Osprey Seral 4 Mountain Bike Hydration Waist Pack Backcountry The hubs are compatible with

The hubs are compatible with 6 bolt brake rotors and is secured using quick release skewers

namely in the vertical compliance department

Pocket expands due to gusseted design

Grey skies

Lock-Up Cuff is an inner cuff that goes across the top of the foot and ankle for better heel hold while entry and exit from the boot is easy

Osprey Seral 4 Mountain Bike Hydration Waist Pack Backcountry The hubs are compatible withFor riders looking for a low profile lumbar pack with integrated hydration, 4 liter Seral is the perfect trail companion. This slim waist pack features the next gen 1. 5 liter Hydraulics reservoir with high strength magnetic coupling for improved hose management even in rough terrain and enough storage capacity for ride essentials, such as a spare tube, CO2 and multi tool and, of course, snacks. *Features * AirScape backpanel with contouring lumbar