Ogio - Hammers 2L Hydration Pack K-Type-Gas or Oil Tank Caps 1-1/4" - 1-1/2" clamps fit

1-1/4" - 1-1/2" clamps fit all Sportster

2014 - 2019 KTM 1290 Super Duke

Maximum Width = 3

remove the o-ring and install the insert to make sure that it fits all the way in

Ogio - Hammers 2L Hydration Pack K-Type-Gas or Oil Tank Caps 1-1/4" - 1-1/2" clamps fitThe Hammers 2 Litre hydration pack features an ergonomic fit and streamlined design. A great pack for a quick trail ride or hike. Features: Dedicated Anti Sloshing hydration bladder compartment with hook & loop secure strap for holding bladder in place and tube channel port Insulated Cooler Fabric lining that keeps liquid cold for 30% longer Front compartment with mesh ventilation for accessories Ergonomic padded back with directional air flow Multi