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XTR LIGHTER than Dura Ace(4 posts)

XTR LIGHTER than Dura AceTrek Racer X
Jun 18, 2002 4:42 PM
The XTR hubs set is lighter than the Dura ace hubset. Am I missing something, or aren't mountain components supposed to be heavier than road components? Why don't Pro's run XTR hubs, on their Mavic Open Pro's instead?

Just some food for thought.
re: XTR LIGHTER than Dura AceLeisure
Jun 19, 2002 12:07 AM
Rear mountain hubs wider than road. And personally, I think Shimano hubs as rated are heavy no matter what, and their weight estimates are probably a bit flattering, too. Probably more so in mountainbiking because of the market size and amount of competition. Good that you notice, though.
dura ace more aero?off roadie
Jun 19, 2002 8:18 AM
That could be one reason road pros run it over lighter XTR stuff- XTR has a thicker centrer hub shaft and less "smoothing". I think XTR's weight is more driven by marketing than competitive requirments. Its "top of the line" with top of the line pricing, so it has to be "the lightest" or people will simply go with some other brand. MTB riders interested in abuse tolerant hubs often go with XT hubs instead, which are usually half as expensive as XTR and are certainly are heavier than road hubs.

I don't see any reason why mountain hubs for XC use need to be any heavier than road hubs. The stresses a road hub sees in a fast sprint or hard turn are pretty high, I'd guess. Skinny, high pressure tires and rough roads are probably harder on a hub than fat tires, front suspension, and lumpy dirt tracks. The main requirment MTB hubs have that road hubs may not is dirt / water sealing. With modern hubs, the elements are a bigger challenge to durability than the stress of riding off road.
re: XTR LIGHTER than Dura AceBeaver
Jun 19, 2002 8:29 AM
Actually, a few years ago some top MTB pros were running Dura Ace hubs for XC races for the lighter weight. Don't know if they still do or not.