By PickSmartly Editorial Team
· Updated Aug 4, 2026
9.7PM Score
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6
Reviews Analyzed
1,596
Brands Ranked
1
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Upgrading your cockpit is one of the most impactful ways to transform how your bike feels under tension. When you opt for high-performance handlebars, you aren't just changing a piece of metal. You are recalibrating your leverage, your center of gravity, and your ability to absorb trail chatter. Whether you are looking to tighten up your steering response for technical climbs or gain more control during heavy landings, choosing the right bar is a critical decision that dictates your fatigue levels and confidence on the descent.
Editor's Choice
Our Top Picks for Funn Handlebars
The three standouts our editors recommend first — ranked by performance, value, and real-world reviews.
Funn Crossfire Mountain Bike Stem with 31.8mm Bar Clamp - Durable and Lightweight Alloy Bike Stem for Mountain Bike and BMX Bike, Length 35mm stem (Gr...
Funn Crossfire Lightweight Alloy Mountain Bike Stem
Ensure Proper Fit with The Crossfire : The Crossfire MTB stem is available for handlebars with a 31.8mm or 35mm diameters. This version is 31.8mm only. Please check your handlebar before purchasing and ensure you order the correct version
Versatile Use : A precision-engineered mountain bike stem for enduro, freeride, trail riding, XC and downhill. This is a perfect MTB stem as well as a BMX stem for riders on challenging terrain.
Tough and Light : CNC machined from high-quality aerospace 6061 alloy, Crossfire bicycle stem is featherweight but tough enough for the harshest conditions.
Match your style : There is a wide variety of colors available to choose from, allowing you to find the perfect match for your bike. Whether you want a bold and vibrant hue or a more subtle and understated shade, you are sure to find something that fits your riding style.
As every gram counts, Crossfire MTB stem allows you to ride under extreme conditions without worrying about adding any unnecessary weight to your ride.
You are halfway through a technical enduro descent, hitting roots and rock gardens, and you need your cockpit to feel absolutely rock-solid. The Funn Crossfire stem is built for exactly those high-stakes moments where precision steering is non-negotiable. CNC machined from aerospace-grade 6061 alloy, this 35mm stem manages to be incredibly lightweight without sacrificing the toughness required for downhill or BMX riding. It is a versatile piece of kit that fits right into an XC or freeride setup, especially since it comes in a vibrant green that lets you customize your bike's aesthetic. Because every gram matters when you are pushing your limits on challenging terrain, this stem offers a smart way to upgrade your handling without adding unnecessary bulk to your build.
Funn Full On Mountain Bike Handlebar with Bar Clamp 31.8mm and Width 810mm, Tough and Lightweight Alloy Riser Handlebar for MTB, BMX and Road Bike, Ri...
Perfect Fit : The Full on MTB Handlebars are available in 31.8mm and 35mm clamp diameters. This version is for mountain bikes with a 31.8mm bar clamp only, measuring the clamp size before purchasing to make sure the handlebar will fit your stem.
Small rise: Full on handlebar with smaller rise provides a more aggressive and aerodynamic position by positioning your hands and wrists relatively low and close to your body, which can help to reduce wind resistance and improve your performance on the road or on the trails.
Small Sweep : Full on handlebar built with a smaller back sweep angle will position the hands and wrists relatively close to the rider's body, which can further contribute to a lower, more powerful riding position.
Solid and Tough : Engineered from triple butted AL6061 aluminum to provide sturdy and lightweight construction, Full on has optimized durability yet still light as feather. With durable sandblasted and anodized finish, Full on is long-lasting and tough enough for intense riding.
Precision Control : Full on performs well both as bmx handlebars and downhill MTB bars, and is also the perfect choices for trail, enduro, XC and freeride. No matter is for casual riding or aggressive racing, Full on is always the top choice.
Most riders settle for bulky, heavy bars that sacrifice agility, but the Funn Full On series prioritizes a streamlined, aggressive geometry that changes how you engage with the trail. By utilizing a modest 15mm rise and a tighter back sweep, these bars pull your hands and wrists closer to your body, creating an aerodynamic profile perfect for everything from XC racing to downhill descents. The triple-butted AL6061 aluminum construction strikes that elusive balance between being featherlight and incredibly sturdy. I found the sandblasted, anodized finish feels premium and holds up well against the grit of intense riding. Whether you are hitting technical enduro lines or just want a more precise control feel on your BMX, these 810mm bars offer a professional-grade upgrade without the professional-grade weight penalty.
Funn Full On Mountain Bike Handlebar with Bar Clamp 35mm and Width 785mm, Tough and Lightweight Alloy Riser Handlebar for MTB, BMX and Road Bike, Rise...
Perfect Fit : The Full on MTB Handlebars are available in 31.8mm and 35mm clamp diameters. This version is for mountain bikes with a 35mm bar clamp only, measuring the clamp size before purchasing to make sure the handlebar will fit your stem.
Small rise: Full on handlebar with smaller rise provides a more aggressive and aerodynamic position by positioning your hands and wrists relatively low and close to your body, which can help to reduce wind resistance and improve your performance on the road or on the trails.
Small Sweep : Full on handlebar built with a smaller back sweep angle will position the hands and wrists relatively close to the rider's body, which can further contribute to a lower, more powerful riding position.
Solid and Tough : Engineered from triple butted AL6061 aluminum to provide sturdy and lightweight construction, Full on has optimized durability yet still light as feather. With durable sandblasted and anodized finish, Full on is long-lasting and tough enough for intense riding.
Precision Control : Full on performs well both as bmx handlebars and downhill MTB bars, and is also the perfect choices for trail, enduro, XC and freeride. No matter is for casual riding or aggressive racing, Full on is always the top choice.
The Funn Full On MTB Handlebar delivers a surprisingly aggressive riding posture thanks to its minimal 7mm rise. I found that the smaller back sweep angle pulls your hands and wrists closer to the body, which is a game-changer for anyone looking to shave off wind resistance or gain better leverage during technical climbs. Constructed from triple-butted AL6061 aluminum, these bars feel incredibly sturdy without adding unnecessary bulk to your cockpit. The sandblasted and anodized finish isn't just for looks. It adds a layer of toughness that can handle the abuse of enduro or downhill sessions. Whether you are hitting jumps on a BMX or carving trails on an XC rig, this 35mm clamp bar provides the precision control needed for high-intensity riding.
Funn Full On Mountain Bike Handlebar with Bar Clamp 31.8mm and Width 785mm, Tough and Lightweight Alloy Riser Handlebar for MTB, BMX and Road Bike, Ri...
Perfect Fit : The Full on MTB Handlebars are available in 31.8mm and 35mm clamp diameters. This version is for mountain bikes with a 31.8mm bar clamp only, measuring the clamp size before purchasing to make sure the handlebar will fit your stem.
Small rise: Full on handlebar with smaller rise provides a more aggressive and aerodynamic position by positioning your hands and wrists relatively low and close to your body, which can help to reduce wind resistance and improve your performance on the road or on the trails.
Small Sweep : Full on handlebar built with a smaller back sweep angle will position the hands and wrists relatively close to the rider's body, which can further contribute to a lower, more powerful riding position.
Solid and Tough : Engineered from triple butted AL6061 aluminum to provide sturdy and lightweight construction, Full on has optimized durability yet still light as feather. With durable sandblasted and anodized finish, Full on is long-lasting and tough enough for intense riding.
Precision Control : Full on performs well both as bmx handlebars and downhill MTB bars, and is also the perfect choices for trail, enduro, XC and freeride. No matter is for casual riding or aggressive racing, Full on is always the top choice.
Aggressive trail riders demanding a low-profile cockpit will find their perfect match in the Funn Full On handlebars. I was immediately struck by the 15mm small rise, which forces your hands and wrists into a much more aerodynamic and powerful position compared to standard high-rise bars. This setup is a game-changer for anyone looking to tuck in and reduce wind resistance during fast XC or enduro descents. The triple-butted AL6061 aluminum construction feels incredibly sturdy without adding unnecessary weight, and the sandblasted anodized finish looks premium. Whether you are hitting technical berms on a mountain bike or throwing tricks on a BMX, the small sweep and precision geometry provide the control you need to stay composed when the terrain gets rowdy.
Funn Black Ace UD Carbon Fiber MTB Riser Handlebar with Bar Clamp 31.8mm and Width 785mm - Mountain Bike Handlebar for Mountain Bike/BMX Bike (Rise 7m...
Fits mountain bike handlebars with 31.8mm bar clamp only. Please measure the clamp size before purchasing to make sure the handlebar will fit your stem.
Build to Last : Made from premium UD carbon fiber, the Black Ace handlebar is both lightweight and strong, able to withstand the rigors of aggressive riding and provide long-lasting performance as you race across the roughest of terrain!
Carbon Fiber Construction : Can help to reduce vibration and road chatter, they are more commonly used to improve the stiffness and responsiveness of the bike, which can help to enhance the rider's control and handling.
Highly Customizable : Individualize your bicycle handlebars with our logo color stickers, which come in six different colorways to perfectly match your ride.
Precision Control : Black Ace performs well both as BMX handlebars and downhill MTB bars, and is also the perfect choices for trail, enduro, XC and freeride. No matter is for casual riding or aggressive racing, Black Ace is always the top choice.
The immediate sensation of riding the Funn Black Ace is a noticeable reduction in that bone-jarring road chatter that usually plagues aggressive trail sessions. By utilizing premium UD carbon fiber, this 785mm riser bar manages to strike a rare balance between being incredibly lightweight and possessing the structural integrity needed for downhill or enduro racing. I found the 7mm rise provides just enough cockpit adjustment to improve control without feeling bulky. It is a versatile piece of kit that works equally well for XC or freeride, and the inclusion of six different colorway logo stickers means you can actually tailor the aesthetic to your specific bike build. Just ensure your stem is compatible with the 31.8mm clamp before you commit to the upgrade.
Funn Flame On Mountain Bike Handlebar with Bar Clamp 31.8mm and Width 680mm, Tough and Lightweight Alloy Riser Handlebar for MTB, BMX and Road Bike (B...
Fits mountain bike handlebars with 31.8mm bar clamp only. Please measure the clamp size before purchasing to make sure the handlebar will fit your stem.
With its unique combination of zero rise and zero upsweep, it provides the perfect riding position for speed and control, while its 9° backsweep ensures maximum comfort and a natural wrist position.
It's available in two different lengths - 680mm and 710mm - to cater to riders of different heights and preferences.
Expertly crafted from AL7050 material to deliver exceptional strength, resilience, and performance, Flame on has optimized durability yet still light as feather. With durable sandblasted and anodized finish, Flame on is long-lasting and tough enough for intense riding.
The Flame On is an unparalleled product that is crafted with the needs of XC racers in mind and is specifically designed to provide optimal speed, maneuverability, and control while traversing the challenging terrain encountered during the rigors of competitive racing.
Most riders assume that more rise equals better control, but the Flame On challenges that logic with a zero-rise, zero-upsweep profile designed specifically for pure speed. I found that this setup shifts the focus toward aggressive XC racing, where maneuverability through technical terrain is the priority. The 9° backsweep is the real hero here, keeping your wrists in a natural, comfortable position even during high-intensity sprints. Built from AL7050 alloy, it feels incredibly lightweight without sacrificing the toughness needed for competitive racing. The sandblasted and anodized blue finish isn't just for aesthetics. It adds a layer of durability that holds up against the rigors of the trail. If you have a 31.8mm stem, this is a professional-grade upgrade for anyone looking to shave weight and sharpen their handling.
The geometry of a handlebar is defined by several key measurements, but 'rise' and 'sweep' are the two most significant factors for rider comfort and control. Rise refers to the vertical distance from the clamp area to the top of the bar. A higher rise can help move your torso into a more upright position, which is often preferred by riders looking to reduce lower back strain or those navigating steep, technical terrain where a more vertical posture aids in weight distribution. Conversely, a lower rise offers a more aggressive, aerodynamic stance, ideal for high-speed stability.
Sweep, on the other hand, refers to the backward angle of the bars. A moderate amount of back-sweep allows your wrists to sit in a more natural, ergonomic position, reducing the risk of strain during long sessions. If you prefer a very direct, twitchy steering feel, you might opt for a bar with less sweep, but be prepared for increased pressure on your palms.
Material Composition and Weight
Most premium handlebars fall into two categories: aluminum and carbon fiber. Aluminum bars are the industry workhorse. They are incredibly durable, offer a predictable flex pattern, and are significantly more cost-effective. For riders who frequently crash or ride extremely aggressive lines, the resilience of a high-grade aluminum alloy is often the safer, more practical choice.
Carbon fiber bars are the choice for weight-conscious racers and enthusiasts seeking maximum vibration damping. Carbon has a unique ability to absorb high-frequency trail buzz, which keeps your hands from going numb on long descents. However, carbon bars require much stricter adherence to torque specifications during installation, as they are more susceptible to damage from over-tightening or impact against sharp rocks.
Width and Control Dynamics
The width of your handlebars dictates your leverage. A wider bar provides more mechanical advantage, making it easier to manhandle the bike through rock gardens and tight corners. However, there is a trade-off: excessively wide bars make it difficult to navigate narrow singletrack or weave through tight trees. When selecting width, consider your shoulder width and your riding style. Many modern riders prefer a wider setup for downhill stability, while cross-country specialists often opt for narrower bars to facilitate rapid direction changes and minimize wind resistance.
Clamp Diameter and Compatibility
Before finalizing your purchase, you must verify your stem's clamp diameter. While many modern mountain bikes utilize a standard 31.8mm diameter, some older or specialized setups may use 35mm. Ensuring a perfect match is vital. An improper fit can lead to catastrophic failure under load. Additionally, consider the 'oversized' trend in modern enduro and downhill riding, where 35mm components provide increased stiffness and strength at the cost of a slight increase in weight.
Final Recommendation Logic
To make the right choice, start by identifying your primary riding discipline. If you are a trail rider focused on efficiency, look for a mid-rise aluminum bar with moderate sweep. If you are a gravity-focused rider, prioritize a wider, lower-rise bar that offers maximum leverage. If budget allows and you prioritize hand comfort and weight savings, carbon is the premium route, provided you have the tools to install it safely.
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Jump back to our ranked picks or compare the shortlist side by side.
Quick answers about Funn Handlebars before you buy.
Riser bars feature a vertical lift that places the grips higher, improving upright comfort and control, while flat bars provide a lower, more aggressive aerodynamic profile favored by racers.
Width should be based on your shoulder width and riding style. Wider bars offer more leverage and stability for mountain biking, whereas narrower bars allow for quicker, more precise steering on roads.
Yes, you must match the clamp diameter of your stem to your handlebars. Most modern mountain bikes use 31.8mm or 35mm, while older or entry-level models often use 25.4mm.
Aluminum is the most versatile and durable option for most riders, while carbon fiber is preferred for high-end builds due to its superior vibration dampening and weight savings.
In most cases, yes, provided the clamp diameter matches your stem and the length fits your cockpit setup. However, changing styles will significantly alter your riding posture.
Backsweep is the angle at which the grips tilt toward the rider. A slight angle (5-7 degrees) helps reduce wrist strain and provides a more natural ergonomic position.
If you feel like you are reaching too far forward or if your arms feel strained during turns, the bars may be too wide for your torso length.
While carbon is incredibly strong under vertical loads, it is more sensitive to side impacts and improper clamping torque, which can cause cracking if not installed correctly.
Research & Insights
Our Analysis of Funn Handlebars
1,596Reviews Analyzed
6Products Evaluated
7.4Avg PM Score
1Brands Ranked
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Side by Side
Comparison Table
Compare the top 6 picks at a glance — select a column to sort.
Funn Crossfire Lightweight Alloy Mountain Bike Stem
Funn Full On Aluminum MTB Riser Handlebars
Funn Full On MTB Alloy Riser Handlebar
Funn Full On Aluminum MTB Handlebars
Funn Black Ace UD Carbon Fiber MTB Handlebar
Funn Flame On Alloy MTB Riser Handlebar