Hot Racing aluminum triple 3/16in bearing drive strut for aftermarket 3/16in prop shafts on the Traxxas Spartan Race Boat.FEATURES: - Pre-installed triple stainless steel ball bearings on prop side of strut help stabilize the prop and minimize prop deflections- 3/16in ID bearings are compatible with many aftermarket prop shafts- CNC machined aluminum construction - Anodized blue in color YOU WILL RECEIVE: - One (1) drive strut REQUIREMENTS: - 3/16 inch prop shaft. This will NOT work with the stock 5mm Flex drive shaft (TRA5729). For the stock Traxxas 5729 flex shaft use Hot Racing SPN38P06 or SPN38SD06.SPECIFICATIONS: - length: 61mm- height: ~31.5mm - Bearings: 3/16 x 3/8 x 1/8 inCOMMENTS: - This will NOT work with the stock 5mm Flex drive shaft (TRA5729). For the stock Traxxas 5729 flex shaft use Hot Racing SPN38P06 or SPN38SD06. description revised by: PP January 10, 2017