R1 Wurks V21 brushless stock motors
R1 Wurks have introduced their new V21 brushless stock motors. Improved in three key points over the V16, the Version 21 offers further increased speed, optimised cooling and better tuning, meaning owners can extract more performance from the motor in a broader range of both gearing and timing. The stator is built from proprietary R1 laminate material, the end wind is epoxy-bonded and an ultra-low resistance collector ring is used, all resulting in improved punch and top speed. Included with the motor, that is available in 13.5T, 17.5T and 21.5T variants, comes an aluminium timing ring.
Source: R1 Wurks [r1wurks.com]