Wheels Manufacturing25.4-31.8 Handlebar Shim, 1 Pair

This is my second set of shims, the first ones were too thin, I have another set on the way that are still taking forever so I ordered these and received them very quickly. They are high quality with tapered tops and the size marked on them in while lettering. Says high quality and attention to detail to me. So these worked very well. Bars are as stiff as a drum!

I purchased a new stem for my commuting bike as I found my old one was just a bit too short for comfort. I didn't realize that the clamp size was too large though, so I searched around for a quick fix, and came across these. They're a simple concept, and they're incredibly easy to install. I've put around 200 miles on my bike since I got these and they have held the bars on very tightly, no issues with rotating or slipping.

Fits ok for using an aftermarket straight bar in place of drop handlebars on a Specialized cyclocross bike. Most of my riding is off road and the result is way lighter and more maneuvable than a 29-inch mountain bike.It's a little tricky for 1 person to keep the parts aligned during install. I was concerned dirt could get in the gap. But I have the shims lined up so that the gap between the shims is basically the same as the gap as the between the stem and stem clamp.It would be better if the parts had some markings at the ends to help center them. My straight bar like many other handlebars has a geometric pattern, which I once thought was only for appearance but its real purpose is to help center the bar during installation. So the bar is centered to the Wheels Manufacturing shims now, but the spacers have no marks. Installing it by eyeball only, it looks the whole thing is probably 2-3 mm off center. I might have to tweak it again if the difference turns out to have any noticeable effect on steering in different riding situations. Preferably I'll have a helper if and when I do the tweak. There is also some compound that comes in a tube, not glue exactly but for holding stuff in place, that would work - didn't want to put any more money into it though, would sooner spend the money on tools.

I PURCHASED A SHORTER STIM FOR MY MTB BECAUSE I WAS REACHING TOO FAR WHICH WAS CAUSING SHOULDER AND BACK /NECK PAIN. I MADE A MISTAKE AND WHEN I INSTALLED MY NEW SHORTER STIM MY HANDLEBAR WAS TOO SMALL. I THOUGHT I WAS GOING TO HAVE TO PURCHASE A NEW HANDLEBAR BUT THESE SHIMS SAVED THE DAY. THEY WORK GREAT!!!

Worked perfectly to fit my Trek System 4 handlebar to a new Ritchie neck. Easy to align. Very solid. The initial package was lost and never received, but Amazon came through and reordered at no cost for me with expedited shipping.

Decent item, but dishonest marketing.The front of the package these come in states ">>wheelsmfg.com MADE IN THE USA (in huge caps) the name of the brand trusted by mechanics for over 20 years, the highest quality"...when one flips the bag over they will find a barcode, with made in taiwan in small print....really? This item officially qualifies to run for office!...with all that said they do the job well, unlike many of those in the former comment.

This product is the perfect item to convert the handlebar set from a mountain bike to a beach cruiser.The Bontrager handlebar set a different thickness at the point where it clamps onto the stem riser.The stem riser accommodates a handlebar 31.8 mm thickness.The handlebars I bought to make the bike into a beach cruiser is 24.6 mm in thickness at the point where it fits into the stem riser.To fit the beach cruiser handlebar onto the Bontrager stem riser I needed a shim set to fill the void and these shims fit that need perfectly.... I was very happy to find these shims on Amazon. Otherwise, I would have had to replace the stem riser myself or find a bike shop to do it for me. Using a bike shop would have run into problems trying to match different specifications to accomodate my beach cruiser handle bar set... these shims saved me TONS of headache and MONEY...

Haven't had any issues so far, though this is for use on a bike that's just cruising around the neighborhood. It doesn't go offroad.