The chainrings of Absolute Black are CNC machined from billet aluminum, creating the perfect combination of light weight and excellent durability for your bike. The oval shape smooths force peaks during the turn of the handle. Thereby you have, especially in the mountains, a smoother passage and the muscles tired less. The lower peak forces also reduce the burden on the knee.
The chainrings have special teeth that prevent the chain may come off. The principle follows that of SRAM XX1 chainrings. In conjunction with an SRAM or Shimano Shadow Type2 + derailleur, which have greatly increased bias of the cage, the chain is reliably held in place without chain guide.
intended use : Cyclocross
Material: Aluminium 7075 Txxx
Technology: Narrow Wide
bolt circle diameter : 110 mm
Mounting: 5-arm spider
Number of teeth: 38
Compatibility cranks : Shimano Dura-Ace 7900, 7950.7800, 6750 Ultegra, FSA, not compatible with SRAM Hidden Bolt cranks
Compatibility chain: 10-speed or 11-speed
Ovalization: 11.4%, maximum diameter at 110.5 ° crank position after top dead center
Weight: 63g (38 teeth, manufacturer information)
Delivery: 1x chainring