CHAINRING BOX COSINE 104mm 38T 4B BK
- 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
- 38T
- 6061AL
- 3/32
- Black
- 1sp
- Standard