31.8 x 85 mm Alloy 40-140 Degree Adjustable 1.1/8" Ahead Bike Stem, Black

I purchased this to replace the original stem on my Cannondale Quick 1, to get a more upright riding position. As others have stated, this stem is very very well made and I particularly liked the fact that the adjustment sat on the top of the tube instead of out front. The adjustment actually has teeth that mesh together when tightened, which make this much better than a friction based system. The way this feels when tightened, I cannot imagine this ever slipping. Now a cautionary word or two about installing this on a carbon fork steerer tube. This comes with a star compression nut assembly which is installed into the fork tube to tighten the main stem body to the tube. This is fine for alloy or steel fork tubes, but should not be used for carbon fork tubes. On carbon steerer fork tubes, an expansion / compression nut should be used. Since my fork is carbon, the original stem assembly on my bike did have an expansion nut, but I discovered this was too short to be used with this adjustable stem. I had to purchase a 50mm long expansion nut assembly separately to install this new stem on my bike. Below is the link to the one I found on Amazon, which cost around $10. I used this one without the black top cap and it worked perfectly. I feel the company selling this excellent product would benefit by having two styles available. One sold with the star compression nut for alloy and steel fork tubes and another sold with a compression nut for carbon fork tubes. It also would be nice if they included a picture of the internal parts in the listing. Other than this, I highly recommend this stem and would definitely buy it again should I need another one.https://www.amazon.com/gp/product/B077JMWY8X/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1

I felt I had to lean too far forward on my new Trek 820 and wanted to sit more upright. I debated between this and replacing the handlebar with more rise and/or the stem. Looking at the photos and reading the reviews, this adjustable stem seemed to be sturdy and functional. If this alone didn't give me the height I was looking for I was going to replace the handle bar next. Luckily, two clicks forward from the vertical position gave me the perfect seating comfort. All the parts are of good quality, and I expect it to be trouble free for many years.I added some thread locker to some of the bolts just as a caution. I kept 3 spacers below this stem, and the steer tube doesn't quite clear the top clamp as much as I would like. Once installed, everything felt rock solid with no looseness or noises. Recommended.

On of the best threadless adjustable stems. Most have the adjustment offset from the steerer tube which even fully adjusted can keep the bar low for comfort purposes. This moves the pivot to above the steerer tube much like a threaded version does, this means you get the full benefit of the pivot. There is also plenty of space above the pinch bolts to allow for plenty of height adjustment as well, just remember that the top of the steerer tube needs to sit level with the top of the upper pinch bolt. In the case of the install in the picture I included I did this which also moved the handlebars up, another 2 spacers could have been removed if I wanted the bar lower without moving it forward via the pivot. No top cap needed and the adjustment is just one 6mm wrench. Simple, easy and well thought out.

I love the concept of adjustable stems for one simple reason; everyone is built differently and has a different preferred riding position. There is almost nothing more uncomfortable than riding a bike that can't accommodate your particular riding position.This is a replacement stem for the original adjustable stem I had purchased for this bike a year ago. I could never get the original stem to tighten down. It got to point of being annoying and then, dangerous.This new stem is the real thing. It's beautifully made, solid and easily locks down and holds its position. It has a wide range of adjustments to accommodate almost anyone's preferred riding position. I'd give it six stars but they only allow me five.

Don’t usually write reviews.....being an engineer I am really impressed with the design, construction and quality of this stem. They got the angles and dimensions just right and you can easily go from full comfort to aggressive riding. I should have purchased it years ago. The only negative is the weight but I can overlook that because of the solid not hollow construction. Don’t think you will be disappointed.

like the product makes a big difference with the 90 degree ability - caution i twisted 1 bottom bolt off when torquing down to my bike specs so ill hand tighten the next one which i just ordered. so if you dont need the 90 capability buy a truvativ or some other one of quality

Easy to install. Adjustable hights is great have ,really does help the comfort of steering and riding the bike ease for me.

Seems to be well-made. There are "clicks" for each angle/degree of setting.The only drawback for me is that the handlebar clamp is 31.8mm, not the more common 25.4 or 25.6mm. So I need a fatter handlebar now.

a really good option for my hybrid bike and good quality too

No se ajusta a la imagen o faltan componentes , puesto que en la imagen aparece un tapon en el agujero central dónde se enrosca el tornillo con la araña. Y por lo menos en mi unidad no es así por lo que al ser bastante profundo se meterá agua y se vendrá a oxidar el tornillo. Lo raro es que la imagen aparece que trae una tapa pero a mí no me ha venido. Decepcionado porque barata no es puesto que hay otras qué valen la mitad ya está le faltan componentes a mi juicio bastante importantes se podían haber ahorrado la araña que trae por dentro y haber puesto el tapón. Un saludo

This unit seems well constructed and was easy to install on my bike. Raising the handlebars and bringing them back slightly provided a more upright peddling position and helped to relieve much of the back and neck discomfort I was feeling. I am able to enjoy riding longer and farther now.

Nach mehreren Versuchen, den richtigen Vorbau für mein Bike zu finden, bin ich nun mit diesem Teil echt zufrieden. Die zu geringe Höhe des Lenkers konnte ich wunschgemäß korrigieren und durch die Winkelverstellung ergeben sich weitere Optionen. Da ich altersgemäß nicht mehr ganz so sportlich unterwegs sein möchte, war dieser Kauf eine sehr gute Entscheidung.

Sehr gute Qualität, bin sehr zufrieden... Preis-Leistung top...