r/Framebuilding

Tange Ultimate heat treatment vs brazing/welding?

Has anybody tried to braze or weld addons onto Tange prestige ultimate ultrastrong tubes? These are supposedly heat treated? Or are they air hardening like some reynolds?

I plan to modify a 26“ mtb into a mullet cargo bike (20“ front tire).
I have two frames with very mangled paint that i could use as the base. both are my size:
- mid 90ies stevens 862 with Tange prestige Ultimate ultrastrong. Sloped frame, oversized tube, externally splined down tube. Weight 2.1kg
- early 90ies Wilier with regular sized columbus thron, straight top tube. Weight 1,9kg

I feel the heavier sloped frame is stronger and would be better suited to a cargo bike. At the same time theoretically the thron is not heat treated, thick enough for brazing and careful welding. But the Tange ultimate should be heat treated which means i could destroy the treat treatment? I feel it is not that thin though especially at the head tube where i will insert and weld a turned tube extension and at the down tube where i want to add bracing for that extension.

Any frame builders with experience brazing or welding these steels? What would you recommend?

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u/MaksDampf — 16 hours ago
▲ 214 r/Framebuilding+1 crossposts

Just admiring

Just sitting in my yard admiring my Manzanita cycles , Manifesto. AKA Blue Steel. This was born here in Reno NV just a few short miles from my house, built for our local trails. It's hard to believe I held each tube before it was a bike. I watched the builder mindfully cut each joint to perfection. I held and drooled over the bare steel, and learned about how they are butted. This year my steeds didn't see much trail time, which is hard to say. I went from a 1000 miles summer to a summer with less than 100 miles. Work, kids summer schedules and hot AF Reno heat.

But I can feel it, the shoulder season is right around the corner. Tahoe is about to get even more magical than it already is. Summer crowds have left and crisp morning air with tacky trails approaching . Im ready for some flow high alpine leaf peeping trails, and super slow rocky tech crawling. These 2.6 tires and low PSI love to eat. Give you bike some live because good times are coming!!

u/RudeEmu5825 — 1 day ago
▲ 4 r/Framebuilding+3 crossposts

Built a simple wall mounted bike stand instead of buying one

Had some spare wood lying around and decided to make a DIY wall mounted stand for my road bike.

The idea was pretty simple that is to support the top tube from two wooden blocks and keep the bike completely off the floor. I did search pinterest for some ideas and finally decided to go with this.

Very simple yet workable.

I have a small house and often bike used to come in my way. I wanted to make something for it so that everytime I don't band myself into it.

It’s not the prettiest bike rack in the world 😅, but it’s looks solid and now that it's in the air it does save a lot of space.😉

Would love some feedback from the community.

Well i am apprehensive that it shouldng fall. I think I need to put iron clips underneath it. Is it safe for long term storage?

Any suggestions to this mod?

This cost me almost nothing, so definitely open to suggestions before I call this a success 😂

What would you change?

Thanks in anticipation

u/Good-Purple-1010 — 2 days ago

I have pipes and a donor bike for headset and stuff, i have a mig welder, what's next?

Im planning to finally build my first bike, wondering what more is needed before im ready

u/mangothefoxxo — 3 days ago

Titanium concerns

I got this frame today, but at home i found some concerning spots on the welds.

So most of the frame is covered in either paint or adhesive film, but at one spot its coming of so i found this dark line on/ next to the welds.

The frame is a eddy merckx titane made in Belgium and the tubes are litespeeds.

Good thin: the seller is willing to take it back in the next seven days so please help me!

Don`t mind the broken cable guide and the bad paint condition since i will blast it anyway.

u/EmbarrassedResult248 — 5 days ago

Trek Multi Track from the 90s steel frame

I recently stripped the paint off of my new to me bicycle. I did a replacement on the brakes. I got V brakes now, but I wanna get rid of the old brake support. If I remove this would it structurally compromise the frame. I mostly want to remove it just for looks. pls let me know your opinion!

u/Immediate_Expert_682 — 6 days ago
▲ 0 r/Framebuilding+1 crossposts

Can someone help me on how to make my frame look better other than buying a new frame ofc

So I want to get a new frame for my fixie, but I'm too broke to buy a new frame so can y'all help me what to do with this frame?

u/Redzz_diss — 6 days ago
▲ 26 r/Framebuilding+1 crossposts

Peugeot Frame Repair

I commute daily on this 80’s Peugeot Aubisque and the frame broke at the back wheel last week. Didn’t even realize when it happened, i thought my wheel was loose/wobbling.

My question is: Can i get a guy at work to do a quick weld on it or do i need a bike professional?

I don’t care too much about aesthetics. The bike is pretty scratched up already. My only concern is that it’s made of a Manganese alloy. I quick google says it could become brittle if heated.

Any advice?

u/Currency-Crazy — 10 days ago

Fixing broken brake boss

I came across this old steel bike in my shed a few months ago which had been sitting up for about 15 years. I thought I might get it in working order over a day or two but one thing led to another and now I have completely stripped the bike and stripped paint and almost ready to prime it for a new paint job. I think it’s 1990s Trek MTB. My plan is to turn it into a touring bike and I have already got quite a few of the parts including a surly cocktail fork. Here’s the problem though

The smooth part of one of the rear brake bosses has snapped off. Brakes will still screw on but I don’t know if they’ll function properly with half the boss. They’re brazed on so I can’t just screw a new one on. This is the first full stripping down and build I’ve done so I’m feeling a bit in over my head and not sure if it’s worth getting someone to weld on a new boss. Could I bodge a solution? I really don’t want to give up on this bike over something so small and have put in quite a lot of effort. I’m sure my work isn’t perfect, this is a project about learning as much as result. Any advice would be really appreciated!

u/Consistent-Cress4117 — 9 days ago

Some bike parts are more than just components

This project was CNC machined from aluminum alloy with matte anodized finishes in silver and black. Clean surfaces, sharp details, and a design that simply looks beautiful in motion.

Always exciting to help designers and riders turn their concepts into real parts.

u/Fit_Ad_7170 — 13 days ago

Love an expert(hobby) oounion about frame tinkering

Would love to hear what anyone thinks about taking a frame and making some adjustments. Theres a modification that I've seen online that I would love to try out. Transforming a 26"into a mini cargo bike. Involves extending the steering tube and the fork shaft.

https://bikepacking.com/news/diy-cargo-bike-video/

I have 0 fabrication skills, but have access to experienced welders to coach my build. Am I being a silly billy? Any advice would be greatly appreciated:)

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u/Ok-Afternoon-3494 — 12 days ago