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Your cart is empty.Profile Design Conversion has a polished silver finish. Features: For installing threadless stems on a threaded fork Approximately 25mm rise increase possible if used with spacers Polished silver finish Quill Insertion Diameter: 25.4mm for 1 1/8" stems and 22.2 for 1" stems Steerer Clamp OD 25.4mm, for 1", 28.6mm fir 1-1/8
Lucien
Reviewed in Canada on September 7, 2024
Very hard to find a good Size Converter (1" - 1 1/8"). I tried a few one and the dimension was not ok. This one fit perfectly.
letmepicyou
Reviewed in the United States on August 8, 2024
I'm currently in the process of building a trike out of a very old (somewhere between the 50's and 80's, I've yet to find anything on the serial number) Schwinn (at least, I THINK it's a Schwinn, lol) that had some very old tech on it. Such as a threaded headset and the old cup and ball style bottom bracket...lol, yeah, that old.So I already got myself a bottom bracket converter so I can run a normal threaded bottom bracket cartridge (which sure makes maintenance a breeze), but I was on the hunt for a front fork to replace the stock fork, as I was converting it from a 24" skinny tire trike to a 20" FAT TIRE trike (lol) and wasn't sure what I was going to have to get, stem-wise, until I found a fork.Well, I finally found myself a front suspension for a 20" x 4" fat tire (already have all 3 rims, thankfully), and since it had a 1" threadless tube, I knew I needed an adapter for the fork...which leads me to this, lol. This works in my new suspension fork beautifully! I still have to get replacement cups and bearings for the headset, as there's no way I'm re-using the old cups and bearings. I saw quite a few bearing indentations from years of riding a rigid-forked bike and smacking pot holes and curbs and whatnot.In fact, a little PRO TIP for the day is to always run a suspension fork of some kind if your bike allows for it...it not only saves wear and tear on your wrists, elbows, and shoulders, but a front suspension fork, no matter what kind, can prevent impact damage to your headset bearing and cups...the suspension absorbs energy that would otherwise be transferred to the bearings and cups, causing indents and thus irreparable damage to the bearing surface.Anyway, I have to pick up new bearings, so I don't have this installed yet, but when I do, I'll upload a pic with the new fork / wheel / tire installed on the old frame. But as I said, it works great for my application. If you're converting an old threaded trike to a threadless setup like mine, this should work GREAT for you. 5 stars.
ANTONIOS CHRYSOCHOOU
Reviewed in Germany on August 2, 2024
Praktisch aber an meinem Fahrrad musste ich eine Anpassunh vornehmen!
TxRose
Reviewed in the United States on July 11, 2024
Worked great. Wedge fantastic. Nice finish.
Apple Tech Maestro
Reviewed in the United States on December 25, 2024
Likes:Fits my bike project like a glove.solid materialvery durableamazing workmanshipConcerns:NoneKept or Returned?Kept and installed on my Fixie bike and it works like a charm.Thanks for your time and I hope this review was helpful.
flashsteve
Reviewed in the United States on June 19, 2023
I bought an early 90's vintage very high-end steel bike frame. Turns out it is getting pretty difficult to find stems and handlebars in the 'old' specifications, without spending a ton of money. So, this riser allowed me to not only easily set up my bike, but use a modern handlebar & stem. So, very economical solution. Not too much heavier than traditional components, because I could use a much lighter modern handlebar. Not quite as sleek looking as traditional components, but quite acceptable.
Erwin Manaig
Reviewed in the United Arab Emirates on March 24, 2022
It is 1"(25.4mm) -1/8 on the packaging but actual item inside is 22.2 diameter. What I needed is bigger diameter not this one that I received☹️☹️☹️
TJ
Reviewed in the United States on September 4, 2021
I purchased this to update a mid 90's Cannondale M400 mountain bike. The stem fit into the head tube fine, but initially I was completely unable to get things tight -- the bolt just turned, and there was never any real tension. Upon further inspection I noticed that the included bolt is shorter than the one that came stock on the bike, and also that the little wedge piece at the bottom that expands to tighten the stem is smooth (pictured), whereas the one that came stock on my bike has ridges. I figured I would try to use the old bolt and wedge, and that surprisingly solved the problem. I've been on multiple rides and nothing is loose, so far.This could be an error on my part in terms of not ordering the right product, or in not knowing enough about my own bike, but the bottom line is that this didn't work for me out of the box. If I didn't think to mix in the old parts with the new I would have had to return this. I'm not entirely sure what sort of bike this does work for out of the box, but if you have an older Cannondale I wouldn't recommend ordering this unless you have the original parts to swap in.I would have spent more for a product made in the US, but as far as function and value for money it is hard to complain here.
Isaac B
Reviewed in the United States on November 24, 2020
This is a well-priced, good-looking aluminum adapter that lets you mount a 1 1/8" newer style stem on a bike with an older (or cheaper) 1" steering tube. Two things to pay attention to:1. Make sure that you are buying the right size (as many buyers seem surprised.) When your bike has a "1 inch" steering tube, the shaft that fits inside the stem (i.e., 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 steerer is 1" and this adapter will fit. (Your steerer is measured on its outside, but you may not be able to actually see the tube on many bikes.) If the shaft of your old stem is thicker than 7/8"/22.2mm, your steerer is not 1". Also be sure that the thicker top part of the shaft (where you mount the new stem) is correct for your new stem. This adapter takes stems that are 1 1/8"/28.8mm, a common size (though some stems are larger or smaller.)2. Unlike similar adapters, the top cap on this one is wider than the opening in your stem. You can't mount the adapter on the bike, then mount the stem on the adapter. Rather, you'll need to assemble the adapter and your new stem off the bike, then insert the combined unit into the steering tube. The payoff for your efforts is a cap that covers the joint between the stem and the adapter. That will likely keep water from seeping into your assembly and also looks more elegant.
EGG
Reviewed in Mexico on October 16, 2020
Quedó perfecta era lo que esperaba la recomiendo ampliamente por su tamaño, su tuerca y cuerpo es de aluminio y lo es nada Delgado está muy bien construido y el tapón con el grabado lo hace ver más profesional, creo que fue una buena inversion, ya que traia puesto un poste convertidor y era muy Delgado no daba la confianza de andar en campo, ya con este tengo la confianza que no se romperá.
Brian
Reviewed in the United Kingdom on April 29, 2015
VERY GOOD AND WOULD HAVE USED IT BUT FOUND ONE IN MY GARAGE AMONG MY "BITS" SO HAVE RETURNED IT IN EXCHANGE FOR MUCOFF 5LTR. HANKS FOR YOUR HELP
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