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The Honda CB550 was probably the best balanced Honda of the seventies. It did not have the awe-inspiring power of the legendary CB750, but it had a stiffer frame and was a lighter and more nimble motorcycle. The Honda CB550 was introduced in 1974 and remained in production for five short years until 1978.
The engine of the CB550 was the same power plant as fitted to the CB500 but with its capacity increased to 544cc (33.2 cu. in.) lifting its power to 50 hp at 8,000rpm with torque of 30.4 lbf.ft at 7,500rpm. The engine breathed through four 22mm Keihin carburetors in typical Honda style. The engine’s compression ratio was 9:1 which means it preferred the leaded “super grade” gasoline of the time.
The engine was a typical Honda in-line four cylinder with single valves (i.e. 8 valves) and a single overhead camshaft. This engine was mounted transversely in the frame and made as a unit with the five speed transmission.
The frame of the CB550 was a steel cradle type with twin down-tubes. It was a stiff frame well engineered for the weight and power of the bike and contributed greatly to the bike’s handling.
We at Omega Racer offer a steadily growing number of custom made parts for the CB550, including handcrafted aluminium gas tanks, fairings and seat cowls.