I could, to be honest, chuck a 12-27 on there, I climbed Zoncolan on 50/34 12-27
There is a new Tiagra cassette with 30t.
They've got all the same ramps etc (and nice shifting) as 105/Ultegra/DA but no alloy spider so they're cheap.
@miro_o started
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There is a new Tiagra cassette with 30t.
They've got all the same ramps etc (and nice shifting) as 105/Ultegra/DA but no alloy spider so they're cheap.