Denting chainstays for tire clearance

Bruce Lange said:

On a steel road frame with "normal" (not oversize) tubing, is it easy to
have a framebuilder dent the chainstays to increase the tire clearance? How
much clearance can be gained before the integrity of the stays is
questionable?

How much should it cost?

I realize there are many factors at play; just looking for a general idea.

On a nice thick Reynolds 531 frame where the paint is
expendable? A lot less money than a modern thin frame.
Especially where paint is new.

Seriously, modern steel tubes wouldn't much like that.

And there's not much clearance to be gained there anyway.
What? Fron a 32 to a 35mm tire maybe?

This is not a common request by any means. Although I've
dented literallly a couple of hundred chainstays for
chainring clearance, I've never shaped the insides.

--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

Bruce Lange said:

On a steel road frame with "normal" (not oversize) tubing, is it easy to
have a framebuilder dent the chainstays to increase the tire clearance?
How much clearance can be gained before the integrity of the stays is
questionable?

How much should it cost?

I realize there are many factors at play; just looking for a general
idea.

So the limiting factor in terms of tire clearance on this frame is the
chainstays?

If this is a decent frame consider replacing the 622 wheels with 584s
(aka 650B). You'll need to replace the brakes, but often that can be
accomplished with fairly inexpensive but good medium or long reach center
pulls. Here's a URL with photos of several bikes made for 622 with
limited clearance that have been so converted
<http://folks.harbornet.com/kstagg/650b/>

Steve Palincsar said:

Bruce Lange said:

On a steel road frame with "normal" (not oversize) tubing, is it easy to
have a framebuilder dent the chainstays to increase the tire clearance?
How much clearance can be gained before the integrity of the stays is
questionable?

How much should it cost?

I realize there are many factors at play; just looking for a general
idea.

So the limiting factor in terms of tire clearance on this frame is the
chainstays?

If this is a decent frame consider replacing the 622 wheels with 584s
(aka 650B). You'll need to replace the brakes, but often that can be
accomplished with fairly inexpensive but good medium or long reach center
pulls. Here's a URL with photos of several bikes made for 622 with
limited clearance that have been so converted
<http://folks.harbornet.com/kstagg/650b/>

how do you deal with the danger of pedal strike now that the bb is
closer to the ground?

Judging by the tires, the standover dosen't look any different. What once
was a rim is now the sidewall of a larger tire.

Eric