The Tamiya Torque Tuned Motor offers performance that is between that of a standard Type 540 motor and Item 53068 Sport-Tuned Motor. Compared to a standard Type 540 motor, it offers a higher top speed and improved acceleration when used with a RC car model's standard gear ratios. Tamiya 540 motor comparisonStandard 540Turns: 27T*Top speed: 24.3Km/h Torque-Tuned MotorTurns: 25T*Top Speed: 26km/h Sport-Tuned MotorTurns: 23T*Top Speed: 29.1km/h *Measured using TT-01 chassis with kit-standard gear ratio. Specs and Features The motor has a Silver outer case with marking sticker. Compatible with Tamiyas R/C car models. Manufacturer: Tamiya Model: 54358 Torque Tuned Motor