This kit allows you to convert your Neo or Neo Ultimate front hub to a traditional 100mm quick release. The kit includes two SealLock end caps and our aluminum quick-release skewer. SealLock end caps feature a low-friction U-cup seal that snaps into place and stays secure even when your wheel is removed from your bike. Not compatible with Centerlock hubs, Boost 110mm hubs, or OS (20mm through axle) hubs.