Details
Made in the US from 6061-T6 aluminum alloy, Box Two 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.
Part Numbers
| Option | UPC | MPN |
|---|---|---|
| Black / 39T | 639266089841 | BX-CR144B39T-BK |
| Black / 41T | 639266089865 | BX-CR144B41T-BK |
| Black / 43T | 639266089889 | BX-CR144B43T-BK |
| Black / 45T | 639266089902 | BX-CR144B45T-BK |
