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Old 10-09-11, 02:29 AM   #1
paramountx
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Spokes keep on breaking

I've done research on the forums other people have it. But basically I'm wondering WHY does it happen. I weigh 300 pounds. The bike Igot was a trek 3700 disc..and I replaced the back tire. I told the LBS to gimme a bette tire because I kept on brak spokes. So he came me



But every two weeks it keep on poppig
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Old 10-09-11, 05:58 AM   #2
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Need stronger wheels. With that weight go 36 spokes
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Old 10-09-11, 09:11 AM   #3
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Yep, the wheels that come on that bike are made to handle minimal abuse. You're gonna need some stronger double wall rims.
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Old 10-09-11, 09:16 AM   #4
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Breaking spokes indicates that as the wheel rotates, the spoke at the bottom is completely losing tension, causing flex that eventually causes fatigue failure.
Solutions:
a) Higher spoke tension. If the spokes are already ~110Kgf, going higher may result in rims cracking around the spoke holes.
b) More spokes.
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Old 10-09-11, 03:23 PM   #5
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You need a better wheel...
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Old 10-09-11, 10:08 PM   #6
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Sorry the rims I got was Mach1 Type XC 210.
That is the one he got me.
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Old 10-09-11, 11:22 PM   #7
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You need a better wheel...
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Old 10-10-11, 10:33 AM   #8
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I'll suggest you lose some weight.
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Old 10-10-11, 11:18 AM   #9
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^Better rims will help you lose weight if it makes you ride more
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Old 10-11-11, 12:06 AM   #10
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I am losing weight. But constantly every 2 weeks my spokes keep on breaking. I lost 30LBS this summer. What should I tell the LBS.
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Old 10-11-11, 12:21 AM   #11
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Get some Atom Labs wheels - no more breaky.
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Old 10-11-11, 10:50 PM   #12
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You ar egoing to have to be more specific^
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Old 10-12-11, 10:20 AM   #13
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I am losing weight. But constantly every 2 weeks my spokes keep on breaking. I lost 30LBS this summer. What should I tell the LBS.
Tell them you bought running shoes and will be back next year.
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Old 10-12-11, 12:13 PM   #14
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gonna have ta chunck some money into a better doublewall rim...
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Old 10-12-11, 12:58 PM   #15
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bicyclewheelwarehouse has some good deals on XT / MTX wheelset right now.
http://www.bicyclewheelwarehouse.com...de/cat_40.html

You could go XT / Rhynolite for about $60 cheaper
http://www.bicyclewheelwarehouse.com...-/prod_53.html


Is it just the rear wheel, or both?
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Old 10-12-11, 08:29 PM   #16
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200 lbs is considered heavy in cycing terms, let alone 300lbs. You may just have to get a tough wheelset built up. If your LBS can't do it try another.

Also - I had a similar problem once, the rear wheels kept breaking spokes, even though I wasn't doing anything rough. Turns out the back derailleur was bent inwards, and would smash into spokes when I was on the lowest gear of my cassette. Make sure it's not that before you sink money into better wheels that you'll just break again.
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Old 10-12-11, 09:01 PM   #17
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You need the toughest, most advanced wheel set available
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Old 10-13-11, 04:50 PM   #18
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200 lbs is considered heavy in cycing terms...
I do not like being called heavy...I'm big boned.
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