Frames or components made from carbon fiber, possibly even about carbon accessories.

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1answer
364 views

How to fit BB bearings to install Ultegra Crank on road bike Wilier Cento 1

I've bought a used Wilier Cento 1 carbon road bike frame (not the new Cento1SR, but the previous model). Now I would like to transfer all Ultegra 6700 groupset components from my existing bike to it. ...
7
votes
2answers
3k views

How does stiffness in carbon frames increase speed?

I have a Specialized Roubaix with a 7r carbon frame; the Tarmac has 11r. Will I notice a speed change if I ride "exactly" under the same conditions? Does the additional 4r = more speed? I am thinking ...
1
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1answer
54 views

Carbon-wrapped Aluminum seatpost?

I have the seatpost shown in the pictures below. It came on a 2010 Specialized Tricross. It looks like Carbon fibre on the outside, but when you look at the open end of the tubing, it actually looks ...
4
votes
1answer
212 views

Difference between UD, 3K and 12K carbon finish?

What does UD, 3K, 12K carbon mean and how do they differ?
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0answers
48 views

How to polish carbon frames?

My carbon frame has some slight scratches and some black gunk around the seat stays. What is the best way to polish the frame to bring it back to its original appearance? I was thinking of using a ...
1
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1answer
128 views

Do Carbon Wheels Stay True Longer Than Aluminum Wheels?

Does a race quality carbon wheel set stay true longer than an aluminum one (with equal abuse/mileage) ? It seems like the properties of carbon would resist flat spots and warping better than ...
12
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7answers
22k views

Carbon bikes make me nervous. Can you ease the tension?

Is it only me, or do Carbon bikes make others nervous! I realize that carbon fibre is strong, but for some reason, having a bike that isn't made out of metal seems like asking for trouble. My main ...
2
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4answers
524 views

Does anyone sell a direct-drive recumbent with no handlebars?

This document well describes the benefits of a direct-drive recumbent. Is there any carbon-frame recumbent, commercially available, that implements all its recommendations. And what are the pros and ...
0
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1answer
71 views

Does a carbon frame need two-bolt seat clamp?

Does a bike with an alloy seat post and a carbon frame need a seat post clamp with two bolts? Most clamps these days seem to be either quick release or single bolt. Is that safe to use with my set up? ...
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2answers
172 views

How to repaint a Carbon bike frame?

I have recently purchased a Specialized Roubaix SL4 Elite Disc carbon frame bicycle - But I am not particularly happy with the colour. It is charcoal and white. I like to have a brighter colour. Is ...
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0answers
75 views

What's the best way to fix carbon to titanium?

I'm building (experimenting if you wish) something out of the old bike parts and I need to fix two parts together one titanium and carbon. Basically the parts are two tubes one made of carbon of a ...
5
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1answer
563 views

Carbon Wheel Heat Bending

After riding about 800m downhill, I got this: BTW, this is TriAce Wheelset for Dahon Mu Ex 2014. Do you think this is safe to ride? Can I repair this?
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4answers
406 views

Would a person standing on the top tube damage a carbon fibre road bike?

I was riding my aluminium bike and I met some people who had been trapped in a locked park, so I helped them escape by holding the bike against the fence and letting them stand on the top tube to ...
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2answers
189 views

painting an aluminum/carbon frame

I have a frame I would like to get repainted. It is a composite of aluminum and carbon fiber (Al main triangle, carbon fiber seat/chain stays). The carbon fiber is unpainted (maybe a clear coat) and ...
2
votes
1answer
87 views

Carbon fork torque

I notice that my fork is squeezed together when I tighten the quick release mechanism. Is it possible then to over torque the quick release and squeeze the fork too close together?
5
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3answers
2k views

Can a carbon fiber mountain bike handle cool/cold weather?

It is late summer in the US and I am starting to look forward to autumn and winter mountain biking. I have a carbon fiber frame though. Didn't get to ride it last winter due to a broken collar bone ...
2
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1answer
272 views

Recessed brake pivot nut stuck in carbon fork

The recessed pivot nut for my front brake calliper (no. 4 in this diagram) has seized inside the fork. I've managed to remove the brake calliper itself by unscrewing it from the front, but the nut is ...
2
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3answers
308 views

Carbon fibre vs aluminium for racing

I've been commuting on a mountain bike these past 3 years. Now I want to get into road bike racing. Is it worth saving up money over a few months for a carbon fibre bike? Or should I just go and buy a ...
3
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5answers
26k views

What are the pros and cons between an aluminium and carbon frame?

I'm after a mountain bike and I've narrowed it down to the Cannondale F29 (based on reviews, plus I like the look of the bike). My question is, should I go for the carbon bike or the alloy bike? I'm ...
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0answers
100 views

2015 Time Collection

I'm a usa cycling road racer and I recently won a Time ZXRS frame in a team raffle. I'm very excited, and I know this makes me sound really spoiled, but every time I've looked on the Time website I ...
2
votes
1answer
144 views

Can lock on grips go with carbon fiber handle bars?

How prudent is it to install lock on grips onto carbon fiber mountain biking handle bars? Are there some grips that will work and some that won't?
26
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6answers
27k 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 ...
5
votes
1answer
217 views

Carbon fiber chip

See the white mid picture in the shape of a canine tooth. The sticker / veneer came off / separated. Is it something I should worry about? Is there something I can do? Niner Air Nine Carbon. I ...
0
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2answers
443 views

Is there a device for protecting your carbon-soled road shoes from the cleats?

I recently came across this product:, which is a stainless steel shield to place between your mountain cleats and your carbon soled shoes, to prevent damage to the carbon. Has anyone seen something ...
4
votes
1answer
955 views

Felt carbon steerer compression plug removal

How do I remove a compression plug (aka. expander bung) like this one? Most guides I could find assume that there's a 6mm hex Allen opening that allows tightening/loosening the plug but that's ...
1
vote
1answer
431 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 ...
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5answers
29k 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 ...
2
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5answers
932 views

Advice needed re Carbon Fiber vs Shocks

I am an occasional rider who bought my last bike 15 years ago (an all-aluminium Saracen with shocks). I've put about 400-500 miles this year and am thinking of taking up one of the Cycle to Work ...
2
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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
517 views

Are all the Ultegra brake pads the same?

I have a road bike with Shimano Ultegra Di2 6870 goupset. Today it was my first long ride with it and alsmost instantly I noticed that the brake pads are not for carbon rims. I tried searching on the ...
6
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2answers
2k views

Carbon 700c Wheels: What does 33/50/60/88 mm refer to?

I've been browsing 700c carbon rims on ebay, and noticed most are listed with the 33/50/60/88/etc mm in the title. What does this represent? It doesn't appear to be spoke/nipple holes. ...
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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 ...
8
votes
2answers
488 views

Benefits of newer racer bikes over older ones?

10 Years ago, when I was 14, I got my first road bike. It costed around 1000 € (~1350$), and I have been using it every year. I have cycled at least 1.000 km every season. Now, I have started to ask ...
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2answers
196 views

Carbon Fork Noise

I've got a 2 month old Cannondale Evo Supersix. When I take it over a rough patch of road (far too many of these in Wiltshire!) there is a loud noise coming from the forks - it's obviously caused by ...
5
votes
2answers
1k views

Do I need to be concerned about a carbon frame if I attach a bike trailer?

We have a bike trailer with the hitch attached to the rear axle. The frame of my wife's bike frame is part carbon (right around the rear axle), which I understand is more brittle than other materials. ...
2
votes
1answer
830 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
413 views

Cheap Carbon Fiber Wheels

Right, I guess inserting where they're made in the title would be a little politically incorrect but essentially the link below would give you the exact product that inspired the question :- Cheap ...
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, ...
9
votes
3answers
896 views

Should I avoid sitting on top tube on my carbon bike?

In another bicycle discussion forum I encountered a thread about possibility to damage carbon frame by sitting on top tube while stopped. I see some sense in it, as generally tube walls are a lot ...
8
votes
2answers
2k views

Installing a lock mount on a carbon fiber frame

Let's ignore the question, for a moment, of should I install a lock mount on my new TCR Advanced. But assume that I want to. Given that the frame is carbon fiber, should I be worried about the ...
2
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2answers
311 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 ...
6
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1answer
160 views

brakes for carbon rims

I'm considering switching from alloy to carbon wheels - just a question regarding that & brakes. Would I need different pad materials from the standard sort of pad material (or even a whole ...
0
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1answer
101 views

Getting started with carbon fiber DH/XC wheels

I'm looking for some carbon fiber DH or XC wheels and don't know where to start, as I'm new to this. Could you give me some help on where to get started?
5
votes
1answer
419 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 ...
3
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3answers
238 views

Carbon bike specific maintainance

I am about to get my first carbon bike next spring, it's a MTB with a carbon frame with some aluminium components. What are the things I should do and should not do, to avoid damaging it by improper ...
0
votes
1answer
438 views

Full carbon fiber 29er suspension mountain bike from AliBaba [closed]

Does anybody have any experience with this bike? Full carbon fiber 29er suspension mountain bike with Deore XT 30 speed groupset I'm looking to buy my first expensive mountain bike and trying to ...
1
vote
1answer
330 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
votes
2answers
344 views

Carbon cranks care?

I have carbon cranks (SRAM S-2200) on a new bike. The side is quite protected but the bottom part, where the pedals are fitted, is not. Hitting rocks on the bumpy road is sometimes inevitable. How ...
5
votes
2answers
880 views

Is there a way to check for non-visible damage on a carbon frame?

I had an accident on my carbon road bike. As I look at it, I do not see visible damage to the frame or forks. Is there a way that the frame can be tested for damage and if so, how do I get this ...
5
votes
2answers
2k views

How should I prepare a carbon frame when I want to swap in a new bottom bracket?

My four-year-old, carbon-framed road bike has developed a case of creaky cranks. I only hear creaking when pedalling hard, when I pedal more softly it just sounds like it has always done. Given the ...