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Wheel disc brake — Harley-Davidson patent US4488761A (1984)

PatentUS4488761A
TypeUtility patent
Filed1982-05-10
Granted1984-12-18
InventorErik F. Buell
SystemBrakes

“In a combined wheel-disc assembly, the wheel disc surface is used as a brake rotor. The need for a separate disc rotor is eliminated and the assembly provides a large area for brake contact and desirable air cooling of the braking surface. Braking forces are balanced in the disclosed assembly.…”

Full patent textDownload PDFShop brakes parts

Drawings (2 sheets)

Wheel disc brake — sheet 1Wheel disc brake — sheet 2

Parts for this system

28-0685
Rear Brake Caliper Rubber Bumper
$8.51
28-0686
Caliper Bushing Rubber Boot
$8.51
28-0687
Caliper Pin Rubber Boot
$8.51
28-0725
Brake Caliper Screw Set
$8.51

Check fitment first — add your bike and we flag what fits.

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Drawing from the US patent record (via Google Patents). A patent shows the invention as filed, not necessarily the production part on your motorcycle — confirm fitment for your model and year. Independent aftermarket retailer, not affiliated with Harley-Davidson, Inc.