.
Will this fit my Suzuki RM-Z250?
Yes, this model is compatible with the 2004-2006 Suzuki RM-Z250 models.
How often should I replace this sprocket?
You should inspect your sprocket for wear every few rides. It is best practice to replace the sprocket whenever you install a new chain to prevent premature failure.
Can I use this with any brand of chain?
Yes, but for the best performance and longevity, it is recommended to pair it with a high-quality Renthal drive chain.
Troubleshooting
Rapid tooth wear
Check chain tension and alignment. Excessive slack or misalignment can cause the chain to grind against the sprocket teeth prematurely.
Sprocket bolts coming loose
Ensure bolts are torqued to factory specifications and apply a thread-locking compound if recommended by your bike's service manual.
Pros and Cons
Pros
- Significantly reduces unsprung mass for sharper handling
- Enhanced acceleration due to reduced rotating inertia
- High-strength material provides reliable performance for racing
- Precision-engineered tooth profile extends chain life
Cons
- Shorter service life than comparable steel sprockets
- Requires more frequent tension checks during the break-in period
- Limited to off-road performance applications
Setup, Compatibility & Care
This sprocket is compatible with a wide range of Kawasaki models, spanning from the classic KX 125/250 (1980-2008) to modern fuel-injected KXF 250/450 (2004-2024), as well as the Suzuki RM-Z250 (2004-2006).
Installation Tips:
- Ensure the wheel hub mounting surface is clean and free of debris before installation.
- Always use a torque wrench to tighten the sprocket bolts to the manufacturer's recommended specifications.
- Verify that the chain is correctly aligned and set to the proper tension after installation.
Care Instructions:
- Regularly inspect the teeth for signs of hooking or excessive wear.
- Keep the chain properly lubricated to reduce abrasive wear on the aluminum teeth.
- Replace the sprocket whenever you replace the chain to ensure even wear patterns.