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i'm thinking of buyiny a surly steamroller.i'm going to put a back brake on it, and want to mount clamp on cable guides.i need to know the top tube diameter.anyboby help me?

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cat1commuter [1421 posts] 6 years ago
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Yes, I think so. The frame takes a 27.2 mm seatpost, which means the seat tube will be 31.8 (or 32) mm outside. Looking at a picture of the frame, the top tube is the same diameter.

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cat1commuter [1421 posts] 6 years ago
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Sorry, I was wrong. Since it is a steel frame, the tubes will be nearer 30 mm.

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bigheads [7 posts] 6 years ago
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thanks for taking the time to advice,i'll be placing my orders end of the month..