Manitou Swinger Expert air shock*, 2.25x7.875" 3-D forged and CNC machined: 43x49mm twin-tube air canister with a 10mm aluminum, internal damper shaft and MCU negative spring Sized by travel/stroke and eye-eye measurements (note: not guaranteed to fit range for all bikes check fit and travel before using) *15mm mounting hardware sets sold separately (2 mount sets required per shock: 1 for each eyelet) stroke: 2.25 in. (56cm) eye-eye: 7.875 in. (200mm)