The durable e*thirteen Helix R chainring is CNC machined from high quality aluminum and available in different colors. The Narrow-Wide Design of the 4th generation prevents the chain from jumping off and reduces the noise while pedaling. Thanks to the 3-bolt design Direct Mount type, it is quickly and easily installed on compatible cranks with the same interface.
|Product Name:||e*thirteen Helix R Direct Mount Chainring | SRAM 11/12-Speed - 3mm Offset - bronze|
|shifting system:||11-speed, 12-speed|
|direct mount standard:||SRAM 3-Bolt|
|direct mount offset:||3mm (Boost)|
|chainring version:||Narrow-Wide (1-speed)|
|manufacturer item code:||CR4HRA-136 (28T) | CR4HRA-137 (30T) | CR4HRA-138 (32T) | CR4HRA-139 (34T)|