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Old 06-23-09, 07:29 PM
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Two Spoke / wheel / hub Questions

I have a couple questions having to do with spokes/wheels.

The first is are hubs made for a very specific spoke diameter or a range of diametes. For example is a hub meant for only 1.8mm spokes and can't use 2.0mm or are these both close enough that they can be used in the same hub. My hub is an ultegra 6500 (9 speed) and I would like to know what size diameters are alright for it.

The second question which is kind of related to the first is whether or not it is alright to replace a spoke of a different diameter as a temporary fix when a spoke breaks. I know these probably bend a bit different when you hit a bump and its not ideal, but I'm just worried about any big problems.

This came up because I recently broke a spoke, but use my bike as my main form of transportation. It has 1.8mm straight gauge spokes, but the only spares I have are 2.0mm straight gauge. I bought the wheelset used and it turns out some of the spokes have already been replaced with 2.0mm straight gauge which concerns me a little, but I've had the wheels a while and they've been good except this one spoke. I plan to either rebuild the wheel soon or go through and make sure all the spoke are the same, but I'm just hoping this isn't and immediate problem and I can use the bike in the mean time.
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