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Questions tagged [frames]

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Bicycle frame construction, selection, maintenance, and repair.

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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 ...
Smilia's user avatar
  • 305
3 votes
2 answers
129 views

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 ...
Konstantin Shemyak's user avatar
  • 2,059
1 vote
1 answer
198 views

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 ...
user128105's user avatar
  • 27
2 votes
2 answers
665 views

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:
RvBikeGuy's user avatar
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8 votes
3 answers
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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 ...
Work related Only's user avatar
  • 121
6 votes
1 answer
363 views

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 ...
Robin's user avatar
  • 63
10 votes
4 answers
1k views

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 ...
irilinir's user avatar
  • 101
4 votes
1 answer
244 views

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 ...
Lucas Myers's user avatar
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2 votes
2 answers
1k views

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 ...
Ender's user avatar
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1 vote
1 answer
99 views

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) ...
newcomer's user avatar
  • 11
3 votes
0 answers
93 views

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 ...
MindDBike's user avatar
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4 votes
2 answers
301 views

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 ...
Lucas Myers's user avatar
  • 2,255
-1 votes
2 answers
195 views

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?
Blair Nishio's user avatar
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1 vote
1 answer
114 views

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 ...
Andrew's user avatar
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6 votes
3 answers
266 views

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-...
Lucas Myers's user avatar
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