G-made 21607 XD Aeration Shock, 85mm Use Gmade replacement parts and hop-ups to get the most out of your RC vehicle Made from high quality materials for long lasting performance Measures length (Mounting hole to hole): 85mm Fits 1/10 scale crawlers and trucks; 1/10 scale Short course trucks (such as Tamiya F350 High-lift; Traxxas 2WD slash front) Emulsion shocks mix oil and air; it is easy to build and works better in a bumps; jumps and landings