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Wide Range Drop Bar Options
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10-14-21, 03:27 PM
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DorkDisk
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GRX 812 is 1x, has a capacity of 31 which is eaten up by the cogs. GRX 810 is for doubles, and has a capacity of 40 (so 34-11 allows 17t chainring diff max). Yes, Shimano is conservative and some report 810 doing 42t, others are not so lucky. YMMV.
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