Questions tagged [crack]
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33
questions
4
votes
3answers
627 views
Is this crack on my seat stay mechanically safe?
Recently picked up a steel frame and realised there was a crack on one side of the rear triangle, right by the seatpost. Crack seem to be contained towards the outer part of the tube so does not seem ...
4
votes
4answers
713 views
WTB Horizon 47c - small crack in the middle of the tire
I’m headed off on a 3 week bike trip and just now noticed a small hole in the middle of running tread of my front tire. I have a few more days before heading off into a more remote area and wanted to ...
1
vote
0answers
167 views
A carbon fracture or a paint crack?
I’ve spotted this crack on my carbon fork, only on the left side. The crack is exactly at the joint of aluminum dropout and carbon body of the fork. My bike is a 2010 Trek Madone Project One (OCLV ...
1
vote
1answer
87 views
How to fix a crack in a silicone grip
I have a brand new pair of silicone grips. Somehow, one of the grips got a crack. Its mostly an aesthetic issue, as no fragments of the grip where lost.
Is there any glue appropriate for silicone to ...
2
votes
2answers
215 views
Is this cracked?
I am buying a bike from eBay and before I bid on it I just wanted to know what you though about one of the pictures. The bike is carbon and it looks like some paint has come off. What do you think ...
1
vote
1answer
337 views
Paint scratch or carbon crack?
I might just be overly paranoid, but does the line in the image (to the left of the glare) look like a paint scratch or could it be a sign of a spreading crack?
3
votes
2answers
600 views
Noticed a scratch on my carbon steerer, should I be worried?
Pictures: https://imgur.com/a/0cWtcsS
My nail gets caught in the center and it feels sort of rough. I had my stem tightened at 4NM and the headset seemed to be properly adjusted. I have once ...
4
votes
2answers
2k views
Cracks on tire - still safe to ride?
I just experienced some uncommon cracks on the tires (Schwalbe Durano Plus)
The tires are pretty new (less than half year old, and used max. 1500 km).
I inflated 6 bars in the tire, and according to ...
11
votes
2answers
3k views
Crack in fork or just paint
Yesterday I saw something like a crack in the carbon fork of my roadbike. Now I don't have any clue if this is a really a crack or just the paint.
Maybe someone can help me or tell me how to find out. ...
6
votes
2answers
554 views
Paint crack or more?
I am looking to buy a used bike: a Cannondale Super Six Evo. The seller has sent me a picture about which I am not sure what is wrong. It seems like a paint crack, but can experts share their opinion? ...
6
votes
3answers
971 views
Crack/fissure in the headtube
My 2007 Ghost AMR 5700 developed a crack or fissure at the upper end of the headtube. I do not know whether it developed over time or whether there was a specific event leading up to it; it looked ...
2
votes
1answer
1k views
Cracks on the side of fairly new tire
Today I noticed that the sides of my rear tire has these cracks
The tires have been installed last June, and since then have always been used at the proper pressure (initially at the low end of ...
2
votes
1answer
643 views
Very loud cracking/creaking sound on the bike?
On bumps a very loud click sound comes from somewhere on my bike.
When I have my weight on the seat and there is a bumpy road, it's a scary loud noise since 2 days. It developed slowly since one ...
6
votes
2answers
816 views
Cracked frame riding into the back of car, what's salvageable?
Stupidly rode into the back of a car, due to a moment's inattention. I pretty much hit it at full pelt, though I was riding uphill at the time.
The frame cracked, as this photo shows. Any idea what ...
8
votes
2answers
1k views
Is this a cracked frame?
Here's a pic of my Rocky Mountain Altitude 750 2014. It's the area where the top tube meets the down tube / Bottom bracket.
Is this a cracked frame or just cosmetic problem?
Thanks
7
votes
4answers
3k views
Cracked chainstay weld — now what?
Yesterday while riding my Surly Ogre around town I noticed that it was making a weird metallic popping noise on the left downstroke. When I got home to take a look I was rather surprised to find that ...
3
votes
1answer
2k views
How to check carbon frame for cracks
Yesterday, a little boy hit my carbon framed road bike with his little bike while I was already standing. He was not very fast, the normal 'little-boy-dreaming-on-his-bike'-speed. So, nobody got hurt, ...
7
votes
1answer
943 views
Cracked seat post
Just been cleaning my Canondale CAAD8 and noticed these cracks in the seat post - they look like cracks in some kind of outer covering and wondering if someone can tell me how much of a problem they ...
7
votes
1answer
1k views
Rim cracks on spoke adjustment holes, how much should I panic?
So I have a RODi Rims SKORPION rim and I've noticed that there are cracks on the holes for spoke adjustment. They all appear to be on the left side of the bicycle and I'm not sure if they were here ...
4
votes
3answers
434 views
Did my bike frame crack?
during my morning ride today, I slipped and fell down, and as a result, a crack formed on my carbon frame. I have checked the entirety of the bike and this is the only crack, but I am not sure if I ...
0
votes
1answer
280 views
Left crank cracks when the left pedal is pressed
My crank has a little slack and cracks more and more when I pedal, but only on only with the left pedal.
What could be the cause(s) of this ?
Video of the loose crank:
...
5
votes
3answers
2k views
Should I ask for my money back - crack in Titanium frame
About 2 years ago I got my new bike - an Enigma Ti bike. The frame was customised for Di2 and I had hydraulic disk brakes fitted. An expensive bit of kit that was supposed to last forever and make my ...
1
vote
1answer
706 views
Crack on Carbon Frame?
I see a crack on the carbon frame of my bike
https://www.dropbox.com/s/flqrue2plzyqki9/DSC_0118.JPG?dl=0
The bike is around 4 years old but I just notice the crack line now. I think there was ...
3
votes
3answers
328 views
Crank axle cracked on 1972 Centurion, looking for guidance on how to replace
As I said, I have a 1972 Centurion. Today while riding I hit a pothole as I was coming down on my left pedal. I immediately felt like my pedal was moving around in ways it shouldn't. Stopping to look, ...
4
votes
4answers
12k views
Should I worry about a chipped carbon mountain bike frame?
The other day while I was racing my Specialized Stumpjumper I noticed a chip on the frame. It's on the rear support bar right behind the seat post between the rear tire.
My teammate who is a mechanic ...
4
votes
1answer
1k views
What caused this seat clamp / frame failure?
Here's my "long distance" ride, which is an old steel MTB without suspension.
I picked it up by the saddle to move it and felt some play, I thought the saddle rails might have been loose, but as per ...
6
votes
2answers
14k views
Is it safe to ride on cracked tyre?
I have a cracked tyre on my Road bike. I think I put it in the gazebo and exposed it to the sun.
It's cracking along the tyre wall, in continuous fashion.
Would it be safe to ride on those crack ...
5
votes
6answers
10k views
What can I do about a cracked frame?
I noticed the other day that my frame has a crack in it! I believe that it's my seat post causing the problem. A couple of questions really, a) how serious is this? and b) can it be repaired?
Edit: I'...
9
votes
4answers
6k views
Titanium frame has a crack - advice needed
I've found a Titanium bike frame on eBay. It's very cheap and the owner says that it has a very small crack on the seat tube where it connects to a bottom bracket. See in the image above:
I've never ...
1
vote
2answers
2k 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 ...
0
votes
2answers
808 views
FSA Gossamer Crank Spider cracked
I've got an FSA Gossamer pro MegaExo compact crank set. Lately, while tightening the bolts on the crank spider, it cracked (see picture). I know FSA has recalled the left crank because it turned out ...
21
votes
7answers
6k views
I keep breaking my road frames - why?
I've gone through four five frames in the last decade or so, all from different manufacturers, all steel but both lugged and welded both steel and aluminium. Every one of them has eventually developed ...
5
votes
1answer
1k views
Experience with welding Titanium frame?
My Litespeed Tachyon, a 1996 model, of which I am the second owner, (So Litespeed will not honour the warranty) has now developed its 3rd crack.
First was in the seat tube above the deraullier and I ...
