Oxford MTB Alloy - 104BCD - Black
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www.sprocketandgear.co.ukOxford Black Mtb Alloy - 104Bcd
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Product Information
Full details
The Oxford MTB Alloy 104BCD chainring is for mountain bikers using single front chainring setups seeking improved chain retention on rough trails. Its primary benefit is the narrow/wide tooth profile, significantly reducing chain drops. A minor caveat is its specific 104 BCD compatibility, requiring users to ensure their crankset matches. This durable 6061 aluminium chainring is CNC machined for precision and is compatible with 9 to 12-speed drivetrains.
All features
| Brand | Oxford |
|---|
Extended Product Information
FAQs
What is a 104 BCD?
BCD stands for Bolt Circle Diameter. 104mm is a common standard for mountain bike cranksets, referring to the diameter of the circle on which the chainring mounting bolts are positioned.
Do I need a special chain for this chainring?
No, this chainring is compatible with standard 9, 10, 11, and 12-speed chains. The narrow/wide profile is designed to accommodate the different widths of these chains.
Can I use this on a double or triple crankset?
No, this chainring is specifically designed for single (1x) front chainring setups.
How do I know if my crankset has a 104 BCD?
You can measure the distance between the centers of two adjacent crank bolts and then multiply by a factor based on the number of bolts (for 4-bolt, it's approximately 1.701). Alternatively, check your crankset manufacturer's specifications or look for markings on the crank spider.
Will this chainring work with my 11-speed drivetrain?
Yes, the Oxford MTB Alloy chainring is compatible with 9, 10, 11, and 12-speed drivetrains.
Is a clutch rear derailleur necessary?
While not strictly necessary, a clutch rear derailleur is highly recommended for optimal chain retention and to minimize chain noise and slap, especially on rough terrain.
Troubleshooting
Chain dropping frequently
Ensure the narrow/wide teeth are correctly engaging the chain. Consider adding a clutch rear derailleur or a chain guide for enhanced security. Verify chain length is appropriate.
Chainring does not fit crankset
Confirm that your crankset has a 104mm BCD. This chainring is not compatible with other BCD sizes.
Excessive chain noise
Check chainring alignment and ensure it's securely bolted. A clutch rear derailleur can help reduce chain slap and noise. Ensure the chain is clean and lubricated.
Pros and Cons
Pros
- Excellent chain retention due to narrow/wide profile
- Durable and lightweight 6061 aluminium construction
- Precise fit thanks to CNC machining
- Wide compatibility with 9-12 speed systems
- Reduces the risk of chain drops on technical terrain
Cons
- Only compatible with 104 BCD cranksets
- Designed exclusively for single chainring setups
- May require a clutch-style rear derailleur for optimal chain security
Setup, Compatibility & Care
Setup: Ensure your crankset uses a 104 BCD. Remove your old chainring and install the Oxford chainring using appropriate crank bolts and a torque wrench to manufacturer specifications. For optimal performance, it is recommended to use this chainring with a clutch-style rear derailleur and potentially a chain retention device if you experience persistent chain noise or drops.
Compatibility: This chainring is designed for 1x (single front chainring) drivetrains and is compatible with 9, 10, 11, and 12-speed chains. It requires a crankset with a 104mm Bolt Circle Diameter (BCD).
Care: Clean the chainring regularly with a degreaser and a brush to remove dirt and grime. Inspect teeth for wear; replace the chainring if significant wear or damage is observed. Avoid abrasive cleaners that could damage the finish.