Questions tagged [frames]
Bicycle frame construction, selection, maintenance, and repair.
976 questions
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Best Welding Method to Fix a Damaged Steel Surly Frame
Here I am with my damaged Surly Steamroller 4130 CroMoly steel frame. Don’t ask me how I managed to do it — I honestly have no idea. I’m trying to figure out the best way to repair it by welding the ...
- 305
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2
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Seatstays join the seat tube lower than the top tube - why? [duplicate]
In the classic "diamond" bicycle frame, seat stays join the seat tube at the same point with the top tube. This makes sense mechanically, as the seat tube does not experience side force ...
- 2,059
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Trek 2000, which is red, with white letters/numbers: year?
I have a Trek 2000, which one source claimed, by color combination, was originally offered as a frame - only, the first year Trek made aluminum frames, then the next year, Trek offered their first ...
- 27
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Identifying a mountain bike frame
I've got this mountain bike frame that I'm trying to identify. Any help would be appreciated!
The serial number on the bottom is 04I0010045. Here's a bunch of pictures:
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Can you help me to find what brand/make/model of bike my late father once used?
I don't have any information about where this bicycle is from, and I would like to know, because I've been searching but got no results.
He did repaint it, and changed a few things, maybe it s ...
6
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1
answer
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Dent on the bottom tube of the steel frame
I just noticed I have a dent (about 5/8 inch or 1.5 cm) on the top tube near the lug for the headtube on a vintage steel Pinarello I recently bought. I was wondering if you think it might be dangerous ...
- 63
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Chain slap scratches, should I be worried?
A year ago I bought a used bike which had a scratch on chainstay just behind the chainring. I thought it was caused by fallen chain and it was mostly cosmetic.
Later I looked more closer - the scratch ...
- 101
4
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How to verify disc brake compatibility between frame/fork, calipers, and rotors?
General question
What are all of the pieces of information that I need to know about a frame/fork, disc brake calipers, and disc brake rotors to be sure that they are compatible? And how much of this ...
- 2,255
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Shaving the BB shell of my MTB gone wrong?
I have a Merida Big Seven 100 27.5" MTB. I bought it as second hand a few years ago, and it wasn't in good condition. There was a creaking sound coming from somewhere while I was riding. I found ...
- 2,416
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What are good German-language resources for learning more about bike fitting? [closed]
I’m looking for comprehensive information on bike fitting in German.
So far, I have found these two resources:
Bikefitting – Ablauf, Kosten, Eigencheck & Profi-Analyse (fahrrad-tipps.com)
...
- 11
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Books for beginner frame building
Having watch a number of YouTube videos on bicycle frame building, I would like to try it as a hobby.
I've started to buy some things for a bike frame jig from Ideas2Cycle and I am about to get the ...
- 1,440
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Consequences of bottom bracket spacer
The smallest chainring on my bike is just rubbing on the chainstay. The crank arms and chainrings are vintage Campagnolo so I would really like to refrain from changing them out. The bottom bracket is ...
- 2,255
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What bike model is this
Someone wanted to trade an item for this bike
But I can’t find this frame anywhere for a cannondale e-bike. Can somebody help me out?
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Guesses on frame brand?
So, my frame cracked while riding today. It's an aluminum frame, so there's no point in trying to fix it afaik. After a suitable mourning period I started looking for a replacement frame and found ...
- 1,150
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Indent on drive side of rear triangle near dropouts normal?
I picked up a 1991 Bianchi Ibex mountain bike that is in rough condition. During disassembly I noticed that the two tubes on the drive side rear triangle have indents which are not present on the non-...
- 2,255
