Bicycle frame construction, selection, maintenance, and repair.

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1answer
122 views

Can a road bike be transformed intto an mountain bike? [closed]

I have a rigid road bike right now, can I transform it into a full suspension mountain bike?
4
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1answer
109 views

how to strip the paint from a bike yourself?

How can I strip the paint from a bike frame? I tried using a sander and it left really annoying scratch marks on the frame. Is it possible to use a chemical paint stripper to completely remove the ...
0
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4answers
493 views

if my height is 5'9" what mtb should I buy? [closed]

I am rookie and I want to know about mountain bike and want to know that if my height is 5.9 which mountain bike works for me. So guys please help to know about mountain bike.
1
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2answers
246 views

Cannondale six13 52cm Carbon top tube?

One for the Cannondale nuts: I've got a real soft spot for the Cannondale six13 and have been after one for ages. A 52cm has popped up for sale which would be ideal but I've noticed that it has a ...
2
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1answer
121 views

How do I identify the manufacturing year of a Surly pacer frame?

I am looking at purchasing a used Surly Pacer. However, the owner is unsure of the year (he also bought it used). Are there any visual cues that I can use to identify the year of the frame?
2
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2answers
198 views

Carbon frame strengh

Almost every question Bicycles.SE about damaged carbon frames seems to get the same answer: "the frame isn't safe anymore." How strong of a hit is needed to break a carbon frame? There are little ...
0
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9answers
1k views

Are there any manufacturers of steel road bikes today? [closed]

Is there any major bike manufacturer that still makes steel road bikes today? The frame of my old Bridgestone got cracked and the crack is too close to the alloy BB lug for me to be able to weld it. I ...
1
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2answers
260 views

How to build a fixie bike? [closed]

I’m thinking about building a fixie and was wondering what are the best types of frame, wheels etc to use and how long the whole building process may take?
1
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4answers
302 views

Why don't race bikes have solid front triangles?

I know that cutting material out makes a bike lighter, but at some point there must be a crossover between weight and aerodynamics. Since tri-bikes and track bikes have more oval/flat shaped tubes, ...
5
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2answers
754 views

Is it possible to compensate a short sized frame by adjusting seatpost and stem?

Could you achieve the same position you would have on a bigger frame by raising seatpost and stem? And how could I adjust those to "simulate" a bigger sized frame?
7
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2answers
499 views

Do I need to plug internal cable routing ports?

I have just ordered a OneUp Components 42T sprocket and a Race Face 30T Narrow/Wide single ring so that I can convert my 3x10 drive train into a 1x10. This means that I'll be removing the front ...
0
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2answers
122 views

Information about an old frame

I'm looking for information about this frame- it's my trusty touring bike, and I've been gradually upgrading it - next up is to convert to 700c and a modern chainset (probably sora to keep costs down) ...
12
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7answers
4k views

Is there such a thing as frame failure?

Several general questions have been asked regarding how long a bike or bike frame will "last", and the gist of answers seems to be that a bike can last quite a while of the replaceable components are ...
1
vote
1answer
342 views

What is the frame called that fits 700c wheels?

I have a set of 700c wheels and am looking to buy a used frame. I want a frame that fits the 700c tires so I don't have to file down the front dropouts or use long reach brakes. What are the frames ...
4
votes
1answer
333 views

Can i stop my frame scratching my seatpost?

I have an On-One Scandal aluminium frame, into which i have put a carbon seatpost. I have been adjusting it to find the right height, and i have noticed that it is getting seriously scratched - see a ...
0
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1answer
82 views

Y-Foil Frames Rear Suspension?

I have a few questions about the Y-Foil frame (beam frame) Firstly as far as i have seen, there is no rear suspension system, does the fact that there is no seat tube offer suspension and dampening, ...
4
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3answers
240 views

Down tube and seat stay

I've noticed that in a lot of bikes (though certainly not all), the seat stay and the down tube are parallel or nearly so. Is there any structural reason why a manufacturer might make that choice or ...
1
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2answers
237 views

Building a 36er bike [closed]

I'm casually researching building a 36er bike, preferably mountainbike style. I'm looking for the experience of others on this. I would like to own it more for curiosity sake than any other, but would ...
0
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1answer
847 views

What's an “Auto-Mini” folding bike? Can I use one for decades without having to replace the frame?

I've been thinking of buying an internally-geared folding bike for commuting (5 km each way) and errands. I want to spend $100-$200, but I want a reasonable-quality frame; I don't want to ever have to ...
5
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1answer
245 views

Repairing Carbon / Aluminum frame

My road bike is aluminum with a carbon rear triangle. The carbon rear slides into the aluminum, and I believe was bonded with some sort of epoxy. The pieces have begun to separate after 2.5 years ...
2
votes
2answers
203 views

Bike frame measurements

I'm 6'2 and ride an XL hardtail. I found a killer deal for a full suspension that is a Large frame. Since I am basically right in the middle of large and xl frames would it work riding a large? I'm ...
1
vote
1answer
132 views

measure dropout to fit chain tug

I want to buy a chain tensioner, like the one in the first picture in this answer. I did some research and it looks like they have different size, according to what they call "dropout size". In fact, ...
3
votes
4answers
439 views

Does the top tube typically open into the head tube?

This must be a very basic question, but as it often happens with very basic questions, it is often hard to find the answer by searching. On a modern bike with metal (welded) frame, is the interior of ...
-1
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1answer
211 views

Is there a best suspension frame? [closed]

According to Wikipedia Trek holds two of the several suspension frame designs, and uses them both (combined) on their mountain bikes. The technologies are EVO link and Full Floater, being claimed to ...
5
votes
1answer
486 views

What bike do I have?

I have recently purchased a bicycle from a second hand shop. It seems to have all sorts of different parts. The frame however has a badge and markings of 'Kontroll' made in West Germany. Doing some ...
15
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3answers
9k views

Explaining the effects of frame geometries

I asked about buying a bike here, and someone asked on my behalf about test-riding a bike before buying. My question is, what should I know, or should have known, about the sizing or 'geometry' of a ...
2
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2answers
136 views

I am having trouble identifying the manufacturer of this bike

What brand is this logo? Can anyone identify this?
1
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1answer
384 views

What make is my BMX frame?

I have a BMX forsale, but I would like to know what make the frame is so I can determine how much it is worth. Does anyone recognise this symbol on the frame? Thanks for your help Jon
5
votes
1answer
158 views

Why would higher fork contribute significantly to breaking the frame?

When I recently cracked my frame near the headtube, every bike shop that I went to, asked me explicitly "Did you put a longer travel fork?". Putting aside that apparently fork travel and fork crown ...
4
votes
4answers
199 views

Alternative uses for an aluminum MTB frame

Any alternative use for old mountain bike tyres and inner tube? So my frame has a large crack near the headtube and I am replacing it. Could I use the frame in any other way? E.g. give it away ...
2
votes
1answer
69 views

rebuilding/frankenbike query

My son (teenager) has a second-hand Zombie bmx style bike - it's designed for kids, but as far as I can see the frame size is the same as any bmx. It needed a bit of messing around with, I've already ...
3
votes
2answers
359 views

What would be the handling of a bike with reversed stem?

There are short and long stems: What effect does changing the stem length have on my bikes handling There are flat bars and there are curved back bars for comfort upright position: There even ...
26
votes
6answers
17k views

Why is carbon fiber inherently weak? Or is it?

This question got me to thinking: If it were possible for me to use a carbon frame, I would, but the expense and my riding style keep me using steel and aluminum. (I like hauling stuff on racks and ...
8
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7answers
17k views

What are the advantages and disadvantages of riding a smaller Mountain Bike frame?

I am 182cm (5' 11'') tall and am looking into buying a new frame for my mountain bike. Right now i have a 19'' frame and i found a good deal on a 17'' frame. The guy from the shop told me that it ...
1
vote
1answer
185 views

May I ignore the frame damage (or should I get a budget carbon frame)

I was happily using my Canonndale F5 Hardtail to commute to work and other places (like shopping, going to a swimming pool and the like) until recently I had a very unfortunate accident with a car. To ...
5
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1answer
237 views

S shaped down tube (MTB)

Are there any advantages of S shaped down tubes over the traditional ones on MTB? For example: what do you think of this design? Jamis Exile Comp 2013
1
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2answers
331 views

top tube angle on steel and carbon road bikes

You generally see the top tube on steel bikes being parallel to the ground, whereas on a lot of carbon bikes it's angled. Why is that? (my observations are obviously limited, but it seems like a ...
0
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1answer
452 views

Fort bicycles company from Czech Republic: Where are the steel frames? Company renamed?

There is or was a company from Czech Republic that produced steel frames and forks. The name of this company is or was Fort. Why can’t I find anything about this company or their steel frames and ...
0
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2answers
223 views

A bike smaller than is recommended

I have 180cm and the recommended size for me is 58cm or so, which i already have, a classic Peugeot racing bike. Works relatively ok but i found that i ride it better when i'm leaning forward and keep ...
1
vote
2answers
323 views

How to judge BB height visually and the effect on handling?

Is it possible by viewing a bike frame to tell roughly what the handling of the bike is going to be? This current question is about bottom bracket height in the above mentioned respect. I have ...
-1
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1answer
129 views

Replacing a road bike frame [closed]

I have a 2002 Calfee carbon fiber frame, with aobut 45,000 miles. If I replace it with a new one, what improvements can I expect? I have no complaints about the frame, other than a poor paint job.
-1
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2answers
423 views

What is the right (best) bike for me? [closed]

RE: Disabled Vet, out of condition and trying to buy a bike I started biking back in 1985 and have been out of biking almost 20 years. I was fairly savvy on the equipment of the day. It's changed ...
5
votes
1answer
409 views

What is the significance of rear travel of a frame?

Every suspension frame has the the following two parameters: shock travel and rear axle travel at maximum shock compression. I have a lot of questions, regarding those two: What are they properly ...
5
votes
3answers
2k views

what type of bike/frame to use when overweight?

I'm around 230lbs. Since I do enjoy biking, I was looking up old school racing bikes on craigslist. Some of the frames are built with "Tange 1" steel which specify weight limits (180lbs). Is it really ...
7
votes
3answers
971 views

How to match a paint color?

Do you know how to match a color on the frame ? I want to buy a paint from a tool shop but I'm not sure if it's match with the frame color. I'm going to use the paint for a touch up. Thanks for the ...
2
votes
1answer
198 views

damage to carbon road frame at the seat stay and drop out junction

I just had a crash due to hitting a dog. My carbon fiber frame now has chip the size of a dime at the junction of the seat stay and drop out on the drive side. Should I be concerned about frame ...
2
votes
1answer
643 views

What defines a “compact” road bike?

I've been reading a lot about road bikes and looking at the differences between bikes called "compacts" but I don't see much consistency. I've read that compact road bikes have different gearing and ...
4
votes
3answers
2k views

Attach bottle cage to frame w/o mount screws

I'm planning on getting a bottle cage for my bike, but my bike does not have the standard mount screws for one. As I understand it, there are two types of cages: bolted cages and clamped cages. I'd ...
3
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1answer
1k views

How to calculate bike stand-over height using frameset geometry and wheel radius?

While it's best to buy through fitting a bike in store, it's not always possible (discussed here). On some websites, the stand-over height of a bike may not be listed as part of the specifications. ...
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votes
1answer
4k views

How to tell what BMX frame I have?

How can I determine what kind of BMX frame I have if I there no decals on the bike when I got it? I got it from my dad who found the frame and we put it together, but I am clueless as to what brand or ...