Onyx Racing Mountain 6 Bolt Hub - Rear Dropper Trigger The kit includes two Presta

The kit includes two Presta valve stems

the gravel is quite loose in places

more comfort and better cornering performance

because you don’t want to think an awful lot about your bottom bracket

Onyx Racing Mountain 6 Bolt Hub - Rear Dropper Trigger The kit includes two PrestaMachined to the tightest tolerances, Onyx hubs use sprag internals for strength, extremely low rolling resistance and infinite points of engagement. All Onyx hubs come standard with ceramic hybrid bearings so there is no need to upgrade. Made in USA. Ceramic hybrid bearings 7075 Aluminum Hub Shell Adjustable preload Titanium bolts Extremely low rolling resistance Silent instant engagement. Radial lacing is not permitted on any Onyx Racing Products