This is the Traxxas Titan 550 12 Turn Electric Motor. FEATURES: Stock motor supplied with the Traxxas Stampede and Rustler series Preinstalled leads, capacitors and connectors YOU WILL RECEIVE: Traxxas Titan 550 Motor, two capacitors and two leads with connectors REQUIREMENTS: Installing in vehicle SPECIFICATIONS: Can Diameter: 1.25" (38mm) Shaft Diameter: 0.12" (3mm) Length Including Shaft: 3.2" (81mm) Length Not Including Shaft: 2.3" (57.5mm) Specs such as RPM are not provided jxs 10/19/06 ir/jxs &