[Meriwether]

I'm pretty sure i know the answer to this but does anyone know if/how/where one can source these new chainstays? I really want to try them for a 29+ build. Photo was swiped from a NAHBS Facebook posting since I can't find any other info or pics of them.

 

[woody74]

Have a word with the guys at Ceeway. I know they have a Columbus order coming in soon as I am waiting for some forks. If not try Andrew at the Bicycle Academy as he has good links with Columbus and have just started stocking tubes. He will also order anything in.

The Bicycle Academy : Cycle frame building school
Framebuilding Bicycles. Tubing, Parts, and Tools

 

[Walt]

What's the point of the 3rd bend?

Just curious, not hating!

Love me some Dales!

-Walt

 

[RCP FAB]

Built in yoke type area. More chainring clearance w/o dimpling.

 

[afwalker]

Did you try Joe?
http://www.bringheli.com/PDF/COLUMBUS.pdf
call him and see if he has any coming.
cheers
andy walker

 

[Walt]

Huh. I don't see how that would help anything unless you are just doing fairly long stays anyway, though. Yokes are helpful because they can have a really small cross section where it matters. This just puts your landing point for the CS in a different spot on the BB shell, it doesn't help add any clearance AFAIK.

-Walt

 

[smudge]

What's the point of the 3rd bend?

Just curious, not hating!

Love me some Dales!

-Walt

You get to cut the entire thing off and put it in a bucket?

The only person I know who will likely use a lot of these is Joseph Ahearne on his super long stay fat tire touring bikes. They look about ideal for that.

 

[Meriwether]

Yeah, what RCP said. I don't know if the bends are in the right spots, or even what the profile of the tube is where the bends are - is it 16 or 19 or ?, but I was thinking it MIGHT be used in place of the Paragon Yoke for 29+ frames to save $185 and some weight.

I just tried my own 'half-yoke' with a plate and...I'll never do that again. I think the Paragon yoke makes for longer chainstays too but seems like the best option for bad machinists like myself and if you want a regular chainline without massive dimples or offsetting the rear triangle. With lightly dimpling these new Columbus stays i bet you could mimic the yoke, but i won't know until i try. But maybe you guys are right that they would likely make for some really long stays...

Thanks for the links you woody74 and Andy, i'll give those people a try.

BTW, the new superbent S-bend Nova chainstays are pretty nice. They're still about 1.5mm thicker at the tire than the 'new' Deda's but they have a bigger bend (33deg).

 

[unterhausen]

What's the point of the 3rd bend?

-Walt

It's been a while since I was trying to stuff a big tire into a bb shell with sockets, but maybe that is what it is for? I know I was wishing for more bends for that project. I'm too tired to think if that's the right bend for that though

 

[dr.welby]

I just tried my own 'half-yoke' with a plate and...I'll never do that again.

What was so bad about it?

 

[coconinocycles]

Damn, those are ****ing ugly.
- Steve Garro, Coconino Cycles