How important is it for wheels to be "true"?

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General Discussion Triathlon Talk » How important is it for wheels to be "true"? Rss Feed  
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2009-07-30 9:21 PM

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Fort Rucker, Alabama
Subject: How important is it for wheels to be "true"?
I was looking at a set of HED 3's that look to be a good price, but the seller mentioned that the rear is "a couple MM's out of true". What would that affect when the wheels are being used? Thanks.

Nate 

2009-07-31 1:45 AM
in reply to: #2318596

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, New Hampshire
Subject: RE: How important is it for wheels to be "true"?
True means that the wheel is not out of alignment from being perfect side to side, ie. the wheel doe not wobble (move from side to side as you spin the wheel), or that the wheel is perfectly round (no movement up and down as you spin the wheel). So, yes it is important. A couple of MM off is not that bad for a HED3, but you may need to open up your brakes ever so slightly so you're not rubbing. If it's 2mm (which a couple should mean), then I would say you're ok, if it's more than that, you may experience wobble, especially at higher speeds, which is quite scary.
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