•  Part # 210908
  •  Model : BOX COMPONENTS Cosine Chainring
  •  Supplier Part # BX-CR144B39T-BK
  •  CHAINRING BOX COSINE 104mm 39T 4B BK
  • Price: $49.99

      Quantity:
    •  Made in the USA from 6061-T6 aluminum alloy, Cosine Chainrings are round and true
    •  They fit 104 BCD four-bolt cranks and are available in black anodized with laser-etched graphics from 38 to 45-teeth
    •  104mm 4-bolt
    •  39T
    •  6061AL
    •  11749
    •  Black
    •  1sp
    •  Standard