- BX211R, BX212R, and MTR12 freehub bodies are all compatible.
- BX106R and RAR12 freehub bodies are all compatible
- BI4502 and BI4515 will need BI4520 if converting from HG, campy, or XD/XDR driver bodies
Today's Stock Status
7 Available to ship in 2-4 Business Days
UPC: Not available
EAN: Not available
Manufacturer Part Number: MICROSPLINE SPACER
BI4520
161306-Q0-L