Bicycle Mechanics - Rebuilt rear road wheel pinging.
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06-03-03, 08:44 PM
I had my rear wheel rebuilt at a lbs. I had it rebuilt because I had broke 3 spokes on the drive side of the wheel. The 2nd time it happened the mech said that it would need to be rebuilt because it was getting too far out of true and that some spokes were now stretched. So they installed all new spokes,trued, retensioned etc. When I rode my bike today for the first time since getting my wheel back I heard pinging from the spokes in the rear wheel. My question is, is this normal? Oh yeah it still has a couple of wobbles in it too. I am thinking about taking it back. They charged me $60.00 and I think a better job could of been done. Let me know what you all think. Especially you guys that work in the lbs. Thanx all.
06-03-03, 08:55 PM
Did it ping a bunch when you first rode it and then quit? If so then the guy who built it did not stress relieve it properly and it after the pinging it would show some wobbles. They need to fix it up for you. I would have charged $40 labor including spoke washers(takes care of stress points on used hubs), spokes would be $16(14g) to $24(14/15g). If the rim had been knocked way out from broken spokes I would have reccomended a new rim.
06-03-03, 09:04 PM
Spokes are wound up, not stress-relieved, or both. A properly built wheel doesn't ping.
06-03-03, 09:12 PM
Hey Rev. I was hoping that I would hear from you. Yes it pinged 3-5 times then it quit I rode it for 10 miles. I put it in my trainer that is when I noticed that it still wobbles. I was out looking at it a little while ago and I found that the rear tire is now flat also. when I took it into the lbs I asked the guy " if it was your wheel what would you do with it"? And he said " I would rebuild it", so I went with that. I guess I will take it back in tommorrow. Thanx for your input, it is much appreciated.
06-04-03, 10:49 PM
Well I took the wheel back to the shop today. And the first Mech. told me that he wouldn't of rebuilt a wheel with the used rim. And I said wouldn't that be building a wheel not rebuilding? I in formed him that the mech. who did the job recommended rebuilding the wheel. With the existing rim and 105 hub. He said that the guy made a mistake. He then proceeded to straighten the wheel. Tightening and losening the spokes. After doing this for a few minutes he says"These spokes are way too tight I better loosen some of them. Now he is talking about the spokes that he has just been tightening. Then he says wow look the rim is cracked at the nipples. He totally acts like these are old cracks and he didn't just do it. I asked well if those were already there why didn't the guy who was rebuilding the wheel notice it. He says again" he made a mistake, which is weird because he is a good wheel builder". Then he asked another guy to try and straighten the wheel and shows him the cracks at the nipple holes. He asks if he thinks the wheel will fail. The 2nd guy says Well I straightened it as best I could. And said ride it until it fails then comeback and we will sell you a new wheel. Yeah right. Also I pointed out that the tire went flat because the rim tape wasn't on straight and a nipple rubbed a hole in the tube. I even showed him by putting the valve stem in the rim and pointing out how the hole and the nipple that wasn't covered linedup. One of the mechs (3rd guy) said they should give me a new tube. The other guy acted as if he didn't even hear him. So I left. After getting home I've just gotten more ticked off about this so I am taking it back tommorrow and talking to the manager. I think I should get my labor fee back. 1st for the crappy initial job they did,2nd for damaging my rim. How does this all sound to you guy? give me your opinions please. Thanx.
06-05-03, 08:35 AM
yeah, sounds like a reasonable approach. I would definitely talk to the manager but don't read him the riot act straight away. That is too bad. Definitely sounds like the mechanic made an error by not stress relieving the rim in the first place, not to mention the next mechanic who may have ruined your rim.
06-05-03, 10:35 PM
Well I went back to the LBS that rebuilt my Wheel today. I explained everything to the manager. And after he examined the wheel he assured me that it wouldn't fail in any catastrophic way, and that I could use it safely. Which is good because I already have a piece of metal and 6 screws in 1 arm from a 25 mph crash into car, and I don't want another. Anyway he returned 1/2 of my labor cost,gave me 2 new tubes to replace the one that went flat. And If I go back and buy a wheel set that is already built or have them build me a new set he will give me a considerable discount. So I figured that was fair and I didn't have to read him the riot act. So what do ya'll think ? Let me know. Thanx.
06-06-03, 08:57 AM
I think you should call it a wash and then go find a new shop that employs a master wheelbuilder. Start by having the wheelbuilder inspect the suspect wheel (a second opinion is always in order; I wouldn't take the first shop's manager's word for it) to confirm that it's safe to ride.
06-06-03, 12:31 PM
The best thing I've done in the in the past few years besides learning to read music and pulling money out of stocks, is learning to build my own wheels.
I dunno, any cracks on a rim sounds bad to me..I mean, these are wheels we are talking about, how can they not "fail in a catastrophic way?" Besides getting a flat or something, which can be catastrophic if you aren't prepared.
I wouldn't support a shop that doesn't make your safety a paramount concern.
I would give the shop this chance as their last to keep you as a customer.
The wheels should't catastophically fail. Worse case scenario is that one or two of the spokes will pull thru the nipple holes in the rim. Of course that will eventually happen if the rim isnt replaced soon. I would say if a wrench didnt catch the cracked rim when he rebuilt the wheel, he made a huge mistake. I agree wit the earlier post that suggested finding a better shop with a better wheelbuilder. Especially since the shop never fixed the initial problem.
06-06-03, 07:46 PM
There's no proof the cracks are their fault... spokes may have been overtensioned from the get-go. And maybe not. Doesn't matter, I second Rich Clark's opinion. They seem to have been giving you the sleaze treatment, and the rim tape issue is just lame. Too much is riding on your wheels (sorry, I couldn't resist). Try another shop.
06-06-03, 09:37 PM
I had a great response written but thanks to this piece of crap I am typing on it is gone. So to paraphrase:
The wheel was cracked when the guy started working on it, it would be really hard with a spoke wrench to put enough tension in to crack the rim. This means it was probably cracked when it was rebuilt.
What I reccomend: If you have a brand hub, reuse it as long as the bearings are OK. Use the nicest rim you can afford. Use brand name spokes(14/15DT is my favorite). Use brass nipples. When using a used hub use spoke washers, they eliminate stress risers and give a better build. If the shop does not have spoke washers go to another shop. If the shop does not have an older guy that looks and acts like me, go to another shop. AND, if the shop does not have the inside poster from Queen's album "Jazz" tacked up somewhere(where it is not visible to the general public) go to another shop.
Hey now, what about young guys that act scarily like you, Chuck?
As Chuck mentioned, it's highly unlikely that the cracks were caused by the guy attempting to true the wheel up. The guy that built it somehow managed to miss the cracks and then didn't stress relieve, which is required if you're hoping for a remotely decent build. These guys shouldn't be building your wheels.
06-07-03, 08:39 AM
Hey everyone thanx for all of the great input. I am going to find a new shop in the area with a master wheel builder. So I can get a wheel set that is built right the first time. Thanx again everyone.
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