Bicycles Stack Exchange
Bicycles Stack Exchange

Questions tagged [frames]

Bicycle frame construction, selection, maintenance, and repair.

939 questions
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20 answers

What different frame materials have been used?

In response to yet another frame materials question, I thought it might be useful to start with a more answerable question. One answer per material please, with an example of a bicycle frame using that material. Please use the format I've used in my…
Móż
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17
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5 answers

Which frame material is the most sustainable?

I would like to buy a new road bike. However, I also want to make sure which material is the most sustainable. On the one hand in production and on the other hand in disposal. I had already asked a question about carbon frames: "Is the carbon frame…
Maik Lowrey
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16
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3 answers

How do I measure the size of my bicycle frame?

From what point to where do I start measuring? I suspect the bike I'm trying to measure is a 56cm because I usually ride a 54 and this is slightly too big, but I want to be sure.
Andrew
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14
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3 answers

Can I glue this crack as a temporary solution?

I suddenly noticed a crack in my frame. Is it practical for me to use glue to seal it off as a temporary solution? Edit: Further information ...two incidents so far. Someone opened their driver side door on me and I slammed into it. That…
Yu Zhang
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14
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5 answers

Can the top tube on a mens bike be cut off?

I want to cut the crossbar on a mens bike to make it easier to get on and off. Will it damage the bike?
user22629
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10
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2 answers

Why are aluminum frames fitted with steel rivnuts?

I have a couple of old aluminum frames and the bottle cage mounts always show signs of galvanic corrosion due to the steel rivnuts. Why do manufacturers not use aluminum rivnuts?
Gregory Leo
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10
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3 answers

Recycling bicycles

Previous week our street had a collection of bulky waste. In two days I have really seen an enormous number of old bikes. Some bikes were probably more than 30 years old. Typically, old people save their bikes for many decades in their basements and…
BlueBall
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10
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2 answers

Why are bike frames getting so much bigger

This is just a general interest kind of question, but I've really been wondering about this lately. We've had a lot of advancements in bikes over the years, and people are always trying to make them lighter, yet for some reason it seems that the…
Kibbee
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8
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2 answers

Is my frame cracked?

I just picked this frame up for $100. Is this a crack? It looks and feels deeper than a surface scratch. I intended on this being my 1st build, should I continue? I hope I didn't waste my money
Mindcontrol
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8
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3 answers

How bad is this fire damaged alloy frame?

I got this Shimano Ultra groupset bike for free, all I need now for it is shifters as the carbon and rubber melted in them and the original seat. But now I am wondering if I can get away with it, I don't want the top/down tubes to brake off the…
sabgenton
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7
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Why are steel bikes more expensive than aluminum?

It's hard to find a chrome moly bike for less than $1000 these days. Is it because it's actually less expensive to manufacture aluminum bikes these days or is the market for chrome moly bikes so small that economies of scale make aluminum bikes…
obelia
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6
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3 answers

The Effects of Widening Seat/Chainstays

first time so bear with me please. I recently had to replace my rear wheel. Went to LBS and the only options available are 130mm spaced. I have a nice Specialized 1980s frame that measures 126mm. It's a steel frame so squeezing in the new wheel is…
user38810
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5
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1 answer

Identify unusual thin bicycle frame

What is the generic name and/or specific products associated with the illustrated frame? Is it lighter than a normal frame?
Nayuki
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5
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2 answers

How to stop the corrosion?

I have a silly question maybe.. How to protect the frame of my bike from corrosion? The bike is not new. Are there any accessories? Thanks
geraldson
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5
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4 answers

What is this brown goop on my new bike frame?

I'm building a single speed bike, and ordered parts from various different places. My EAI Bareknuckle frame got delivered this morning, and it looks great, except for this part of the fork, that has this dried brown goop on it. It doesn't look like…
Vidur
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