ROTOR Chainring Q-Ring Direct Mount for SRAM BB30 Crank
To reduce the system weight on the bike, the legendary rotor Q-Ring is now also available in a direct mount version for SRAM BB30 mountain bike cranks . The sophisticated ovalization of the Q-Rings increase performance through driveline variation and drag optimization. When pedaling with the legs, the natural strengths and weaknesses are reconciled. Thus, a better use of the stronger muscle groups is achieved and in the weaker muscles a balance in the working path (lower stroke) created. There are 3 different adjustments of the chainrings possible to create an optimum of performance for the biker.
The chainrings also have specially shaped teeth that prevent the chain from jumping off. In conjunction with a Sram Type2 or Shimano Shadow + rear derailleur, which have a greatly increased bias of the cage, the chain is reliably held in position even without chain guide.
intended use : MTB
Technology: Narrow Wide, OCP
Attachment: Direct Mount
Number of teeth: 30, 32 or 34
Compatibility cranks : SRAM BB30 with short shaft
Compatibility Chain: 9x, 10-speed , 11-speed or 12-speed (SRAM Eagle)
Offset: 0 mm; for 142 mm standard rear hubs
Ovalization: 12.5%, position adjustable in 5 ° increments (3 positions)
Weight: 71g (30 teeth)
Scope of delivery: 1x chainring