NINER SINGLESPEED BUILD KIT
- SIR 9(Boost), AIR 9 RDO(Boost), RLT 9 Steel, RLT 9 RDO, RLT 9, PF 30 AIR 9 alloy frames
BioCentric 30 – Black
No bolt on hubs. No chain tensioners. No brake adjustments due to gear changes.
Eliminates the need for adjustable dropouts, offering the cleanest possible solution for singlespeed use.
The sealed bottom bracket is integrated into the cups of the BioCentric 30 and is compatible with most 24mm spindle cranks. And if you run GXP cranks, a reducer is provided to ensure compatibility.
Frame compatibility: SIR 9 (Boost), AIR 9 RDO (Boost), RLT 9 Steel, RLT 9 RDO, RLT 9, PF 30 AIR 9 alloy frames
COGLICIOUS SS COG
Thick offset base protects alloy freehub bodies
Flipable to fine tune chainline
Available in 17, 18, 19, 20, 21, and 22 tooth sizes
Finding out My Perfect Charinring X Cog Combination