You can also run a 1 1/18 stem on a 1 inch steerer with the right shim, life will be easier if you just go for 31.8mm clamp from the start. 1 inch ahead stems aren't as common as 1 1/8th.
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You can also run a 1 1/18 stem on a 1 inch steerer with the right shim, life will be easier if you just go for 31.8mm clamp from the start. 1 inch ahead stems aren't as common as 1 1/8th.