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3
votes
5answers
256 views

I want to weld or braze the pedal to the crank arm, but what metals are they?

I ruined the threading in my crank arm, and would like to weld or braze it back on, instead of buying a new crank set. It is a cheap old bike, so the result does not have to be perfect, but it should ...
4
votes
2answers
222 views

Tapping threads into braze-ons

I have a rather old frame that doesn't have threads on the rear rack braze-ons, and thus requires a nut. This nut makes contact with the chain if the chain is on the outer sprocket, so I'd like to tap ...
2
votes
1answer
73 views

di2 front derailleur braze on for 105?

can di2 front derailleur braze on adapter be used to mount 105 derailleur?
6
votes
2answers
379 views

What is the purpose of a braze-on on the underside of seat stay?

I have a Jamis Citizen 2 Step through (2013 or 14 maybe) which has a braze-on on the underside of the seat stay near the brake studs. Just one braze on each side. I'm curious as to what the intent ...
6
votes
2answers
445 views

What is the purpose of this braze-on?

I'm wondering what the purpose of the braze-on pictured below is? It's on the non-drive side of my fork. I thought it could have something to do with racks, but then I figured they would put one on ...
2
votes
1answer
205 views

Lubricating screw/braze-on threads: Bike lube or polylube?

Years ago, I made the newbie mistake of forcing a rack screw into a steel braze-on. I had to replace that fork. And I've heard this advice many times: When putting a screw into a braze-on, put a ...
3
votes
2answers
517 views

Possible to repair a pushed in braze-on?

I have a Trek 7200 (Alpha aluminum frame) and it has two water bottle holder mountings, the top braze-on on the seat tube seems to have broken from over-tightening and has sunk into the frame. These ...
4
votes
1answer
1k views

How should I restore braze-on brake cable housing guides?

I own a 1988 Schwinn Le Tour. It's beginning to show its age-- the original paint is chipped in many places and the frame is rusting underneath. The worst areas, by far, are around the rear brake ...
7
votes
2answers
625 views

removing broken mudguard/fender bolt from eyelet

A couple of years ago I tightened the bolt attaching my rear mudguard/fender to the eyelet at the hub and it snapped, leaving a 5mm long section of bolt stuck in the thread. Since then I've tried ...