Origin8's Thruster 104mm BCD 4-bolt chainrings are great for MTB, Boost, and Fat applications. Their Narrow/Wide tooth design provides chain retention on 1x systems, and they are 10, 11, or 12 speed compatible.
- Forged and hard anodized AL6061-T6 alloy construction
- BCD: 104mm 4-Bolt
- Type: 1x
- Chain Compatibility: 10/11/12s
- Tooth Type: Narrow/Wide
|104mm / Black / 34T / 10-12s||888571055489||211106||CHA39746400K|
|104mm / Black / 36T / 10-12s||888571055496||211107||CHA39453354K|