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Bike / Cockpit / Stems
Thomson Elite X4 Stem Black
Thomson Elite X4 Stem 100mm - 10 Degree Silver
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Thomson Elite X4 Stem Black
Thomson Elite X4 Stem 100mm - 10 Degree Silver

Thomson
Elite X4 Stem

Mfg PartNum:
$121.95
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Thomson Elite X4 stem can be used on either road or mountain bikes. Lighter than its predecessor by 30 grams, the X4 stem is also strong. One of the strongest stems in the industry, Thomson stems are used by freeride and downhill riders with confidence. A traditional steerer clamp that is shaped to save you weight also means that it's knee friendly. Precise steering, tracking and more control while riding all wrapped up in a beautiful design. 0° or 10° rise. Fits 31.8 bars only. 171g (110mm).

B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.

 

Stem Clamp Diameter: 31.8 mm

Weight: 160 grams

Stem Angle: 0 degree

Stem Length: 60 mm

Mfg PartNum: SM-E164 

Stem Angle: 0 degree

Stem Length: 100 mm

70mm 0 degree Black

Weight: 141 grams

Mfg PartNum: SM-E131 BK 

Stem Angle: 0 degree

Stem Length: 70 mm

80mm 0 degree Black

Weight: 149 grams

Mfg PartNum: SM-E157-BK  

Stem Angle: 0 degree

Stem Length: 80 mm

90mm 0 degree Black

Weight: 154 grams

Mfg PartNum: SM-E132 BK 

Stem Angle: 0 degree

Stem Length: 90 mm

100mm 0 degree Black

Weight: 160 grams

Mfg PartNum: SM-E133 BK 

Stem Angle: 0 degree

Stem Length: 100 mm

110mm 0 degree Black

Weight: 165 grams

Mfg PartNum: SM-E134 BK 

Stem Angle: 0 degree

Stem Length: 110 mm

120mm 0 degree Black

Weight: 172 grams

Mfg PartNum: SM-E135 BK 

Stem Angle: 0 degree

Stem Length: 120 mm

70mm 10 degree Black

Weight: 141 grams

Mfg PartNum: SM-E169-BK 

Stem Angle: 10 degree

Stem Length: 70 mm

80mm 10 degree Black

Weight: 149 grams

Mfg PartNum: SM-E163-BK 

Stem Angle: 10 degree

Stem Length: 80 mm

90mm 10 degree Black

Weight: 154 grams

Mfg PartNum: SM-E138 BK 

Stem Angle: 10 degree

Stem Length: 90 mm

100mm 10 degree Black

Weight: 160 grams

Mfg PartNum: SM-E139 BK 

Stem Angle: 10 degree

Stem Length: 100 mm

110mm 10 degree Black

Weight: 165 grams

Mfg PartNum: SM-E140 BK 

Stem Angle: 10 degree

Stem Length: 110 mm

120mm 10 degree Black

Weight: 172 grams

Mfg PartNum: SM-E141 BK 

Stem Angle: 10 degree

Stem Length: 120 mm

70mm - 10 Degree Silver

Weight: 141 grams

Mfg PartNum: SM-E169  

Stem Angle: 10 degree

Stem Length: 70 mm

80mm - 10 Degree Silver

Weight: 149 grams

Mfg PartNum: SM-E163 

Stem Angle: 10 degree

Stem Length: 80 mm

90mm - 10 Degree Silver

Weight: 154 grams

Mfg PartNum: SM-E138 

Stem Angle: 10 degree

Stem Length: 90 mm

100mm - 10 Degree Silver

Weight: 160 grams

Mfg PartNum: SM-E139 

Stem Angle: 10 degree

Stem Length: 100 mm

Ordered by Most Relevant First
5 stars
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3 stars
2 stars
1 stars
(15)
(1)
(1)
(0)
(0)
(88%)
(6%)
(6%)
(0%)
(0%)
Great stem
by Anonymous

Does what a stem should do. Great quality.

Reviewed 1/23/2023
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Best stem you can find
by Jason
Corbett, Oregon
1 of 1 customers found this review helpful.

I’ll be honest I’ve had a Thomson stem on each of my bikes for the past 10 years. These are by far the best stems on the market. Made is the USA as well. I have their seatposts and carbon handlebars on each of our bikes as well. Best looking cockpits in the northwest.

Reviewed 10/21/2021
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Looks cool and works like it should
by Curt Johnson
Daily Commuter
Morgan Hill, CA
1 of 2 customers found this review helpful.

Well what could go wrong with a stem? Not much. I've been using Thomson stems on my road bikes. Yeah I know its a mountain bike stem, but it looks cool. Anyway, it does exactly what bought it for. I screwed up o this on and bought one too short. I was building a bike and had a few old stems laying around, so I put a 120 FSA stem on this new ride. The other stems had some steep angles and the 120 turned out to be too long. I ordered the Thomson in a 90. That turned out to be too short. I can't win, but its not the stem's fault.

Reviewed 9/30/2020
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It's a big boy.
by truckincyclist
Cycling Enthusiast
Jersey
1 of 8 customers found this review helpful.

Thomson's reputation preceded itself here. I thought it would be crazy outstanding machining and industrial bling, but I was a bit disappointed to find the face plate doesn't line up perfectly with the stem body - a little off, but off - and it's a very chonky unit. I didn't weigh it, but it assumes quite a prominent presence on the front of the bike. I prefer a slim and light-looking front end. It's a decent piece and a sure upgrade from a regular $30 stem, but their rep is hollow. Live and learn.

Reviewed 9/21/2020
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On every bike I own.
by Paul
Cycling Enthusiast
NYC
2 of 2 customers found this review helpful.

There are a couple of things you can buy for your bike and never worry about again.

A Chris King headset and a Thomson stem. As light as a carbon stem and 200X more durable.

Reviewed 4/13/2022
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High Quality
by Cawgijoe
Centreville, Virginia
1 of 1 customers found this review helpful.

This Thomson stem was installed on a 2009 Cannondale Bad Boy. Easy to install and looks great. Highly recommended.

Reviewed 8/7/2020
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Malibu
by Anonymous
2 of 3 customers found this review helpful.

Awesome well made

Reviewed 2/3/2018
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Nice stem, good value
by Rick
Cycling Enthusiast
Michigan
1 of 1 customers found this review helpful.

I was looking for a stem with a bit more rise in it. The Thomson stem fit my criteria and I've always ridden there seat posts and loved them for their quality and durability. The quality and finish of the stem are the same as that of the seat post's, second to none. The stem is also quite stiff and seems to be bombproof. I'm very happy with the purchase and consider Thomson product to be a good value for the money.

Reviewed 11/6/2017
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A quality stem
by Anonymous
Iowa
1 of 1 customers found this review helpful.

A great looking stem that is built to last.

Reviewed 9/3/2018
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Power saver.
by Anonymous
Competitive Racer
portland, oregon
5 of 6 customers found this review helpful.

I bought this stem as an upgrade for my track bike. It's not the lightest stem out there, but it is quite stiff. That allows me to really put the power down in sprints, or hold a track stand with confidence.

Reviewed 6/14/2013
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Always dependable
by LC Cyclist
Cycling Enthusiast
Las Cruces, NM
3 of 3 customers found this review helpful.

I bought this Thomson X4 to replace one that my back was unable to take the lower drop anymore. I had a Thomson bolt break once and Thomson replaced it for no charge. Thomson produces excellent products and stands behind them.

Reviewed 4/19/2013
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Thomson - solid components
by Anonymous
3 of 7 customers found this review helpful.

Some measure of vanity played a part in this purchase (I have a Thomson post).

I did want a slightly shorter stem - I am getting older and less flexible.

It's a quality Thomson part. Was easy to install. Had good directions. Looks nice.

I can't really say that I noticed any huge changes on swapping a stem. The stem is shorter, so I suppose I could say it is stiffer, but that may be more a result of changed riding geometry than the stem.

Reviewed 8/24/2012
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Very happy
by Cirrus2210
Casual Cyclist
Huntsville, TX
1 of 3 customers found this review helpful.

Still kinda new to mountain biking, but I needed a new stem so I went for the best. Feels solid and seems incredibly well made. It also made my bike fit me much better, but that's probably more of the change in length. Still, I'm very happy with the stem (110mm) and would definitely recommend it to others.

Reviewed 8/16/2012
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Completely solid stem
by earlfoss
Competitive Racer
Madison, WI
2 of 2 customers found this review helpful.

This stem does what a stem should do. It looks great, it's stiff and once installed you never have to think about it again. Make sure to follow torque specs and it will outlast the rest of the bike.

Reviewed 3/26/2012
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Sturdy design, great weight, functional well made parts, and price make this a great stem for non-elite XC and all-mountain riding security
by Tibeerius
Competitive Racer
La Mesa, CA
1 of 2 customers found this review helpful.

I ordered a custom ti mt bike that was to have a 110 vs 100 mm stem and selected Thomson 110 as the product of choice for cost as well as strength. There are less heavy stems out there but this was ideal for me. I have a Thomson setback seat post as well and am happy with that in terms of strength and design. Weight works fine for all mt as well as my sport class XC racing. Bolts, when torqued to settings described do not slip and I fell worry free that they will come apart. I had a really good fall too and the stem was intact and true. Their models also provide different degrees of tilt so you should explore their options. I like this product enough that I am seriously switching to this as well for my road and commuting bike. Bottom line for me- the last bit of my custom bike to be dialed-in was the setback seatpost and a slightly elongated stem. The choices in models available make this a great choice of stems for multiple use.

Reviewed 2/16/2012
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Strong and very light!
by The Dude
Cycling Enthusiast
2 of 4 customers found this review helpful.

There are lighter stems out there but not ones that are in the same weight category but still have the same strength. Thomson makes some of the strongest components.

Reviewed 1/19/2012
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Simple, timeless and priceless.
by tboseman
Cycling Enthusiast
ATL, GA
9 of 9 customers found this review helpful.

I've built two road bikes and two mountain bikes using Thompson's stems and seat posts. They are the parts of the bike I forget about. These products are not flashy and bling which I like. They are all business and do their job with out fail. Everything about them from build, price and weight is above and beyond any other product I've used.

Reviewed 12/10/2009
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