Drill Guide, Axle, and Freehub Kit

To either update/replace your existing 45T V1 (straight spline) Freehub and update to V1.2 (adjustable preload collar) axle, or swap from one freehub system to a different one (ie, Shimano to SRAM, etc) Bundle includes a drill guide, V1.2 axle kit, and a 60T V1 compatible freehub body and ratchet. You can purchase the same freehub body as you currently have to simply upgrade, or purchase a different freehub body to swap over to Shimano/SRAM if converting.