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Cleveland CycleWerks is a privately held motorcycle manufacturer that designs and assembles small displacement retro style café racers and bobbers at its headquarters in Cleveland, Ohio, relying on offshore manufacturing in China by CPI Motor Company of Taiwan for most components, including frames and the Honda-derived engine used on all models.
In this period, it became possible to assemble a complete chopper using all aftermarket parts, companies like S&S Cycle built complete replacement engines based on Harley-Davidson engines, frame makers such as Paughco offered a variety of hardtail frames, and many bikes were built using these new repro parts. Super long girder and springer ...
Bobbers are typically built around unmodified frames, while choppers use either highly modified or custom-made frames. [13] Chopper frames are often cut and welded into shape. A bobber is a motorcycle that has undergone a ‘bob-job’ (hence the moniker 'Bobber'), that is, had extraneous parts removed for simplicity and weight-reduction.
One of the earliest examples was the 965cc motorcycle produced by Louis Janoir in 1920, which used pressed steel for the frame, rear swinging arm, and the front forks. The frame may be entirely pressed (Ariel Arrow), or may have just a pressed aft section connected to the steering head by a conventional steel tubular spine (Honda Super Cub).
Some motorcycles include the engine as a load-bearing stressed member; this has been used all through motorcycle history but is now becoming more common. Oil-in-frame (Oif) chassis, where the lubricating oil is stored in the frame of the motorcycle, was used for Vincent Motorcycles of the 1950s, and for a while during the 1970s on some NVT ...
The featherbed frame was a motorcycle frame invented by the McCandless brothers and offered to the British Norton motorcycle company to improve the performance of their racing motorcycles in 1950. It was considered revolutionary at the time, [ 2 ] [ 3 ] [ full citation needed ] and the best handling frame that a racer could have.
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The appearance and frame of an underbone are quite different from that of a standard motorcycle, but the powertrain is functionally almost identical. The underbone engine is positioned between the rider's feet but the rear wheel is driven by a regular motorcycle secondary chain drive. Styling considerations only mean that the chain-driven ...