specific chainstays...

[adashner]

preface: i am not doing the repair (ok, i'll be mitering it), nor do i understand this particular burning need, but whatever...

so have a guy with an older (99-00ish) fisher hoo koo e koo frame that has some kind of sentimental value to him. ds chainstay is gouged pretty bad, and he wants it replaced. like, exactly if possible. which i don't think it is. first, it's a 19mm round at the bb, measures 18mm o.d. at the drop out, with a fairly pronounced (and dimpled inboard and out) s-bend (end measures approx. 77mm from bb), true temper triple butted vanadium sticker on the seat tube.

i haven't hunted this stuff much- is there anybody that even makes such a chainstay these days? seems like there's nothing out there (at least through a cursory search) smaller than 22 o.d.

i suggested replacing both chainstays just so they'll match, but he wants this to be as original as possible. again, i don't get it, but the man wants what he wants.

anybody have 1 or 3 of something laying around like this that'll work? even a straight 19/18 round that we could bend to match...

thanks,
abe

[shiggy]

preface: i am not doing the repair (ok, i'll be mitering it), nor do i understand this particular burning need, but whatever...

so have a guy with an older (99-00ish) fisher hoo koo e koo frame that has some kind of sentimental value to him. ds chainstay is gouged pretty bad, and he wants it replaced. like, exactly if possible. which i don't think it is. first, it's a 19mm round at the bb, measures 18mm o.d. at the drop out, with a fairly pronounced (and dimpled inboard and out) s-bend (end measures approx. 77mm from bb), true temper triple butted vanadium sticker on the seat tube.

i haven't hunted this stuff much- is there anybody that even makes such a chainstay these days? seems like there's nothing out there (at least through a cursory search) smaller than 22 o.d.

i suggested replacing both chainstays just so they'll match, but he wants this to be as original as possible. again, i don't get it, but the man wants what he wants.

anybody have 1 or 3 of something laying around like this that'll work? even a straight 19/18 round that we could bend to match...

thanks,
abe

Use round 3/4" and bend to match. Not likely to notice a 1mm taper.

This is probably what was used at the factory rather than stays from an off the shelf tube set.

[jon_norstog]

+1 on that. Should be a fairly EZ bend to make.

jn


"Thursday"

[adashner]

yeah, that's probably what's gonna happen. thought i'd go fishing first...

[GrayJay]

Provided it is not actually cracked, seems like it would be much less invasive to preserve the original chainstay and fill the gouge with braze.

[adashner]

i don't know- think you'd add probably a pound to the frame weight... i can't even figure out how this happened- the rest of the frame is immaculate.

IMG-20130220-00810.jpgIMG-20130220-00811.jpgIMG-20130220-00812.jpg

[Andrew R Stewart]

Classic chain suck damage. Many times by the look of it too. I'd be tempted to just bondo before repainting. Hard to tell if there's a crack. If so then a very thin plate brazed over the damage would be my next thought. Anything to avoid replacing the stay, that would be my drop dead last choice. Andy.

[edoz]

Man, I'd fill that with silver and ride it.

[devlin]

I had similar damage to a Ritchey Softail. It now hinges about the left CS. That gouge in the middle looks similar to the one I had and that's where it broke even with a nice slather of brass over it. I'd be more inclined to fashion a patch to go over the top and wrap the stay a little then braze in place. Then you'd have extra meat for any further chain suck in the event that does happen again.