Bicycle rim and wheel

Details Bicycle rim and wheel Bicycle rim and wheel

1989-10-20

1991-10-29

Stormer, Russell D.

Land vehicles: wheels and axles

Wheel

Compression wheel

301 95, 301104, B60B 502, B60B 2100

Patent

active

050610139

ABSTRACT:
An improved bicycle rim and wheel having good aerodynamic properties and good crosswind stability is provided. In one embodiment, a toroidal rim is utilized to reduce the drag component normally associated with a conventional spoked wheel. The toroidal rim has a streamlined inner rim surface and a tire mounting surface. In other embodiments, drag reducing spoke systems are used in conjunction with a toroidal rim to lower wheel drag. In the preferred embodiments, the toroidal rim and wheel attached thereto form a transverse cross section which is substantially elliptical and has a high aspect ratio. The maximum rim width can be wider than the tire to achieve good aerodynamic efficiency.

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Specialized Bicycle Components Accessory Catalog, 1990.
Hed Design 1989 Product Price List.
Zipp 3000 Composite Molded Wheel Specification Sheet.
Triathlete Magazine, p. 19, Jun. 1989.
Zipp 3000 Data Sheet.
Aerospoke Advertising Brochure.

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