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Tweeks Cycles£35.99Visit shop SRAM Eagle XX DH X-Sync 2 T-Type Aluminium Chainring - -4mm30T
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The SRAM Eagle XX DH T-Type chainring is designed for downhill racers and aggressive mountain bikers who demand maximum drivetrain reliability and chain security under extreme conditions. By utilizing a reinforced aluminum structure and the proven X-SYNC 2 narrow-wide tooth profile, this component ensures precise chain retention and efficient power transfer, though it is specifically engineered for 8-bolt crank interfaces, which may limit compatibility with older or non-DH specific drivetrain setups.
| Model Part Number | CW8079007 |
|---|---|
| Brand | SRAM |
This chainring is optimized for SRAM Eagle chains; using chains from other manufacturers may result in sub-optimal shifting and increased wear.
While it can function on other bikes, it is specifically designed with the strength and geometry requirements of downhill racing in mind.
The 8-bolt interface provides a more secure, rigid connection to the crank arm, reducing flex under the high loads experienced during downhill riding.
You will need the appropriate T-25 or specific bolt-pattern tool recommended by the SRAM crank manufacturer to secure the 8 bolts.
Look for significant thinning or 'shark-fin' shaping on the teeth, which indicates that the ring is no longer providing optimal chain retention.
Check that the chain is correctly seated on the narrow-wide profile and verify that the 8-bolt mounting interface is torqued correctly.
Ensure the derailleur clutch is engaged and verify that the chain length is correct for your specific frame travel and chainring size.
Installation requires a compatible 8-bolt crank interface; ensure your crankset supports this standard before beginning. Always use a clean, dry cloth to wipe away debris from the mounting surface before installation. When tightening the bolts, follow a star-pattern sequence to ensure even distribution of force. For maintenance, regularly inspect the teeth for signs of wear, particularly the characteristic 'hooking' of the teeth, and keep the chainring free of excess mud or grit to prolong the life of both your chain and the ring itself. Always use a fresh chain when installing a new ring to ensure optimal wear-in.
