Renthal Ultralight Rear Sprocket - Honda CRF 250 450 - 51T
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Product Information
Full details
This guide is for motocross and enduro riders seeking to enhance their motorcycle's performance. The Renthal Ultralight Rear Sprocket offers significant weight savings and improved durability through its 7075 T6 aluminum construction and hard-anodized finish. A key benefit is its contribution to increased power output and longevity, though it requires specific chain alignment for optimal performance.
All features
| Model Part Number | 154U-520-51GRHA |
|---|---|
| Brand | Renthal |
Extended Product Information
FAQs
What is the main benefit of the Ultralight Rear Sprocket?
The primary benefit is significant weight reduction, which improves acceleration and overall motorcycle agility. The hard-anodized finish also increases durability and resistance to wear.
How does the hard-anodized finish improve performance?
The hard-anodized finish creates a much harder surface on the aluminum, greatly increasing its resistance to wear and abrasion from the chain, thus extending the sprocket's lifespan.
Is this sprocket compatible with all Honda models?
No, this specific 51T sprocket is designed for a particular range of Honda CR, CRF, and XR models listed in the compatibility section. Always verify fitment for your exact motorcycle year and model.
How often should I clean the sprocket?
It is recommended to clean the sprocket, chain, and front sprocket regularly, especially after riding in muddy or dusty conditions, to ensure optimal performance and longevity.
Can I use this sprocket with any chain?
While it is designed to work with standard motorcycle chains, it is best to use it with a high-quality, compatible chain (refer to your motorcycle's service manual for specifications) and ensure proper alignment.
What does '51T' mean?
'51T' refers to the number of teeth on the sprocket, which is 51 in this case. A higher tooth count generally results in lower gearing, providing more acceleration at the expense of top speed.
Troubleshooting
Premature wear on sprocket teeth
Ensure the chain and sprockets are kept clean and properly lubricated. Verify correct chain tension and alignment. Check for any debris caught between the sprocket and the hub.
Chain skipping on sprocket
Check chain and sprocket condition for excessive wear. Inspect for bent or damaged teeth. Ensure correct chain tension; too loose or too tight can cause skipping. Verify that the sprocket is securely fastened to the hub.
Noise during operation
Clean the drivetrain thoroughly. Check for proper chain alignment and ensure the sprocket is not warped or damaged. Worn chain or countershaft sprocket can also cause noise.
Pros and Cons
Pros
- Significant weight reduction compared to stock sprockets.
- Increased resistance to wear and tear due to hard-anodized finish.
- Improved mud shedding capabilities for consistent performance.
- Contributes to better acceleration and overall power transfer.
- Durable construction suitable for aggressive riding.
Cons
- May require precise chain adjustment for optimal function.
- Potentially shorter lifespan than steel sprockets under extreme conditions.
- Higher initial cost compared to standard aluminum sprockets.
Setup, Compatibility & Care
Compatibility: This specific Renthal Ultralight Rear Sprocket (51T) is designed for a range of Honda motocross and enduro motorcycles. Please verify fitment for your specific model and year before installation. Key compatible models include:
- Honda CR 125 (1983-2007)
- Honda CR 250 (1984-2007)
- Honda CR 500 (1993-2001)
- Honda CRF250R (2004-2024)
- Honda CRF450R (2002-2024)
- Honda CRF250X (2004-2019)
- Honda CRF450X (2005-2024)
- Honda CRF250RX (2019-2024)
- Honda CRF450RX (2017-2024)
- Honda XR 250 (1998-2011)
Setup: Installation should be performed by a qualified mechanic or an experienced individual following the motorcycle manufacturer's service manual. Ensure the new sprocket is correctly aligned with the front sprocket and chain. Proper chain tension is critical for longevity and performance.
Care: Regularly clean the sprocket, chain, and front sprocket assembly with a suitable degreaser and brush. Inspect for wear, damage, or debris. Lubricate the chain according to the chain manufacturer's recommendations. Avoid aggressive cleaning methods that could damage the hard-anodized finish.