Bike Stems

Zipp's entire Service Course line proves that aluminum still has a place in cycling componentry -- it will never be as light as carbon, sure, but it will never be as expensive either, and that's enough of a reason for us to stand behind it. Zipp strikes an admirable balance between cost, weight,...

The Thomson X4 Stem utilizes a more traditional split clamp design to save weight without sacrificing stability and control. The X4 features a sculpted stem, sleek clamp bolts, and is made with 7000-series aluminum alloy to ensure torsional stiffness and precise steering. The X4 Stem comes with a...

Here's a shocker: the Thomson X4 Onepointfive stem is both stronger and lighter than their Elite stem. We don't understand how that happened either, but we consider it the standard for all other 1. 5" stems to live up to. The X4 sports a beefy 31. 8mm handlebar clamp, and they machined away all...

The Syntace FlatForce Stem delivers stiff, responsive handling in a lightweight package. Made from 7075 T7X alloy with hollow construction to reduce weight, this bar comes with claims that its stiffness and strength matches stems weighing over 200 grams. It's compatible with bars up to 800mm in...

Syntace's Megaforce2 Stem is designed specifically for the wide handlebars that have taken over the market. Its clamp face is an ultra-wide 42mm, which gives it exponentially better clamping force, which translates into less twisting of the bars, and more precise steering. It's also available in...

Equipped for oversized 31. 8-millimeter bars, the Syntace Force 109 stem features 3D-forged aluminum alloy construction for the utmost in strength and security. Its thicker stem tube boosts stiffness and strength, with its oversized diameter continuing to the clamp area. Titanium bolts shave off...

Splitting parts down the middle isn't usually a great way to make them stronger, but Renthal's Duo Stem isn't your usual bike part. Renthal's motocross background gives it a different perspective than most MTB part manufacturers, so maybe the uniqueness of the Duo shouldn't be surprising. By...

Renthal machines the Apex Stem from a solid piece of aluminum, so you know that it's equal to whatever abuse you throw at it on XC drag races or enduro bombing runs. The oversized clamping hardware secures the bar in place with a sort of 240-degree hug, virtually eliminating the targeted stress...

If you're keen on importing the new gravity standard of 35mm bars to your XC or all-mountain rig, then Face Face's Aeffect 35 Stem has you covered. Its 6061 aluminum body is lightweight and designed for single-crown forks, but it lets you replace your oversized 31. 8mm bar with an over-oversized...

35mm handlebars are blowing up, but the necessary stems are a little behind, so Race Face made the Turbine 35mm Stem to give fat-barred rippers a little bit of dap. It's largely the same as the standard Turbine, with a bombproof 7075 aluminum body, a four-bolt clamp, and opposing steerer bolts to...

The Race Face Turbine stem is built light enough to put a smile on any weight weenie's face, but it's built tough enough to handle all-mountain duties. The stem is made from 7075 aluminum, and weighs less than 140 grams (990mm). The tough, four-bolt clamp holds the bar securely in place without...

Give your cockpit a colorful facelift with the Thomson X4 Stem Dress Up Kit. Each kit includes a front handlebar clamp plate for your Thomson X4 stem, a color-coordinated 1-1/8 inch top cap, six black bolts, and six silver bolts to perfectly match your ride.

When creating the Descendant Stem, TruVatic set out to create a stem that could withstand the toughest trails and the burliest enduro runs without also breaking the bank. Machined from light yet strong 3D forged 7075 aluminum and featuring a pressure-dispersing four-bolt front plate, this stem is...

More recently known for their advances in the world of carbon, the engineering wizards at Zipp have shown they still know and value innovative aluminum componentry with the Service Course line. Zipp continues to impress us with its Service Course Stem, offering a highly functional design that...

When it was first unveiled, the peculiar shape of Zipp's SL Sprint Carbon Stem may have seemed a bit out of place when juxtaposed with traditional, tubular models. Now, assymetrical stems like it are common place because the SL Sprint's shaping and unidirectional carbon construction transmit...

Dialing in the ideal fit of your handlebars is key to enjoying your time on trails, and Syncros makes its XR 1. 0 Carbon Stem for XC and trail riders looking to do just that. The stem is constructed with lightweight, durable 7075 aluminum that's reinforced by an outer layer of carbon fiber for...

Roost berms, blast through descents, and take the challenging line through techy stretches with the added control of the Syncros XM1. 5 AM 35mm Stem. 3D-forged from 2014 aluminum with an oversized 35mm clamp, the stem confidently grips onto your bars to give you the stable platform you need to...

Syncros blended the best of two materials when designing its FL1. 0 Carbon Stem, which features carbon and aluminum in its construction for a mix of efficiency and lightness with affordability. Starting with treated 7075 aluminum for strength and durability in the initial shape, Syncros then...

The ARX LTD Stem is the only stem in 3T's road line made from carbon fiber. While we're not sure why the Team stem didn't get the same treatment, the end result is that the ARX LTD drops an additional 7g of claimed weight compared to the closest alloy competitor in the Italian manufacturer's...

There's a time and a place for loud and flashy. Sometimes that place isn't the cockpit of your bike. The 3T ARX Team II Stealth Stem adds a touch of elegance to your cockpit with a subtle, matte black finish that downplays the Team stem's stiff, lightweight performance. The Arx II Team continues...

Satin black is cool. Many of today's top-shelf bikes are designed with a menacing mix of gloss and satin black. To upgrade one of these race-bred rigs with bright, shouty components would defeat the purpose. To hang your handlebar on anything less than the 3T ARX LTD Stealth Stem would be nothing...

The 3T Arx Stem originally appeared in 2007. Since then this model has enjoyed continuous subtle refinement. The Arx II Team continues the original's tradition of simple, classic construction -- but with a design that drops grams from its already low weight. The 3T Arx Team II Stem takes the...

With its 7075 T6 body and titanium bolts, the Mountain Team Stem is the lightest offering in 3T's off-road line, comparing quite favorably with many road-specific stems. Low weight isn't synonymous with low reliability, though, and the already durable 7075 T6 alloy is made even more resistant to...

The Atlas Stem keeps the Race Face legacy alive by giving this stem enough strength for DH while remaining versatile and light enough for XC. It is constructed from 6061-T6 aluminum, which is durable enough for any mountain discipline. The clamp features four bolts and an interlocking, U-shaped...

Sharing its name with a large swath of desolate land on Mars, PRO's Tharsis Trail Stem anticipates you'll be taking it into some pretty inhospitable terrain as it sits at the helm of your trail, XC, or maybe even all-mountain rig. As such, PRO doesn't mess around with construction, CNC-machining...

If you're finishing off a dream build, consider ENVE's Stem as your final, high-end touch. Weighing in at just about 125 grams, it's among the lightest stems out there, but its stiffness and rigidity are what really make it one of the best all-around. The body of the stem is full carbon fiber,...

An industry first, the Enve Direct Mount Stem brings carbon to the world of triple clamp forks. Enve makes some of the strongest stems on the market, and this ultra-light, sub-120g design loses nothing in strength to alloy alternatives. The carbon layup produces a stem that's significantly...

The EC90 SL Stem is one of the lightest on the market, but that's a pleasant by-product of Easton's design principles. They set out to produce a stem that can handle the rigors of CX and XC racing. And, even after focusing on strength, this sculpted carbon stem just happens to be light enough for...

The Easton Havoc 35 Direct Mount Stem is truly a three-trickpony. Boasting ridiculous strength (yes, that's EA90 aluminum), unheard-oflight weight (just a hair over 100 grams), and Easton's new, innovative 35mmclamp, the Havoc 35 is going to be showing up on gravity-fed badasses' bikeseverywhere....

How do you make a single block of aluminum into arevolution' With a CNC machine and a ton of innovation. That was Easton'sapproach, anyway, when it set out to build the first over-oversized stem, theHavoc 35. The friendly folks at Easton noted that handlebars,especially DH bars, were getting...

Like the Easton Havoc Stem, Easton's Havoc Bolt-On Stem is CNC milled from a solid block of metal and is a thing of beauty. Also, it's a thing of precise function, designed to sync happily with a triple-crown fork and steer World Champion racers to victory. No less importantly, it's designed to...

The Easton Havoc Stem is built tough to go big, offering you stability and control when you're hitting jumps and sending gaps. The stem is CNC machined from a solid piece of aluminum and features Top Lock Technology, which delivers maximum strength at the bar/stem interface. The result is a stem...

Boasting Easton's highest stiffness-to-weight ratio yet, the Haven stem has quickly become a legend among trail riders. The Haven is built with CNC machined alloy and Easton's Top Lock technology to create a stem that can handle anything. If you have the Haven bar, this stem is the ideal match....

The Easton EA90 Stem sheds grams for race-minded riders, without sacrificing structural integrity or performance. Its EA90 aluminum tubing is the result of a 3D forging process, yielding Easton's lightest aluminum stem to date. Looking closely at the stem's faceplate, you'll immediately notice...

You've got a carbon frame, a carbon fork, a carbon seatpost, and a carbon bar. Hell, even your cages and pedal bodies are carbon. It's time to complete the unidirectional, high-modulus chain with the missing link: Easton's EC70 SL Stem. It's not as light as the only-weight-matters EC90 SL model,...

ENVE's Mountain Stem picks up where the original ENVE Stem left off, and gets a little shorter, a little lighter, and a little more "mountain-looking" in this iteration. Only the longest option, at 85mm, weighs in at over 100 grams. That's light, and that's all-in weight: stem, aluminum faceplate...