Mountain bike handlebars are a crucial contact point, influencing control, comfort, and overall riding experience. While stock handlebars are often functional, upgrading can significantly enhance your bike’s performance. Among the premium upgrades available, Carbon Fiber Mountain Bike Handlebars stand out for their exceptional blend of lightweight design, vibration dampening, and stiffness. This guide delves into the world of carbon handlebars, exploring top models and key considerations to help you choose the perfect upgrade for your mountain bike.
Deity Components Speedway 35 Carbon Riser
Deity Components Speedway 35 Carbon Riser mountain bike handlebars
The Deity Speedway Carbon handlebar immediately impressed our testers with its comfortable feel and high-performance characteristics. It consistently ranked at the top of our tests, boasting modern geometry, a sleek design, and a lightweight yet robust construction. We found it challenging to fault this handlebar, which delivers exceptional performance across various riding disciplines. The robust 35mm clamp size, combined with a uni-directional carbon layup and an 810mm width, provides remarkable control and precise handling in diverse trail conditions.
Beyond precision, the Speedway Carbon excels in rider comfort. Deity has expertly engineered this carbon fiber mountain bike handlebar to offer noticeable vibration dampening without compromising control. Its geometry includes a 9mm backsweep and 5mm upsweep, available exclusively in a 35mm clamp, 30mm rise, and 810mm width configuration. The Speedway comes in a sophisticated matte black carbon finish, complemented by nine logo color options, allowing for customization to match your bike or other Deity components.
Like other carbon fiber mountain bike handlebars we evaluated, the Speedway carries a higher price tag compared to aluminum counterparts. While lightweight, it’s not the absolute lightest in our test group, which might be a consideration for riders prioritizing minimal weight above all else. Additionally, the single 30mm rise option might not suit every rider’s preference. However, we were thoroughly impressed with the Speedway Carbon’s overall performance, deeming it an excellent choice for trail, enduro, and even downhill riding. For riders seeking to reduce weight and invest in carbon, the Speedway Carbon presents a compelling upgrade.
Deity Speedway Carbon handlebar upgrade for enhanced mountain bike control
The Speedway is a significant upgrade, enhancing your bike’s cockpit with superior performance.
OneUp Components Carbon Handlebar
OneUp Components Carbon Handlebar for mountain biking
OneUp Components is renowned for producing high-quality mountain bike components at reasonable prices, and their Carbon Handlebar perfectly exemplifies this reputation. While it represents a larger investment than an aluminum bar, it’s notably more accessible than many other carbon fiber mountain bike handlebars in our review. Despite its straightforward name, the OneUp Carbon Handlebar is far from basic. It’s an impressively crafted product, delivering excellent control through a robust 35mm clamp diameter, 800mm width, and a comfortable 8-degree back sweep and 5-degree upsweep.
Unique among tested models, OneUp has ovalized the handlebar in the transition/taper zone. This design innovation increases vertical compliance and significantly enhances its vibration absorption capabilities. The result is one of the most comfortable handlebars we tested. It effectively performs as advertised, leaving our hands feeling fresher without any perceived compromise in responsiveness or control. The 20mm rise version we tested is remarkably light at 223 grams, and a 35mm rise option is also available, adding only a few more grams. The stealthy black carbon finish is accented by subtle logos, and OneUp offers decal kits ($5.50) in a wide array of colors for riders seeking a customized look.
Although the OneUp Carbon Handlebar is offered in an 800mm width, it includes convenient hash marks on both ends for easy trimming to your preferred width. It is exclusively available with a 35mm clamp diameter, meaning you might need a new 35mm clamp stem if your current setup uses a 31.8mm stem. Beyond this, it stands out as one of the best models we’ve tested, offering an affordable entry point into the world of carbon fiber mountain bike handlebars while delivering significant weight reduction, enhanced control, and superior comfort.
OneUp Carbon Handlebar: a top choice for comfort and value in carbon mountain bike handlebars
The OneUp Carbon Handlebar is not only a great value but also a tester favorite, blending comfort, control, and aesthetics.
Santa Cruz Bicycles Carbon 800 Riser
Santa Cruz Bicycles Carbon 800 Riser mountain bike handlebars
The Santa Cruz Carbon Riser pleasantly surprised us, exceeding expectations for a major bike brand’s in-house components. Santa Cruz’s extensive experience and expertise in carbon fiber, evident in their high-quality frames and wheels, translates seamlessly into their handlebars. These handlebars, specified on their high-end complete bikes and available as an aftermarket upgrade, are clearly well-engineered and built to last. We found these lightweight and subtly styled carbon fiber mountain bike handlebars to offer a comfortable geometry with a 9mm backsweep, 5mm upsweep, and a 20mm rise, coupled with impressive stiffness for demanding terrain.
The bar is also finely tuned to provide just the right amount of compliance and vibration dampening, ensuring hand comfort throughout long rides. The Carbon Riser is offered in two widths: 800mm (tested) and 760mm. While the price of carbon fiber mountain bike handlebars can be a deterrent, these are competitively priced within the carbon market and genuinely enhance both comfort and control on the bike. Some riders may find the Santa Cruz branding less desirable, and the 20mm rise might not suit every preference. Nevertheless, we consider the Carbon Riser handlebars an excellent upgrade for any trail bike, delivering a winning combination of lightweight construction, precise control, and effective vibration damping.
Santa Cruz Carbon Riser: lightweight and balanced carbon handlebars for trail bikes
The Santa Cruz Carbon Riser is a lightweight handlebar offering a balanced ride feel, making it a top carbon choice.
SQlab 30X 12-Degree Carbon
SQlab 30X 12-Degree Carbon mountain bike handlebars
SQlab takes a distinctly scientific approach to cycling ergonomics. While best known for their saddles, they also produce a range of mountain bike handlebars designed to enhance rider comfort through improved ergonomics. In contrast to the common 8-10mm backsweep found in most handlebars, SQlab designs their 30X Carbon bars with a more pronounced 12mm (tested) or 16mm backsweep. They assert that this increased backsweep facilitates a more natural alignment from the lower arm to the hand, particularly in a more upright riding posture. The 12-degree version we tested initially appears visually distinct, but during testing, the added sweep felt subtly different at first and became virtually imperceptible on the trail.
In terms of performance, the 30X is notably stiff and robust, providing precise control. Simultaneously, the 31.8mm clamp diameter and carbon fiber construction impart forgiving vertical compliance and vibration-absorbing properties. The 780mm width is suitable for most riders, and it’s available in 15mm, 30mm, and 45mm rise options. Although the 30X Carbon comes at a premium price, SQlab offers an aluminum version with identical sweep and rise options at a significantly lower cost. It’s important to note that SQlab’s rise measurements may differ somewhat from other brands.
The enhanced backsweep of the 30X bars is likely not for everyone, positioning it as a niche product that may offer superior comfort for specific riders. If you don’t typically experience discomfort with standard handlebar sweeps, these carbon fiber mountain bike handlebars might not be essential. However, for those who struggle with wrist pain or discomfort during rides, the 30X Carbon could be the solution.
SQlab 30X Carbon handlebars for ergonomic comfort and wrist pain relief
If wrist discomfort is an issue, the 12 or 16-degree sweep of the SQlab 30X offers a potentially more ergonomic solution in a carbon handlebar.
Race Face Next R 35 Carbon
Race Face Next R 35 Carbon mountain bike handlebars
Race Face is a leading name in bike components, and their Next R 35 Carbon handlebar stands out as a top performer in lightweight design. At a mere 215 grams, it was the lightest bar we tested, offering a straightforward way to reduce bike weight. Despite its featherlight construction, the 35mm bore size ensures a stiff clamp interface, and the Next R delivers excellent leverage and control. It also effectively dampens high-frequency vibrations, contributing to hand comfort on longer rides. Constructed with a uni-directional carbon fiber layup, it features an 800mm width, 8 degrees of backsweep, and 5 degrees of upsweep.
Race Face provides the Next R in 10mm, 20mm, and 35mm rise options, allowing riders to fine-tune their bike fit. The matte clear coat finish adds a touch of class, and six logo color options offer customization possibilities. While the Next R handlebar excels in lightweight performance, its vibration absorption is slightly less pronounced compared to our top-rated models. It also represents one of the more expensive options in our test. However, for riders prioritizing weight reduction without sacrificing control, the Next R is an excellent choice.
Race Face Next R: the lightest carbon handlebar for mountain biking
The Next R is an exceptionally lightweight carbon handlebar, ideal for any mountain bike discipline or riding style.
Ibis Carbon Adjustable Width Handlebar
The Ibis Carbon Adjustable Width handlebar presents a unique and innovative design, allowing riders to adjust the handlebar width for experimentation or to suit varying riding needs. By incorporating threaded aluminum inserts at the ends of this carbon fiber mountain bike handlebar, Ibis enables width adjustments between 750mm and 800mm. These aluminum inserts can also be trimmed for intermediate widths, and replacement inserts are available for $15 should adjustments not go as planned. Beyond its adjustability, the Ibis handlebar is competitively lightweight and offers good control with a comfortable, well-damped ride feel.
While the Adjustable Width handlebar provides adequate control in most situations, it feels slightly less stiff than other carbon fiber mountain bike handlebars we evaluated. This subtle difference means it may not offer the same level of sharp control in very demanding terrain. It is also exclusively available with a 31.8mm clamp diameter, potentially requiring a stem change for bikes currently using 35mm clamp stems. However, this lightweight, comfortable, and innovative adjustable handlebar is otherwise highly commendable.
Ibis Adjustable Width Carbon Handlebar: innovative width adjustability for mountain bikers
The Ibis Adjustable Width handlebar’s design allows for width customization between 750mm and 800mm, with trimmable inserts for intermediate sizes.
ENVE M7 Handlebar
ENVE M7 mountain bike handlebars for aggressive riders
ENVE Composites, a premium bike component manufacturer, is notable for producing carbon fiber products in the USA. Renowned for their wheels, ENVE also offers a comprehensive range of cockpit components for road, gravel, and mountain bikes. The ENVE M7 is their “35mm bar for the most aggressive and demanding riders.” For aggressive trail, enduro, or downhill riders seeking an uncompromisingly stiff and lightweight handlebar, the M7 is an ideal match. This carbon fiber mountain bike handlebar delivers ultra-precise steering, handling, and immediate response to rider inputs.
It features a comfortable 8mm backsweep and 4mm upsweep and is available in 10mm, 25mm, and 40mm rise options to accommodate rider preferences. The M7 boasts ENVE’s signature impeccable finish and build quality, and includes a decal sheet for coordinating logos with ENVE wheels or other components. These are among the stiffest handlebars we tested. While providing exceptional control, the M7 doesn’t quite match the vibration-damping capabilities of top-rated models like the Deity Speedway Carbon. Some testers found it to feel less compliant and somewhat harsh, occasionally leading to hand fatigue on extended descents. However, if handlebar stiffness and control are your top priorities, the M7 is exceptionally well-suited to your needs.
ENVE M7: the stiffest carbon handlebar for maximum control on demanding trails
The M7 is a robust carbon handlebar engineered for maximum stiffness, providing precise control at high speeds and in challenging conditions.
Why Choose Carbon Fiber Mountain Bike Handlebars?
Upgrading to carbon fiber mountain bike handlebars offers several key advantages that can significantly improve your riding experience. Here’s why carbon might be the right choice for you:
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Weight Reduction: Carbon fiber is significantly lighter than aluminum. Shaving grams from your handlebar can contribute to a more responsive and agile bike, especially noticeable on climbs and during quick maneuvers.
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Enhanced Vibration Damping: Carbon fiber has inherent vibration-damping properties. This means carbon fiber mountain bike handlebars can absorb more trail buzz and high-frequency vibrations compared to aluminum, leading to reduced hand fatigue, arm pump, and increased comfort on longer, rougher rides.
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Increased Stiffness-to-Weight Ratio: Carbon fiber allows manufacturers to create handlebars that are both exceptionally stiff and lightweight. This stiffness translates to more precise steering and handling, especially crucial for aggressive trail riding, enduro, and downhill disciplines.
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Design Flexibility: Carbon fiber’s moldable nature allows for more complex and optimized handlebar designs. Manufacturers can fine-tune the layup and shape to achieve specific performance characteristics, such as targeted flex zones for comfort and reinforced areas for strength and stiffness.
Handlebar Considerations: Carbon Fiber Focus
When selecting carbon fiber mountain bike handlebars, several factors are crucial to consider to ensure you choose the best option for your riding style and bike.
Width
Handlebar width is a critical aspect of bike fit and control. Modern mountain bikes, especially those designed for trail, enduro, and downhill, often come with wider handlebars (760mm to 800mm+). Wider bars offer increased leverage, enhancing control and stability, particularly at higher speeds and on technical terrain. However, width is also a matter of personal preference and body size.
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Experimentation: Many riders benefit from wider bars, but excessively wide bars can lead to discomfort and reduced maneuverability in tight spaces. Most carbon fiber mountain bike handlebars are wide (around 800mm) and can be trimmed down to your preferred width. Start wider and gradually trim until you find your sweet spot.
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Matching Riding Style: Aggressive riders often prefer wider bars for maximum control on descents, while cross-country riders might opt for slightly narrower widths for improved aerodynamics and climbing efficiency.
Geometry: Rise and Sweep
Handlebar geometry, specifically rise and sweep, significantly impacts rider comfort and body position.
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Rise: Rise refers to the vertical height of the handlebar above the stem clamp. Higher rise bars (20mm to 40mm) promote a more upright riding position, often favored for trail, enduro, and downhill riding. They can enhance comfort and control, especially on steep descents. Lower rise or flat bars position the rider more forward and aggressive, common in XC and trail riding for weight distribution and climbing efficiency.
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Sweep (Backsweep and Upsweep): Sweep angles affect wrist comfort and ergonomics. Backsweep angles the bars back towards the rider, while upsweep provides a slight upward angle. Most carbon fiber mountain bike handlebars feature between 7° to 9° of backsweep and 4° to 6° of upsweep, offering a comfortable and natural wrist position for most riders. Some brands, like SQlab, offer alternative sweeps for riders with specific ergonomic needs.
Clamp Diameter
The clamp diameter is the handlebar section that attaches to the stem. Two primary diameters exist: 31.8mm and 35mm.
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35mm vs 31.8mm: 35mm clamp diameters have become increasingly popular, promoted for increased stiffness at the stem-bar interface. However, advancements in carbon fiber technology have allowed 31.8mm bars to achieve comparable stiffness while sometimes offering a bit more compliance. 35mm bars are often associated with aggressive riding styles and wider bars, while 31.8mm remains a versatile standard, particularly for riders prioritizing a balance of stiffness and compliance.
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Compatibility: Ensure the clamp diameter of your chosen carbon fiber mountain bike handlebar matches your stem. Switching diameters will necessitate a new stem.
Stiffness, Compliance, and Control in Carbon
The beauty of carbon fiber mountain bike handlebars lies in the ability to fine-tune stiffness and compliance.
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Stiffness for Precision: Stiffness is crucial for direct steering input and control, particularly in demanding terrain. Some carbon fiber mountain bike handlebars are engineered for maximum stiffness, favored by aggressive riders who prioritize razor-sharp handling.
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Compliance for Comfort: Compliance, or vertical flex, allows the handlebar to absorb vibrations and trail chatter. A well-designed carbon fiber mountain bike handlebar balances stiffness with strategic compliance, reducing hand fatigue and improving comfort without sacrificing control.
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Finding the Balance: The ideal carbon fiber mountain bike handlebar offers a harmonious blend of stiffness and compliance. Models like the Deity Speedway Carbon, OneUp Carbon, and Santa Cruz Carbon Riser are praised for achieving this balance, providing both precise control and comfortable vibration damping.
Weight Considerations
Weight is a significant advantage of carbon fiber mountain bike handlebars.
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Weight Savings: Carbon fiber handlebars are considerably lighter than aluminum equivalents, often saving 50-100 grams or more. This weight reduction contributes to improved bike agility, acceleration, and climbing performance.
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Lightweight Without Compromise: Modern carbon fiber mountain bike handlebars achieve impressive strength and durability despite their low weight. Reputable brands utilize advanced layups and testing to ensure their carbon bars can withstand the rigors of mountain biking.
Style and Design
While performance is paramount, the aesthetics of your carbon fiber mountain bike handlebars also matter.
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Finish and Aesthetics: Carbon fiber handlebars often feature sleek finishes and subtle graphics. Many brands offer color options or decal kits to match your bike’s components and personal style.
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Design Innovation: Some carbon fiber mountain bike handlebars incorporate innovative designs, such as the Ibis Adjustable Width bar or the OneUp Carbon’s ovalized section, aimed at enhancing performance and customization.
Conclusion: Elevating Your Ride with Carbon Fiber
Upgrading to carbon fiber mountain bike handlebars is a worthwhile investment for riders seeking enhanced performance, comfort, and weight reduction. While the initial cost is higher than aluminum options, the benefits in vibration damping, stiffness-to-weight ratio, and overall riding experience are often substantial. By carefully considering factors like width, geometry, clamp diameter, and the balance of stiffness and compliance, you can select the perfect carbon fiber mountain bike handlebar to transform your mountain bike and elevate your time on the trail. Whether you prioritize lightweight performance, maximum control, or all-day comfort, there’s a carbon handlebar designed to meet your specific needs and enhance your mountain biking adventures.
