The chainrings of Absolute Black are CNC machined from billet aluminum and then anodized. This ensures a rigid and durable chainring. They were developed for a 1 x 10, 1 x 11 and 1x12 (SRAM Eagle) drives. The chainrings have special teeth that prevent the chain may come off. The principle follows that of SRAM XX1 chainrings. In conjunction with a Sram or Shimano Shadow Type2 + derailleur, which have greatly increased bias of the cage, the chain is reliably held in place without chain guide.
The ovalization of the rear sprocket increases 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.
intended use : MTB
Material: Aluminium 7075 Txxx
Technology: Narrow Wide
bolt circle diameter : 94 mm
Mounting: 4-arm spider
Number of teeth: 30, 32 or 34 teeth
Compatibility cranks : Sram X01, X1, GX and all other 4-arm cranks with 94mm bolt circle diameter
Compatibility chain: 10-speed , 11-speed or 12-speed (SRAM Eagle)
chain line : 46 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)
Weights (manufacturer): 43g (30 teeth), 48g (32 teeth), 55g (34 teeth)
Delivery: 1x chainring