Professional metal stitching / Framebuilding Appreciation

WWWWWWWWWWWWWHHHHHHHHHHHHHHHHHYYYYYYYYYYYYYYYYYYYYYYYY DID YOU HURTS IT!

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Can't do a page without Firefly

Hartley

That fork crown gives me a headache

Nooo it's so nice!

Groundup are well worth a follow on instagram if you're that way inclined.

He posted about welding ti tandems the other day, he's done some ridiculous number of them. Also plays polo, owns a racecar and has a dirt velodrome outside the workshop.

Is there a full bike shot? Paint is wild

Yeah I reposted some of his photos on the last page! Love the new SR71 Blackbird project ^^

26" little people tourer

Not to everybody's taste, but I love the industrial ( although still very tidy ) look on Nicolais.

https://fotos.mtb-news.de/p/2115010

That is gorgeous work...is that the 3rensho tubing on the fork that are popular on njs forks?
Who's the builder? Rob English?

Victoire cycles built that, no idea about the fork tubing

The build is a little bit of a letdown imo

Never seen a TT bike cassette that big.

Especially with only a 50t ring

Big fan of this

Yeah that’s nice.
I wonder if the way the lug was designed speeds up all the jointing on that part of the frame for batch production. Clever if it does.

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Eric Baar from @GroundUpSpeedshop on it again doing a romantic mtb tandem

Get out

I am/have been working on something similar to that seat tube lug.
In my case it is to create a better transition from an ovalised Max or custom 31.8mm top tube (measures more like 35-37mm at the junction) to a 29.8mm seat tube. I think Donohue might have had similar idea with their design.

This is the challenge:

You want a steel cross bike to have flat top tube for shouldering but a skinny seat tube for 27.2 seat post.
By having a Max inspired lug you can silver solder this bit and TIG the rest. As opposed to having to braze and file everything. What you sacrifice is custom angle between seat tube and top tube. But for batch production and standard geometry it probably works fine. Or if you can have it custom 3D printed every time.
I am not a fan of the triangulated webbing although I can see it work from a marketing perspective.
I will make my design fit a wishbone (because of other fabrication considerations) instead of the CAAD10 inspired seat stay to top tube transition, although it does look lovely.

Pic url says it's a triathlete's bike. Explains a few things.