black rear shock absorbers honda cb550 cb 550 1974 1978 Yamaha XJR1200 It replaces either 21121-1137 or

It replaces either 21121-1137 or 21121-1138

Yamaha YZ 250 (1988-1995)

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Yamaha RS 125 DX (1976-1981)

but also have the wrong resistances which will cause you lots of electrical issues over the long term

black rear shock absorbers honda cb550 cb 550 1974 1978 Yamaha XJR1200 It replaces either 21121-1137 orBrand new set of black rear shock absorbers to fit: Honda CB 550 K0 K4 "Four" (1974 1978). Honda CB 550 F1 F2 "Super Sport Four" (1976 1977). This set of rear shocks are designed to replace the original factory shocks on a Honda CB550 for the years and models shown above. They have 335mm pin fork mounting points and a 100mm shroud. The top pin bush is 15mm, the bottom fork is 10mm M10 thread. (You may need to change the top bush to the required size).