Onyx Freehub Driver Assembly - HG11 Alloy MFPN=K13-4506W-31.8-BLK Features a weight saving 4-bolt

Features a weight saving 4-bolt design with a BCD of 110 mm Ring Position/Type Inner Tooth Count 39 Drivetrain Speeds 11 Chainring BCD 110 Shimano Asymmetric Color Black Defined Color Black keyword search Y1P439000 Combination 39/53T

The Wolf Tooth crown race adapter will help avoid damaging the crown race seals

Model RXF38 Description Coil Preload Adjuster Cap

Devinci models: Chainsaw Spartan Chainguide Mount Type ISCG-05 Material Composite Max Tooth (teeth) 32 Color Black Defined Color Black Chainring Size 30-32T

Onyx Freehub Driver Assembly - HG11 Alloy MFPN=K13-4506W-31.8-BLK Features a weight saving 4-boltFreehub Driver Assemblies for replacement or repair of Onyx hubs. Compatible with Vesper and MFU equipped Classic model hubs Sealed cartridge bearings Freehub Type HG11 Material Alloy