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Motorcycle rims are dimpled toward the hub at each spoke location, and the holes for the spokes are drilled into the dimples at an angle. This angle is a function of the cross-pattern used to lace the wheel, the diameter of the hub flanges, and the width of the hub at the flanges.
The spoke crosses either 1, 2, or 3 oppositely pointing spokes depending on the lacing design. On the flange, the angle between the radii of adjacent holes is 360°/m (for equally spaced holes). For each spoke crossed, the hub is rotated with reference to the rim one "angle between adjacent flange holes".
The Steffey motorcycle in 1902, essentially a bicycle with a two-stroke engine attached, used wooden, rims with wire spokes. [1] This style of wheel evolved into a stouter motorcycle-specific wheel, still with spokes, up to the 1960s and beyond. [2]: 134 In April, 1922, Borrani started production of motorcycle wheels with an aluminium rim. [3]
Whilst spoked wheels offered a degree of flexibility to help absorb road imperfections, they also required periodic maintenance to ensure correct spoke tension and required the fitment of an inner tube. Honda claimed the Comstar design combined the strength of a cast wheel but allowed a predetermined level of radial flex like spoked wheels.
Wire wheels, wire-spoked wheels, tension-spoked wheels, or "suspension" wheels are wheels whose rims connect to their hubs by wire spokes. [ 1 ] [ 2 ] [ 3 ] Although these wires are considerably stiffer than a similar diameter wire rope , they function mechanically the same as tensioned flexible wires, keeping the rim true while supporting ...
The cornering of "an outfit" is partly controlled by the throttle and this makes for interesting effects: A sidecar wheel brake — usually a pedal side-by-side with the motorcycle rear brake — helps considerably. Sidecars place a heavy strain on wheel bearings, wheel-spokes and suspension components; even frames and engines may suffer.