Kyosho is releasing a new upgrade kit for the RB5 SP/RT5 to improve the balance when using brushless motor. The new transmission parts center the mass of the motor along the center line of the chassis for perfect left/right weight distribution when using brushless motor. Brushless motors are longer than typical brushed motors, for which the RB5/RT5 transmission was originally designed. There'll be new rear suspension arms, motor guard, main gear shaft set, motor plate spacer and new rear hubs too. The part number is UMW517. Check out the attached file.
