Look, 39T, 11sp., BCD: 130mm, 5 Bolts, Inner Chainring, 3296

Description

* Made of heat treated hard anodized 7075 T6 aluminum* SPEED: 10 /11sp compatible. Shimano 10/11, Campy 10/11, SRAM 10* Recommended chain: KMC, Shimano, or Campy chain