Bicycle frame construction, selection, maintenance, and repair.

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1answer
464 views

Carbon frame cracks

I have a 2010 Gary Fisher Cronus, when I brought the bike in for a tune up this spring the bike shop told me they wouldn't do it because of cracks around the seat post. They pointed out that I had my ...
5
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5answers
30k views

How to tell if a carbon frame is damaged or if the paint just has stress cracks

I am looking at a carbon framed road bikethat has me concerned.On the topside of the bottom bracket,drive side there is a very small hairline crack in the paint.The seller states that it has been ...
13
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9answers
6k views

Removing Seat Post rusted into downtube

I have an old steel frame (Columbus Number 2 I think) that has the seat post (Suntour Superbe Pro - see, I said it was old!) rusted in. I have tried lots of WD-40 but it will not budge. Any tips on ...
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0answers
178 views

Lowrider style bent forks techniques

Would a 24 inch bent fork fit on a 20 inch frame? Is there even a 24 inch fork? Would a 26 inch fit? Also if it doesn't fit in could I just add to the 20 inch - would you be able to extend it making ...
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1answer
1k views

How to pull a carbon seatpost out of a carbon frame?

How do I pull out a carbon seatpost on a carbon frame? It seems so hard for me... Do I need a special tool, or just ask help from a local bike shop? done with the seatpost. I made the frame and ...
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2answers
259 views

Where can I find touch-up paint?

I need grey touch-up paint for the headtube on a 2014 Whyte T-129s. How can I find out which colour exactly to buy?
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3answers
245 views

Creaking sounds from the saddle tube?

I've started to hear creaking/clicking sounds from the saddle tube. Is the frame giving up? I could look for a longer saddle post, if that would relieve some of the strain on this part of the frame, ...
2
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1answer
2k views

Is it possible to run standard mechanical shifting on a Scott Foil Premium frame?

The Scott Foil Premium is the highest end frame available from Scott Sports, and it is designed to run an electronic drive train, routed internally. The original reports were that this frame would be ...
9
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8answers
43k views

What are the differences between a mens and womens bike frame?

Why do women's bikes have a diagonal bar in the frame instead of a horizontal frame? Is this the only difference? Sorry if this has been asked (but I cannot find it by searching) and I also just ...
3
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3answers
673 views

Is a tri frame suitable for track racing?

I'm considering getting a fairly cheap bike built up for track racing at my local club, reusing my old carbon tubular road wheels. However, most track frames have a narrower hub spacing (120mm) ...
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3answers
300 views

Could you make a bike frame out of 24kt gold?

Obviously it's a silly idea. Apart from the cost, it's far too dense and not stiff enough to be a good frame material. What I'm asking is would it be possible to make a ridable from gold? What ...
2
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1answer
160 views

What's the best way to remove stick-on frame protectors

I need to move a couple of frame protectors from the head tube of my bike but don't want to damage the paint in removing them. What's the best way of getting these off?
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2answers
5k views

How many years an aluminium frame lasts in a touring bike?

How long does an aluminium frame lasts in a touring bike? [Removed extra questions to be clear.] Background So far I preferred aluminium vs. steel for many reasons, but if steel lasts ...
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4answers
456 views

What are the advantages of a custom frame for a touring bike?

I'm building a new bike for touring while traveling, so I want a break-apart frame with S&S couplers, like the Salsa Vaya Travel, or another steel touring frame retro fit with couplers. I want a ...
5
votes
3answers
2k views

26“ vs 28” wheels for touring

I was told by a friend that 26" wheels are better than 28" wheels for touring. Is this true? What are the pro's and con's? I'm told that 26" wheels are stronger for their spoke count. What are the ...
2
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2answers
1k views

Frame differences between 700c and 29er?

Before you answer: no matter what bike I would change tires to 2" slick front, 2" semi-slick rear, so in other words, tires in this question does not play role (now I have 26" MTB and I use 2.35" to ...
12
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3answers
2k views

What are the advantages of investment casting?

I'm starting to see more and more frames using investment casting for head tubes, drop outs, seat tubes, etc. Such as the new WTP c.r.e.a.m. frame . It looks nice, but I'm suspect on how much more ...
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1answer
397 views

Fitting questions - Effective top tube vs horizontal

I'm stuck in understanding size tables of a bike. For example this size chart: Am I right in my thoughts? Effective top tube (ETT) is horizontal value so, it's B1 on the chart. BS is the length of ...
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2answers
268 views

What is the measurement in inches of a XL frame?

What is the conversion of a (XL) frame to it's measurement in inches?
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0answers
551 views

Can someone help identify my bike frame?

I needed to replace my old fixie frame with something lighter, and with a standard BB shell. So I came across this one online. The seller bought it off a friend who stripped and painted it, so any ...
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1answer
245 views

Can anyone identify this frame?

I've recently picked up a 'beach cruiser' frame from a local free-add site. It was claimed to be a Huffy, however I can't seem to verify this (I've emailed Huffy and I'm awaiting their response, and ...
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2answers
5k views

Carbon Fiber vs. Aluminum [duplicate]

I am a new cyclist who is on my 2nd year of biking. I bought a cheapo Schwinn MTB at Walmart to start with but now I want a real road bike. I currently have $2k saved up and am looking into a ...
2
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2answers
345 views

Can I swap my 49cm fixie frame with a 47cm, with every other part fitting right on the new frame?

I have a 6ku fixie, 49cm frame. There is not much clearance between the top tube and me. So I wanted to buy the 47cm and change all the parts on that one, instead of purchasing a whole new bike. Is ...
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3answers
2k views

Is hydroformed tubing good?

I've recently saw that a bmx frame was hydroformed.Is it better than not hydroformed?
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0answers
174 views

Help identify this frame

I'm not sure what brand this is at all. Any help would be much appreciated. I've tried looking up the serial but i am unsure what the last serial number is. It appears to be a "b" or "6" but I am ...
2
votes
1answer
867 views

Protecting carbon bike frame after a small chip?

My bike frame is carbon and it recently got a small chip. It's about the size of a pinky fingernail in size. Should I do anything to treat the chip to help prevent it from getting worse? Here's a ...
0
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1answer
193 views

Replacing 28in wheels with 26in

I'm told that when touring (carrying a big load) you're much better off to have 26" wheels than 28". But most second-hand bikes seem to come with 28". Is it possible to replace the larger 28" wheels ...
5
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1answer
4k views

How much does non-ideal frame size matter?

I have an opportunity to buy a barely-used Allez Elite for a very small amount of money (around $100). However, its frame size may be slightly different than the "ideal" size for me. If this ...
0
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1answer
311 views

Allez vs Secteur [closed]

I'm buying my first road bike. I don't plan on racing, but riding long distances, and comfort is one of my top priorities with quality. I tried a 58 Allez in my local shop and it felt like a dream but ...
3
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2answers
2k views

Tight Seatpost Installation

I'm having a bit of a problem installing my seatpost. I have a 31.6mm carbon-wrapped aluminum seatpost which fit perfectly fine in my previous aluminum frame. Unfortunately, that frame cracked, ...
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2answers
478 views

difference between rack mounts and fender mounts?

is there a specific way that bike builders build mounts/eyelets for racks for panniers and eyelets that hold fenders? I'm specifically thinking about eyelets on the rear dropouts. I know that if a ...
7
votes
5answers
2k views

High-quality commuting bike with “women's” frame

My wife wants a high-quality commuting bike (riding almost an hour each way five days a week). However, she wants it to be compatible with skirt-wearing and, as a result, refuses to have a frame with ...
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6answers
850 views

“Creaking” noise from headtube/handlebar

I have a steel frame (Columbus steel, made by Dancelli), and when I put weight on the ends of the handle bar, I hear a creaking noise from the headtube. It might not be the handlebar because I tried ...
4
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1answer
273 views

Frame that takes 700x35

I'm looking for a new frame. My only requisite is that the frame should be able to take 700x35 wheels (the type of wheel I want). How can I know if a frame is suitable or not for these kind of ...
11
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3answers
871 views

Why do some triathlon seatposts go straight up and down instead of at an angle?

Why is it that some triathlon bikes have a seat post that adjusts straight up and down instead of the more standard axis that aims at the bottom bracket? This means that if you raise (or lower) the ...
4
votes
4answers
5k views

Type of cycle for losing weight and staying fit for a beginner [closed]

Over a year ago I was diagnosed with a collapsed arch in my left foot and despite trying many times I have not been able to get back on the treadmill. I have been thinking of getting a bicycle to ...
2
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2answers
3k views

Knowing what bicycle frame material I have

I have a bicycle frame that's really heavy. It's a mountain bike frame with shocks, so I decided to replace the entire frame with a city bike aluminum frame(I only use the bike if I have to pick ...
13
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5answers
9k views

Should my foot be able to step flat on the ground, when I sit on a bike seat?

I was wondering, for a correctly sized mountain bike, or hybrid, should I be able to place my foot flat on the ground, when I sit on the bike seat?
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1answer
493 views
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1answer
404 views

Help please to identify my Tandem

I have just purchased an old tandem, but don't know the make or year. Can anyone help me to identify it. The frame is steel and it has a frame number of 452599. There are no decals fitted but I attach ...
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1answer
137 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?
5
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1answer
255 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
votes
4answers
4k 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
516 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
votes
1answer
216 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
votes
2answers
332 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 ...
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9answers
9k 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 ...
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2answers
649 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?
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4answers
438 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
votes
2answers
4k 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?