ABSOLUTE BLACK chainring oval 1-way narrow-wide LK 76 rotor Rex crank | Black 30 teeth
The best chainrings for Race Face RCA cranks on the market. Absolute Black chainrings are CNC machined from billet aluminum and then anodized, the result: an extremely rigid and durable chainring. They were developed for a 1 x 9, 1 x 10, 1 x 11 or 1x12 (Eagle) drive. The chainrings have special teeth that prevent the chain may come off prematurely. The principle follows that of SRAM chainrings with X-Sync teeth.
The ovalization of the rear sprocket also boosts performance by variation in the drive train and optimizing the resistance. When contact with the legs, the natural strengths and weaknesses to be reconciled. To make better use of the stronger muscle groups is achieved, creating a balance in the working path (lower hub) in the weaker muscles.
The chainring for rotor Rex cranks is only compatible with the rotor's 76 mm 1-fold Spider.
intended use : MTB
Material: Aluminium 7075 Txxx
Technology: Narrow Wide
bolt circle diameter : 76 mm, asymmetrical (only for rotor Rex cranks )
Fixing: 4 Arm Spider
Number of teeth: 30
Compatibility cranks : Rotor Rex cranks
Compatibility chain: 10-speed , 11-speed or 12-speed (SRAM Eagle)
chain line : 52 mm
Ovalization: 10.2 to 14.4%, maximum diameter at 110.5 to 116.3 ° crank position after top dead center (for each chainring size optimized)
Delivery: 1x chainring