Rear Derailleurs

Rear derailleurs, or rear mechs, come in a variety of options from the big component manufacturers. Choices include mechanical, electronic, short cage, medium cage, long cage, and clutch types, compatible with 9, 10, 11, or 12-speed systems. The specific derailleur you need depends on your groupset and cassette ratios.

At Sigma Sports you'll find rear derailleurs from Shimano, and SRAM for both road and MTB, plus road specific Campagnolo options. Over time, rear mechs can wear out, with springs losing tension from regular use, leading to imprecise shifting. Rear derailleurs manage gear changes at the rear of the bike and support 7 to 12-speed systems.

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