Wondering what the best handlebar diameter between 15 to 40 mm is for your needs? We’ve tested and reviewed top options to help you find the perfect fit for a comfortable and controlled experience.
Choosing the right handlebar diameter is key to a comfortable and controlled ride. Whether you’re biking, fishing, or upgrading gear, the perfect fit makes all the difference. This guide will help you find the best handlebar diameter for your needs.
We’ve tested and reviewed top options, from bike handlebars to fishing rod grips. Discover durable materials, easy installation, and versatile designs that fit your lifestyle. Let’s find your ideal match and elevate your experience!
List of Top 8 Handlebar Diameter 15 To 40 Mm
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LOKTENWO Bike Handlebar Extender – 3.93″ Aluminum Extension with Aluminum Alloy Single-Clamp Mounting Base for Bicycle and Motorcycle, Fits Handlebar Diameters of 0.875″/ 1.0″/ 1.125″/ 1.26″ |
This LOKTENWO Bike Handlebar Extender is perfect for riders who want more space to attach their lights, phones, GPS devices, and cameras. It’s ideal for anyone looking to organize their handlebars and improve their riding experience. |
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Funn Upturn High-Rise Mountain Bike Handlebar with Bar Clamp 35mm and Width 800mm, Durable and Lightweight Alloy Riser Handlebar for MTB and BMX Bike, Rise 40mm MTB Handlebar (Black) |
This Funn Upturn High-Rise Mountain Bike Handlebar is perfect for MTB and BMX riders who want an upright riding position for better control and comfort on technical terrain. It’s also ideal for those who appreciate precise setup with its handy indication marks and a lightweight yet durable build. |
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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, Rise 15mm MTB Handlebar (Black) |
This handlebar is perfect for riders who want a tough, lightweight, and precise setup. It’s great for mountain, BMX, and road bikes, offering control and comfort for casual or intense rides. |
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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, Rise 15mm MTB Handlebar (Black) |
This handlebar is perfect for riders who want a strong, lightweight bar that fits mountain bikes with a 31.8mm clamp. It suits those who like a low, aggressive riding position for better control and speed on trails or roads. Whether you race hard or ride casually, this bar gives you precision and durability for all kinds of mountain biking and BMX adventures. |
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FIFTY-FIFTY Aluminium Alloy Mountain Bike Riser Handlebar, 35mm Diameter, 800mm Wide MTB Bars (38mm Rise, Black) |
This handlebar is perfect for mountain bikers who want to ride with more control and comfort. If you like hitting tough trails and need a lightweight, strong bar that helps you steer easily, this is made for you. Its extra-wide design and adjustable width make it great for all kinds of mountain riding. |
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Heat Shrink Wrap Tubing Sleeve X-Tube for Fishing Rods Grip Handle Cork with Non Slip and Insulation 3.3ft Length (Diameter 40mm, Blue) |
This blue heat shrink wrap tubing is perfect for fishermen and athletes looking to upgrade their grip on fishing rods, tennis rackets, and badminton rackets. It offers a comfortable, non-slip surface that’s easy to install for an instant performance boost. |
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Heat Shrink Wrap Tubing Sleeve X-Tube for Fishing Rods Grip Handle Cork with Non Slip and Insulation 3.3ft Length (Diameter 40mm, Black) |
This heat shrink wrap tubing is perfect for anyone who wants to improve the grip and comfort of their fishing rod, sports equipment, or household items. It’s easy to use and works great for DIY projects. |
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S SENQI Bicycle Drop Handlebar Aluminum Alloy Round Tube Gravel Handlebar 31.8 Diameter, 420mm-520mm,440mm-540mm,460mm-560mm 20mm Sink Height, for Touri(440mm-540mm) |
This handlebar is perfect for gravel riders and touring cyclists who want a lightweight, strong, and comfortable grip. If you need a handlebar that fits well, offers multiple hand positions, and supports bike cargo racks, this is made for you. It’s ideal for those who want to upgrade their ride with durable aluminum alloy and smart design. |
Detailed Reviews
Discover the perfect handlebar for your ride, with options ranging from 15mm to 40mm in diameter. We’ve analyzed the top choices to ensure you find the ideal fit for comfort and control. Get ready to upgrade your cycling experience with our expert picks!
1. LOKTENWO Bike Handlebar Extender – 3.93″ Aluminum Extension with Aluminum Alloy Single-Clamp Mounting Base for Bicycle and Motorcycle, Fits Handlebar Diameters of 0.875″/ 1.0″/ 1.125″/ 1.26″
The LOKTENWO Bike Handlebar Extender is strong and durable. It’s made from aluminum alloy with a CNC-machined clamp. This ensures long-lasting use for your rides.
It adds 3.93 inches of extra space to your handlebars. This helps you mount accessories like lights or phone holders. It also reduces clutter for a cleaner setup.
The kit includes soft rubber inserts for a perfect fit. It works with round handlebars of four sizes. Installation is quick and easy with the included hex wrench.
| Pros | Cons |
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Perfect For:
This LOKTENWO Bike Handlebar Extender is perfect for riders who want more space to attach their lights, phones, GPS devices, and cameras. It’s ideal for anyone looking to organize their handlebars and improve their riding experience.
Ready to Purchase?
2. Funn Upturn High-Rise Mountain Bike Handlebar with Bar Clamp 35mm and Width 800mm, Durable and Lightweight Alloy Riser Handlebar for MTB and BMX Bike, Rise 40mm MTB Handlebar (Black)
The Funn Upturn High-Rise Mountain Bike Handlebar is built for riders who want comfort and control. It fits only 35mm bar clamps, so check your stem size first. The handlebar is made from lightweight and durable alloy.
This handlebar helps you ride in an upright position for better visibility and easier handling on rough trails. It comes in three rise options—40mm, 55mm, and 75mm—so you can pick what feels best for you.
With clear indication marks for brakes and shifters, setting up your controls is simple and precise. It’s perfect for both MTB and BMX bikes, giving you strength without extra weight.
| Pros | Cons |
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Perfect For:
This Funn Upturn High-Rise Mountain Bike Handlebar is perfect for MTB and BMX riders who want an upright riding position for better control and comfort on technical terrain. It’s also ideal for those who appreciate precise setup with its handy indication marks and a lightweight yet durable build.
Ready to Purchase?
3. 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, Rise 15mm MTB Handlebar (Black)
Get ready to upgrade your ride with the Funn Full On Mountain Bike Handlebar. It is built tough with lightweight alloy and fits perfectly on MTB bikes with a 31.8mm clamp. This handlebar delivers strength without weighing you down.
It has a small rise of 15mm. This means your hands stay low and close for better speed. The small sweep keeps your wrists straight and strong. It helps you stay in control on any trail.
Made from strong AL6061 aluminum, this handlebar lasts long and feels light. It works great for BMX, downhill, and trail riding. Choose the Full On for power, control, and durability every ride.
| Pros | Cons |
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Perfect For:
This handlebar is perfect for riders who want a tough, lightweight, and precise setup. It’s great for mountain, BMX, and road bikes, offering control and comfort for casual or intense rides.
Ready to Purchase?
4. 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, Rise 15mm MTB Handlebar (Black)
The Funn Full On Mountain Bike Handlebar is designed for mountain biking enthusiasts. It features a 31.8mm clamp size and measures 810mm in width. This handlebar offers a lightweight yet sturdy option for various biking styles.
It has a small rise for an aggressive riding position. This helps reduce wind resistance. The smaller back sweep angle keeps your hands close to your body.
Made from triple butted AL6061 aluminum, it is both tough and light. The durable finish ensures it withstands intense rides. Whether you’re racing or casually riding, the Full On handlebar is an excellent choice.
| Pros | Cons |
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Perfect For:
This handlebar is perfect for riders who want a strong, lightweight bar that fits mountain bikes with a 31.8mm clamp. It suits those who like a low, aggressive riding position for better control and speed on trails or roads. Whether you race hard or ride casually, this bar gives you precision and durability for all kinds of mountain biking and BMX adventures.
Ready to Purchase?
5. FIFTY-FIFTY Aluminium Alloy Mountain Bike Riser Handlebar, 35mm Diameter, 800mm Wide MTB Bars (38mm Rise, Black)
Conquer any trail with the FIFTY-FIFTY Aluminium Alloy Mountain Bike Riser Handlebar! This super strong bar is built for adventure.
It’s lightweight and wide for easy control. Get ready for a more comfortable ride and sharper looks.
| Pros | Cons |
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Perfect For:
This handlebar is perfect for mountain bikers who want to ride with more control and comfort. If you like hitting tough trails and need a lightweight, strong bar that helps you steer easily, this is made for you. Its extra-wide design and adjustable width make it great for all kinds of mountain riding.
Ready to Purchase?
6. Heat Shrink Wrap Tubing Sleeve X-Tube for Fishing Rods Grip Handle Cork with Non Slip and Insulation 3.3ft Length (Diameter 40mm, Blue)
Heat Shrink Wrap Tubing is perfect for fishing rod grips. It’s soft, non-slip, and durable. The blue color adds a stylish touch.
It shrinks quickly and easily with heat. Use a hot air gun or boiling water to fit it perfectly. The 1.8:1 shrinkage ratio ensures a snug fit.
This tubing works for many handles, not just fishing rods. Choose from various sizes to match your needs. It’s a versatile and practical solution.
| Pros | Cons |
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Perfect For:
This blue heat shrink wrap tubing is perfect for fishermen and athletes looking to upgrade their grip on fishing rods, tennis rackets, and badminton rackets. It offers a comfortable, non-slip surface that’s easy to install for an instant performance boost.
Ready to Purchase?
7. Heat Shrink Wrap Tubing Sleeve X-Tube for Fishing Rods Grip Handle Cork with Non Slip and Insulation 3.3ft Length (Diameter 40mm, Black)
Upgrade your fishing rod grip with the Heat Shrink Wrap Tubing Sleeve X-Tube. Made from premium rubber, it offers a soft, non-slip, and comfortable hold. This durable sleeve meets RoHS standards for quality and safety.
It shrinks fast with a ratio of 1.8:1 at temperatures between 60-120°C. Just use a hot air gun or boiling water to get a perfect fit every time.
This versatile tube fits many handles like tennis rackets, bicycles, and kitchen tools. Available in sizes from 15mm to 70mm, it’s easy to cut and customize. Give your gear a fresh, secure grip that lasts.
| Pros | Cons |
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Perfect For:
This heat shrink wrap tubing is perfect for anyone who wants to improve the grip and comfort of their fishing rod, sports equipment, or household items. It’s easy to use and works great for DIY projects.
Ready to Purchase?
8. S SENQI Bicycle Drop Handlebar Aluminum Alloy Round Tube Gravel Handlebar 31.8 Diameter, 420mm-520mm,440mm-540mm,460mm-560mm 20mm Sink Height, for Touri(440mm-540mm)
Experience the perfect blend of strength and lightness with the S SENQI Bicycle Drop Handlebar. Crafted from durable aluminum alloy, it weighs just 565g to 605g depending on size. Its sleek black finish and ergonomic design offer multiple hand positions for comfort on every ride.
This handlebar fits bikes with a 31.8mm clamp and is ideal for touring, mountain, and road bikes. The 25° camber angle and 20mm sink height improve control and riding posture. Plus, the front rack space lets you easily add a cargo net for extra storage.
Upgrade your bike with this versatile and sturdy handlebar. Make sure to check your bike’s compatibility before ordering. Take your cycling experience to the next level with S SENQI’s smart design and quality build.
| Pros | Cons |
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Perfect For:
This handlebar is perfect for gravel riders and touring cyclists who want a lightweight, strong, and comfortable grip. If you need a handlebar that fits well, offers multiple hand positions, and supports bike cargo racks, this is made for you. It’s ideal for those who want to upgrade their ride with durable aluminum alloy and smart design.
Ready to Purchase?
Buying Guide
Choosing the right handlebar diameter is simple. It makes your ride more comfortable and controlled. The perfect fit changes everything.
Here’s what to consider when buying handlebars with diameters from 15 to 40 mm:
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Diameter Compatibility: Make sure the handlebar diameter matches your bike’s stem clamp size. Common sizes are 31.8 mm and 35 mm. Using the wrong size can cause poor fit or damage.
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Comfort and Grip: Thicker diameters offer more padding and comfort. Thinner bars give better control and precision. Choose what feels best for your hands and riding style.
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Material Strength: Aluminum alloys like AL6061 are strong and lightweight. They last long and handle rough rides well. Some bars use triple-butted aluminum for extra toughness without weight.
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Handlebar Width: Wider bars (around 780-810 mm) give more control on rough trails. Narrower bars suit faster, more aerodynamic riding. Pick a width that fits your riding terrain and body size.
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Rise and Sweep: Rise is how much the bar lifts up; sweep is the angle your hands rest at. Higher rise bars help upright posture and comfort. Lower rise bars suit aggressive, fast riding.
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Installation Ease: Look for handlebars with included clamps or adapters, like soft rubber inserts, for a snug fit. Tools like hex wrenches should be included for quick setup.
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Versatility: Some handlebars fit multiple bike types—MTB, BMX, road, or touring. Check if the bar suits your bike and riding needs.
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Additional Features: Markings for brake and shifter placement help precise setup. Some bars offer space for mounting accessories like lights or phone holders.
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Durability and Finish: A good finish protects against scratches and weather. Durable coatings keep your bars looking new and performing well.
By focusing on these factors, you’ll find a handlebar diameter that fits your bike and riding style perfectly. Enjoy a safer, more comfortable ride every time!