5 Best Bike Chain Reviews - 2021 Edition - KMC
2016-4-27 · 5, 6, 7 and 8 speed chains. 7.1 mm wide 8 speed chain will fit all the other systems (5, 6 and 7 speed ones). Shimano, SRAM and Campagnolo all use the same chain with 8 speeds. Chain for 7 speeds is a bit wider – 7.3 mm, while a 6 speed one is substantially wider – 7.8 mm.
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