Best selling one-piece replacement brake block with a threaded stud fitting featuring the proven Aztec water & dirt clearing grooves on the pads braking surface maintaining performance even in the most adverse conditions. Replacement Kevlar Plus compound one-piece V-brake blocks. Rim Rake tip removes debris from rim before main pad makes contact Kevlar enhanced compound increases power & reduces wear rate CAD tread pattern ensures maximum contact area for consistent braking performance in all weather conditions