XDR Driver w/12x142/148/157mm TA End Cap

- Freehub bodies for WTB's Frequency hub, found on Proterra and CZR wheels\n- 1.8mm spacer is included with XDR and HG11 road FH bodies\n- HG 11sp road FH body requires the 1.8mm spacer for use with Shimano/SRAM 8-11sp HG mountain cassettes\n- XDR driver requires the 1.8mm spacer for use with XD cassettes\n- Third party online sales are strictly prohibited by manufacturer