Broken spoke again and again. Help!
#26
#27
fwiw. these are two souces of spokes I've seen endorsed a lot on bf.
https://shop.ebay.com/childhood_dream..._sop=15&_rdc=1
https://shop.ebay.com/childhood_dream..._sop=15&_rdc=1
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Bikes: 1996 Eddy Merckx Titanium EX, 1989/90 Colnago Super(issimo?) Piu(?),1990 Concorde Aquila(hit by car while riding), others in build queue "when I get the time"
Bikes: 1996 Eddy Merckx Titanium EX, 1989/90 Colnago Super(issimo?) Piu(?),
#28
Senior Member
Joined: Dec 2010
Posts: 6,682
Likes: 4
From: Above ground, Walnut Creek, Ca
Bikes: 8 ss bikes, 1 5-speed touring bike
although it is possible that the problem is due to inadequate spokes, it is also possible that the rim itself is not round or laterally true (or flat). if so, in order to make it true, the spoke tension is necessarily uneven resulting in premature spoke wear.
a new rim and spokes may be necessary as previously mentioned.
a new rim and spokes may be necessary as previously mentioned.
#29
Señior Member
Joined: Sep 2005
Posts: 13,748
Likes: 10
From: Michigan
Bikes: Windsor Fens, Giant Seek 0 (2014, Alfine 8 + discs)
If you're breaking spokes a lot and the breaks are at the spoke's elbow, they're not tight enough and are suffering from cyclic stress. Have your wrench tighten them right the hell up.
I had a factory wheel that was crap and broke a lot of spokes. I replaced it with a $100 wheel from Wheelsmiths and it's lasted 16,000 miles without any trouble, never even needed re-truing.
I had a factory wheel that was crap and broke a lot of spokes. I replaced it with a $100 wheel from Wheelsmiths and it's lasted 16,000 miles without any trouble, never even needed re-truing.
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Work: the 8 hours that separates bike rides.
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#30
member
Joined: Oct 2009
Posts: 319
Likes: 0
From: SF bay area
Bikes: 33yr old mtn bike
I had the same kind of problem on my 32 spoke, 26" rear wheel, breaking more than 10 spokes in a year.
I heard it could be a spoke tension problem, even though they did seem tight enough and the wheel was true.
Then I bought a Park spoke tension meter, tightened them all up to the proper range (some were 10% to 20% too low).
Since then, I check the tension once in a while because some do loosen a bit over time.
I have not broken any more spokes, so I'm happy about that.
I heard it could be a spoke tension problem, even though they did seem tight enough and the wheel was true.
Then I bought a Park spoke tension meter, tightened them all up to the proper range (some were 10% to 20% too low).
Since then, I check the tension once in a while because some do loosen a bit over time.
I have not broken any more spokes, so I'm happy about that.
#31
curmudgineer
Joined: Dec 2009
Posts: 4,417
Likes: 113
From: Chicago SW burbs
Bikes: 2 many 2 fit here
although it is possible that the problem is due to inadequate spokes, it is also possible that the rim itself is not round or laterally true (or flat). if so, in order to make it true, the spoke tension is necessarily uneven resulting in premature spoke wear.
a new rim and spokes may be necessary as previously mentioned.
a new rim and spokes may be necessary as previously mentioned.
You can observe this yourself. How many turns of a spoke wrench does it take to make a true and evenly tensioned wheel impossibly untrue? If you were to totally unlace the wheel at that point (evenly detensioning the spokes as you go), would the rim be distorted? I doubt it. Think about it in reverse. Take a bare rim with 1/4" of runout, lace it up and true it. How much unevenness in the spoke tension do you think there would be, assuming even tension except that needed to correct the rim?
#33
Senior Member
Joined: Aug 2008
Posts: 781
Likes: 0
From: Downtown Detroit, Mi.
Bikes: Surly LHT, 94 Cannondale track bike, 80's Cannondale track bike, 60's Raleigh 5 speed, 1888 Eldridge wood wheel track bike and my old 76 DG BMX from when I was a kid.
This is the reason i stay away from disc wheels
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