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Stem compatibility question.(4 posts)

Stem compatibility question.Juanmoretime
Aug 15, 2002 5:20 AM
I have a 26.0 handlebar and am looking for a different rise stem, an LBS suggested a 0 degree rise Zepp, which is 25.8. I pointed out the diffence in size and he said the handlebar was only slightly larger and that it would fit. Has anybody any experience with this?

Thank you,

Juan
Yeah.Spoke Wrench
Aug 15, 2002 5:34 AM
We had a discussion about that a couple of weeks ago. For whatever it's worth, Quality Bike Products lists the Zepp, among a number of other stems, as 26.0 clamp.

I think that installing a high end stem, like a Zepp, is a good place to use a torque wrench. A less than preofessional job can result in either handlebar slipping or stripped bolts. Both are bad.
I think, if you're talking...Stinky Hippie
Aug 15, 2002 5:48 AM
...about your average aluminum bar, this probably won't matter. However, a carbon bar presents alot of potential safety issues if it is poorly mated with a stem. I have 25.8mm Ritchey and a 26mm EC90 carbon bar. The stem gouged my bar and I'm rather concerned.

If you're running one of those superlight aluminum bars like Prima 199, I would be VERY careful. If you do have gouging from an improperly mated stem/bar setup it will be on the top and bottom of the bar where the face plate meets the stem. There is no worse place to have scratches and gouges than on the top and bottom of your handlebar. Even the slightest scratch in those areas -- particularly the top -- can lead to handlebar failure.
same combo, no problemC-40
Aug 15, 2002 8:31 AM
I had no problem with the Ritchey WCS stem and EC-90 bars.

The simple solution to pinching the bars at the parting line between the stem and faceplate is to file a small chamfer along the offending edges.

I carefully measured my "26.0mm" EC-90 bars and found they were only 25.8 to 25.9mm diameter, and out of round by .1mm.