Tag Info

Hot answers tagged

8

If you look at titanium frame bikes on the web you can see their warranties. Most have very long or life time warranties that cover everything but crashes and deliberate damage to the frame. So I would assume this frame was involved in a crash. There are three types or cracks in titanium frames (from best to worst): Weld crack seam crack (titanium comes ...


8

It is very likely that you are putting too much stress on the frame when you are cycling due to your power stroke. It took me a long time to train myself to avoid standing and powering the bike through the acceleration of starts, or even powering through it while sitting. I've long since learned that while I have plenty of power, I actually am able to ...


7

There are certainly techniques that will put unusual strains on the bike, track stands could be, I certainly think that excess use of a turbo trainer does. I (try) to do track stands where possible and my commute bike (~150k per week for a number of years) only died when I crashed it ... Quality of the ingredients is certainly one factor. Another could be ...


7

I had a run of bad luck with road frames quite a few years ago, going through about three in rapid succession. Like you, the faults were always in different places. Since then I haven't had any troubles, but I did start using a slightly higher upgrade of frame materials. I currently ride about 120K a week,mainly commuting, doing track stands wherever ...


6

I am going to get beat up for this but steel frames don't fail catastrophically. Pull that post. If the end of the post is in the middle of the crack then look for a longer post. Get a seat post that extends at least 2" below the bottom of the crack and ideally 4". The post reinforces the frame. Mark the two ends of the crack. If the crack grows ...


6

It's hard to tell from the photo ( is that large vertical streak said crack? ), but if your frame is cracked, don't use it. Riding on a cracked frame is risky as it could result in a catastrophic failure / injury / death. It looks like that's probably a steel frame, so find a local frame builder ( not your buddy who's handy with a welder ), and depending on ...


5

I think this question has gone a while without an answer because it's a little unclear what you want to do... do you want to do it yourself? Or by 'experience with welding' do you mean 'experience with having welded'? Either way, I don't have an answer for you, because I don't have direct experience welding titanium, nor do I know any welders in NJ, but I ...


3

Honestly, how much did this bike cost? It looks to be at least 30 years old, judging by the tire and brakes we see in this picture, and even when it was new, I doubt it was worth repairing this kind of damage. The cost of repairing it would be far in excess of buying a new bike. Now, if you'd spent $1500 on it, even 30 years ago, well, maybe it's worth it. ...


3

Am I looking at the right thing? The little line running across the seat tube about 1cm above the bottom bracket? It's hard to say, but personally I'm not sure that's a crack at all. It looks more like a scratch. I say that because: a) it looks shallow, and b) that is a really, really weird place for a crack to occur. There are four types of stress ...


2

I broke two steel frames in different ways, but both were used for commuting under heavy loads. I stretched the rear dropouts of a frame built for a 7 speed hub to fit a 9 speed hub, and this put stress on the chain stays just behind the rear bottom bracket. After about 6 months of daily riding, the right chain stay cracked. I rode my bike head on and it ...


2

Riding without enough seat post in the bike is a real problem. Not only do you increase the mechanical advantage of the seat post against the seat tube but you put stress where the bike was probably not designed to take stress. And you are putting stress in the area of the top tube and seat stay. You state you have been riding with a longer post. Have ...


2

Dawes Galaxy? Looks like an older model - so a good quality touring frameset - possibly Reynolds tubing. Anyway, what price do you put on sentimentality? I'm not sure where the idea of long seatpost comes from as the picture doesn't show it. But if you are UK based a company like Argos cycles can easily fix that frame for you. Its a welding job - so the ...


1

A couple of years ago we had a new seat tube fitted to my wifes bike (a 20 year old Claud Butler Lady Dale) after it sheared where it joined the top tube - this was on a step through frame. Fortunately we live close enough to Roberts, one of the few frame builders in the UK, to be able to deliver it. I had to strip the frame for them and it cost about £150. ...


1

You're better off getting on the phone to FSA as opposed to asking your questions here. If it's a common problem they'll be the ones to know and they'll likely be eager to set it right. I can tell you that I've had no such problems with my Gossamer cranks in many years of ownership. If I were to speculate I would say that that is a defect and if the cranks ...



Only top voted, non community-wiki answers of a minimum length are eligible