With this mod you'll be able to install a 190x51mm shock but the Epic only has clearance for shocks with small diameter air cans

be it for protection

with a vehicle that accepts a 2" square hitch

Chamois material: None

Thule VeloCompact 4th Bike Adapter Ignore Wholesale Tier 2 Brand Rule With this mod you'll beIf you already have one of the Thule VeloCompact 926 or 927, 2 bike or 3 bike carriers, you can increase your capacity by one bike with this handy add on. The 4th bike adapter clamps securely to the outermost wheel support platform on your existing VeloCompact carrier and provides the same wheel support platform and ratcheting wheel straps as the VeloCompact carrier with the addition of a small, double headed clamping arm that supports your 4th bike