OSPREY Seral 4 - With Reservoir hydration Attaches to frame with (1)

Attaches to frame with (1) M8 Chainring Bolt

MODERN MOUNTAIN BIKE TRAILS ARE FUN

and back of the head

Inverted Tread Design Reduces Rolling Resistance Enabling Greater Straightline Speeds

OSPREY Seral 4 - With Reservoir hydration Attaches to frame with (1)For 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. AirScape backpanel with contouring lumbar wrap provides