Evoc Ride 12L +2L Bladder Hydration Pack - Chilli Red - Carbon Grey PLP|Riding Style Measurements: There is a 12mm

Measurements: There is a 12mm radius from the center of the hanger bolt to the edge is the mounting face

Cons: Won't work on pedals with a large platform

and reduced spring and chain tension in the low gears will reduce wear and tear and strain on the components

Pros: Not too wide

Evoc Ride 12L +2L Bladder Hydration Pack - Chilli Red - Carbon Grey PLP|Riding Style Measurements: There is a 12mmConvenient companion. The versatile all rounder with wide hip wings for the perfect fit is made for biking, but just as great for school, uni or your daily routine. Hydration Bladder 2 included Comfortable, well ventilated air pad back padding Internal tool compartment with organiser functionality Exterior transport flap for your bike helmet Hydration system compartment up to 3L