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Theadless stem.2 or 4 bolt handle bar clamp? is one better?(4 posts)

Theadless stem.2 or 4 bolt handle bar clamp? is one better?James
Mar 22, 2002 9:48 PM
I'm looking at the Ritchey WCS and noticed that it has 4 bolts on the handlebar clamp. What are the added benefits over the 2 bolts, I.E. less creeking, stiffer, ect ect.?
should be obvious...C-40
Mar 23, 2002 6:31 AM
4 bolts will provide more uniform clamping pressure and require less torque on each bolt to exert the same clamping pressure. On the down side, it's not as pretty.

I've had some trouble getting the bars to stay put with my 2-bolt ITM Millennium. The bolts have to be torqued to the limit to keep the bars in place. I'll probably opt for a 4-bolt model whenever I really need a new stem.
Things are not always obvious...KurtVF
Mar 24, 2002 11:43 AM
Someone asked a while back if 31.6 was more rigid than 26 whatever mm. Most felt there was actually not much if any difference.
Good place to use a torque wrench.Spoke Wrench
Mar 24, 2002 6:05 AM
I think that the trick is to get the bolts torqued evenly. It's possible with many of the lightweight stems to strip out the threads from using excessive torque. The right way is to grease all of the mateing surfaces and "walk" the bolts down a few inch/pounds at a time.

I was surprised when I got my Thompson stem that the torque spec for all of the bolts is 48 inch/pounds. For those of you who are torque wrench challenged, that's next to nothing. Left to myself, I definitely would have overcooked it.