7075 aluminium, CNC machined

Hard anodized finish for ultimate endurance

Exclusive OCP system allows independent chainring optimalisation for every bike and cyclist

Available set:
  54 Aero (Black or silver) -42/40
  53/52/50-39 (53 Aero-39 black available)
  53/52/50-40-30 triple
Weight: 159 g (double set)