Header banner
Revain logoHome Page
fomtor 31.8 bike stem with 35 degree rise and length options of 70mm, 90mm, and 110mm - ideal for 1.25" handlebar mountain bikes, road bikes, mtbs, and bmxs logo

FOMTOR 31.8 Bike Stem With 35 Degree Rise And Length Options Of 70Mm, 90Mm, And 110Mm - Ideal For 1.25" Handlebar Mountain Bikes, Road Bikes, MTBs, And BMXs Review

18

·

Very good

·

$$
Revainrating 5 out of 5  
Rating 
5.0
🚴‍♀️ Cycling, 🥋 Sports & Fitness

View on AmazonView on ЯM

Media

(4)
img 1 attached to FOMTOR 31.8 Bike Stem With 35 Degree Rise And Length Options Of 70Mm, 90Mm, And 110Mm - Ideal For 1.25" Handlebar Mountain Bikes, Road Bikes, MTBs, And BMXs
img 2 attached to FOMTOR 31.8 Bike Stem With 35 Degree Rise And Length Options Of 70Mm, 90Mm, And 110Mm - Ideal For 1.25" Handlebar Mountain Bikes, Road Bikes, MTBs, And BMXs
img 3 attached to FOMTOR 31.8 Bike Stem With 35 Degree Rise And Length Options Of 70Mm, 90Mm, And 110Mm - Ideal For 1.25" Handlebar Mountain Bikes, Road Bikes, MTBs, And BMXs
img 4 attached to FOMTOR 31.8 Bike Stem With 35 Degree Rise And Length Options Of 70Mm, 90Mm, And 110Mm - Ideal For 1.25" Handlebar Mountain Bikes, Road Bikes, MTBs, And BMXs

Photos by authors

(8)
img 5 attached to FOMTOR 31.8 Bike Stem With 35 Degree Rise And Length Options Of 70Mm, 90Mm, And 110Mm - Ideal For 1.25" Handlebar Mountain Bikes, Road Bikes, MTBs, And BMXs
img 6 attached to FOMTOR 31.8 Bike Stem With 35 Degree Rise And Length Options Of 70Mm, 90Mm, And 110Mm - Ideal For 1.25" Handlebar Mountain Bikes, Road Bikes, MTBs, And BMXs
img 7 attached to FOMTOR 31.8 Bike Stem With 35 Degree Rise And Length Options Of 70Mm, 90Mm, And 110Mm - Ideal For 1.25" Handlebar Mountain Bikes, Road Bikes, MTBs, And BMXs
img 8 attached to FOMTOR 31.8 Bike Stem With 35 Degree Rise And Length Options Of 70Mm, 90Mm, And 110Mm - Ideal For 1.25" Handlebar Mountain Bikes, Road Bikes, MTBs, And BMXs

Reviews

Global ratings 18
  • 5
    17
  • 4
    1
  • 3
    0
  • 2
    0
  • 1
    0

Type of review

Revainrating 5 out of 5

Makes a huge difference!

Got this for the new hybrid bike that we got for my wife. With the pandemic could not do a bike fitting. The bike was great but the original stem was too long without any substantial rise. We were thinking about returning the bike. Installing this made a huge difference. Took about 10mins to install and make the necessary adjustments. Feels like a completely new bike.

Pros
  • Looks good and light weight. Great value.
Cons
  • The bolt seat is too shallow, leading to unpredictable consequences

Revainrating 5 out of 5

Comfort and Quality at a great price

Put this on my Trek X-caliber 9 mountain bike, been riding a lot on dirt roads and rail pathways this spring so i have been riding in the saddle most of the time (not really what the bike is designed for), as a result my neck and lower back have been aching after the ride, so i figured i would give this inexpensive stem a try. The stem looks very well made and finished perfectly, no complaints here. Swapped out the stock bontrager stem (80mm long / 7 deg) and after 2 rides i am feeling much…

Pros
  • great product
Cons
  • Off-center bolt seats lead to a weakened grip

Revainrating 5 out of 5

Huge improvement in my review

I just bought my first drop handlebar bike since I was a teenager. I'm 50 now. All-road gravel bike. I had to order it sight unseen due as no one has much of anything in stock right now. When I first got on the bike I was certain I had made a huge mistake. It was extremely uncomfortable being that far forward. I had way too much weight on my shoulders and hands. Original stem was 90mm. Just adding this 70mm stem with a 35 deg rise made a very noticeable change. I am much more comfortable on the

Pros
  • Good quality, prefect for on my bike.
Cons
  • Not durable enough to withstand rugged terrains

Revainrating 5 out of 5

Wanted my handlebar higher and closer. This did just that.

This stem was easy to install and did exactly what I needed. Don't forget to apply your front brakes and rock the front of the bike to check that your bearing are tight between the down tube and the fork. If not loosed the stem then crank down on the top bolt to snug it up a tad. Then tighten your stem bolts to the proper torque with a torque wrench.

Pros
  • Used it raise my riding position on mtn bikeWorked perfectly
Cons
  • The stem rattles during steep climbs or descents

Revainrating 5 out of 5

Works great - my new review

I wanted my handlebars a little bit higher on my mountain bike to take a little bit of pressure off my lower back, shoulders, and wrists and this did just that. Exactly what I needed.

Pros
  • Raised and shortened the reach my Giant ebike handlebars. No more lower back and neck pain!
Cons
  • The stem's appearance looks bulky and unattractive

Revainrating 5 out of 5

High quality material

It took about 5 min to replace my straight 90mm stem. Now, the handle bar is slight higher and about the same reach which makes a big difference in ride comfort.

Pros
  • Handlebars, Headsets & Stems
Cons
  • Weaknesses in the bolt mechanism leads to breaking down repeatedly

Revainrating 5 out of 5

Perfect for riser. Geometry calculations here.

Lightweight and perfect. Keep in mind when you get a 70mm stem with a riser, the functional length is not 70 degrees but less. You have to use a geometry calculator to figure it out (or do a rough estimate). Think of it like a right triangle, the center of the bars/tube are points, and the 70mm is the hypotenuse. With the rise angle being 35 degrees, the actual rise therefore is 40mm and the functional stem length (added reach) is 57mm.

Pros
  • Excelente potencia
Cons
  • The product description is misleading

Revainrating 5 out of 5

Good quality - my new review

Got the shorter stem which helped so much with back and wrist pain on longer trips. All the screws were greased up and the build looks just as good as my original $60 stem.

Pros
  • great to change bar height on a small woman's road bike
Cons
  • The rise degree is uncomfortable for most riders

Revainrating 5 out of 5

Best value and quality

I was about to order a more expensive (almost 3x cost) stem and saw this and took a chance and ordered it. It came the next day, and was great quality, easy installation and works great. The only thing i would ask the seller to do would be to include black color stem screws for a better match but that is meant to be feedback that did not change the functionality, quality or install of this item.Highly recommended!

Pros
  • Great stem for the price.
Cons
  • The stem does not support maximum load capacity

Revainrating 5 out of 5

Awesome and holding up

I ride a XC bike pretty aggressively and I am a heavy guy so I was hesitant to buy this. I had visions of this snapping and me going over the bars. Been on a few rides and taken some good drops, rock gardens at high speed, and some serious rollers. Its held up great. It put the bars right where I wanted them a little farther back and higher up. Very happy with this.

Pros
  • Sports
Cons
  • The bolt threads are prone to stripping

Revainrating 5 out of 5

Big Improvement! for my opinion

This replacement stem added about 2" of handlebar height as compared with the original stem supplied with my TREK. This made a fantastic difference in improved comfort on longer rides, with minimal change in pedaling efficiency. The new stem was easy to install, and required no changes in attachment hardware on my bike's threadless headset. I recommend it highly!

Pros
  • ‎31.8 x 110 mm
Cons
  • There are better alternatives available for the same price point

Revainrating 5 out of 5

Very Happy with my purchase

I don't really have much to say that hasn't already been said. It's a stem and it fits. I like the finish and styling and it does what I need. I just wanted to add my feedback to help give people the confidence to buy it if they think it will help them.

Pros
  • Nicer than expected for the price.
Cons
  • The rise degree is not noticeable from the product photos

Revainrating 5 out of 5

Much better upright position

Seems to be quality metal. Very light! It was way shorter than the original one so with this one on I sit much more upright. Puts a lot less weight on my palms which is exactly what I was looking for. I also put wider bars on my cheap motobecane at the same time and it's made the bike feel wayy more stable. Thrilled with the purchases

Pros
  • As advertised at a good price
Cons
  • Inaccurate length measurements on product description

Revainrating 5 out of 5

Nice construction and well built

I've used the FOMTOR 35 Degree stem now for quite a few rides and it works well. Only complaint is that one of the bolts is already showing rust. Well built!

Pros
  • Angle: 35 degree. Help to up or down the heigth of handlebar.
Cons
  • Wrong angle for slack geometry

Revainrating 5 out of 5

Pain in the neck to gone.

I enjoy riding my mountain bike on the green belt path but I was having neck issues. I replaced the 90 degree stem with this 45 degree stem with awesome results. The resulting repositioning of my neck has made a huge difference in my neck soreness. I recommend this 45 degree stem. The installation took me about 15 minutes.

Pros
  • Exactly what I needed
Cons
  • The clamp does not match the product description

Revainrating 5 out of 5

Good Quality Easy Install

Excellent quality and fit, especially considering the low price.Fits the Sur-Ron X Killah fork with no modifications.

Pros
  • For as inexpensive as it is, its a great fix for a short fork tube!
Cons
  • Weak fitting mechanism leads to frequent loosening of the stem

Revainrating 4 out of 5

Real nice stem! on my review.

Took weight off my wrist, because I didn't have to reach forward as far. Only tighten screws 5-6 newton meters torque (50 inch pounds) Use a torque wrench!

Pros
  • Worked as described. Bought this to try different geometry before purchasing more expensive parts.
Cons
  • The weight distribution is uneven, contributing to wobbling bikes

Revainrating 5 out of 5

Well-built, easy to install

Simple and easy to install. Good quality metal. I anticipate this lasting a while. Only drawback is that it's on the heavy side compared to the Bontrager stem I replaced. Pay attention to the weight if that matters to you.

Pros
  • This was a great addition to my "dumpster find" build.
Cons
  • The company does not provide proof of durability