12″ length (eye to eye). 450 lbs. load compression to 2″. 12 mm ID eyes. Upgrade your old shocks with a replacement set of two 12″ adjustable shocks for go-karts and dirt bikes Upgrade your old shocks with a replacement set of two 12″ adjustable shocks for go-karts and dirt bikes. Mounting a new set of shocks is more than just routine maintenance, it means a more comfortable ride. Bad shocks can damage tires or cause an abnormally jarring and rough ride. You can prevent these problems by replacing your damaged or worn out old shocks with these high-quality replacement adjustable shock sets for go-karts and mini bikes. These 12″ beauties are available in two size versions, the determining factor being the internal diameter (ID) of the mounting eyes. Shock absorbers in these sizes are compatible with a wide range of go-kart and mini bike models. Just determine the internal diameter (ID) size that you need for your go-kart or dirt bike and get ready for a smoother, less tooth-chattering,