🔧 Profile Design Threadless Size Converter: 1" to 1 1/8" - Simplify Your Stem Compatibility Review

The bike stem is weird. Most 1" stems are actually 7/8 by 22.2 OD. The 1 1/8 tip diameter is actually 25.4. I ordered this one because some other reviews had pictures of 25.4 stems which came from this item. I bought it to use on an old bike that needed a 1" stem. The packaging says 1 to 1 1/8" but the stem is OD 22, Marked 2. I was very hopeful as some of the other reviewers had posted photos of the 25.4mm OD The stem I received was only 22.2 and can be used as a replacement for a 1" gooseneck

This part fits a 7/8" (22.2mm) ID tube to convert an 'old' stem to a modern one. Your configurations and options to change your bike to better suit you or just use modern components as there are LOTS more options now. MAKE SURE your bike has a 7/8" tube. This is the most common size, but if you want to avoid lag, measure it. I converted two of my "old" bikes with these stem converters, using them I can fit recline adjustable stems, there are so many options on the market now, the prices are…

I bought this to upgrade a mid 90's Cannondale M400 mountain bike. The rod fit perfectly into the steering column, but at first I couldn't tighten it at all - the bolt just turned and there was never any real tension. Upon closer inspection, I noticed that the supplied bolt is shorter than the one that comes standard on the bike and also that the small wedge on the underside that expands to tighten the stem is smooth (pictured) whereas the one that comes stock was, my bundled bike has crests. I

This is a cheap good looking aluminum adapter that will allow you to fit a new 1 1/8" stem to a bike with an old (or cheaper) 1" headset. Two things to look out for: 1. Make sure you're buying the right size (as many shoppers seem surprised). If your bike has a "1" headset, the stem that fits the stem (ie your old stem or this new adapter) will be thinner. , about 7/8"/22.2mm. If your old stem is 7/8"/22.2mm thick, your stem is 1" thick and this adapter will fit. (Your stem is measured from the