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Wheel Question(6 posts)

Wheel QuestionSoftrider
Aug 11, 2003 4:54 AM
We have a guy in our group who has started cycling in the last year. He is a big guy at about 280lbs. He is riding a set of Open Pro's 32h front, 36h rear built with 14/15 gauge DT spokes 3 cross.

He is continually breaking non drive side spokes on the rear wheel. All of the spokes are breaking at the hub elbow. The wheel has been rebuilt by a good wheelbuilder, but the problem continues.

I would appreciate any suggestions on how we either change this wheel build to make it stronger, or another wheel that would hold up better.

Thanks
More spokes Scotty !!!!!!!!!MR_GRUMPY
Aug 11, 2003 5:33 AM
36 might be too little. 40 hole, large flange, 4X wheels, with Alpine 13/14 spokes, should hold up.
Go x4 on the rear ... very strongMrDan
Aug 11, 2003 5:40 AM
Go x4 on the rear lacing or go straight 14 GA spokes or better yet, both. Don't worry about wheel weight here... make sure spoke tension is even on each side of hub. (The tensions can/should be a bit different on drive/non-drive sides)

-D
Or... tension may be too high/low on non-drive side...MrDan
Aug 11, 2003 5:52 AM
Does he hear any "pinging" as he's riding? Then he's got some under-tensioned spokes and just a couple like that (non-uniform) can really add up to high stresses and cyclic loading much greater than a properly tensioned wheel...

-D
More TensionChen2
Aug 11, 2003 6:39 AM
This sounds like a typical low tension (loose spoke) problem. Nothing wrong with 3X or 14/15 spokes.
~Al
re: Wheel QuestionFastFred
Aug 11, 2003 5:44 PM
280 lbs?!?! Jesus, tell him to ride on a trainer till he loses some weight...