Wolf Tooth Fat Paw Lock-on Grips - Black/RedWolf Tooth Fat Paw Lock on Grips Black Red. Fat Paw Lock On Grips bring the same texture and feel of the popular Fat Paw silicone foam grips to the lock on grip format. This means that they are comfortable easy to install and have excellent vibration damping qualities. The installed diameter of Fat Paw Lock On Grips is the same as the Fat Paw silicone foam bike grips at 36mm. They are compatible with all standard mountain bike handlebars. Grips are