This is the 35T Hand Wound Competition Rock Crawler Motor from Tekin FEATURES: Tuned specifically for rock climbing Dual ball bearings Adjustable timing and capacitors High torque rotor Hand wound INCLUDES: One 35 turn rock crawler modified motor REQUIRES: Installation into vehicle SPECS: Motor Length: 2.23" (56.6mm) Shaft Length: 0.43" (11mm) Can Diameter: 1.14" (36mm) Shaft Diameter: 0.125" (3.175mm) JMLM 3/4/11