| 摘要 |
A motorcycle disk brake rotor in the shape of an annular ring is (i) mounted to the motorcycles rear wheel at the outside of its annulus and (ii) swept by the yoke of a disk brake caliper that is mounted to the inside of the annulus. A belt pulley affixes at its exterior circumferential region-either rigidly or "floating"-the exterior annular region of the disk brake rotor which is in the shape of the annular ring. A motorcycle disk brake caliper assembly is anchored at one mounting point to the motorcycle's rear axle shaft, and at a second mounting point to the motorcycle's suspension swingarm, engages the disk brake rotor from the inside of its annulus. The combined disk brake and belt pulley assembly is compact and visually regularly appearing. It may suitably be stylized with the same pattern as are the wheels of the motorcycle. While providing both (i) braking and (ii) motive drive functions, it is entirely located upon but one side of the motorcycle's rear wheel, making that the view of the other side of the wheel is unobstructed and aesthetically improved. It is suitably retrofitted to existing belt-drive motorcycles.
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