I'm looking to change out the stem on my cross bike but the spare stem I've got is a 31.8, not 26.0 like the handlebar currently mounted. Is there a safe way of shimming these two together? I've found this online http://www.bikeparts.com/search_resu...p?ID=BPC304050
Has anyone used these problemSolvers shims before? Do they work? I know the 'proper' way is to upgrade to the right size components but that stem is just the right size.
That's a lot to shim. It would probably work, but you may as well just buy a 26.0 stem - they're cheap. You could probably sell the 31.8 stem on eBay for nearly as much as it would cost you to have a new 26.0 stem, no shim, and total peace of mind.
Well I took your cautionary advice and decided to take the stem to my lbs and consign it but get this, there was an even better quality stem in the same size (and non-oversized clamp) that just got reduced in price - score!!