Hobbywing xerun v10 21. 5t g4r black motor the xerun v10 g4r motor from hobbywing ensures outstanding performance on the track. With up to 7% more speed and 9% higher performance, it stands out clearly from comparable motors that are being used in similar situations. Even compared to the g4 predecessor, the improvement in performance is still an increase of 4%, offering an excitingly powerful driving experience in every 1/10 stock race. The g4r motor manages to dissipate its heat through an optimised airflow thanks to the exposed core and the completely new rotor design. For this purpose, the outer diameter and total area of the g4 predecessor were increased by more than a quarter in order to effectively cool the engine and quickly dissipate the heat to the outside. And even if it does get a little hotter: the wiring inside the motor for example can withstand temperatures of up to 220â°c. And the newly installed nylon shims also reduce the overall noise level and are particularly wear-resistant components. You are also free to install the motor according to your own needs. For example, there are two sensor connections to make the cable routing as space-saving as possible. If you place even more value on personalisation, you can use the optional rotor to make the motor ready for particularly demanding competitions. Features 9% more power and 7% more speed than comparable engines 3% lower internal resistance an higher efficiency than the xerun v10 g4 quiet motor with a long service life first-class, linear power delivery weight and cooling-optimized housing high-quality components finely adjustable mechanical timing easily dismantled for maintenance specifications type: brushless / sensored poles: 2 kv-rating: - turns: 21. 5t lipo cells: - power max. : - ampere max. : - no-load current: - outer diameter: 35. 8mm length: 51. 3mm shaft diameter: 3. 17mm shaft length: 13. 9mm weight: - timing (adjustable): 20â°-60â° application: 1/10 stock (hw30401747)