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Buying the right 40mm rise handlebar is really about one question: do you want your hands higher without giving up control on the trail? A 40mm rise lifts your grips 40mm higher, easing back and wrist strain while keeping your weight centered for cornering. This guide covers the six strongest options in that exact range, from budget alloy bars to premium carbon, so you can match the right bend to your riding style.
I’m Min — the founder and writer behind Gadgets Feed. This guide is built by comparing the manufacturers’ published specifications and the patterns across verified customer reviews, so you get each pick’s real strengths and trade-offs instead of marketing spin.
One quick note before the list: this roundup uses flexible matching for the rise figure, so a couple of picks sit very close to 40mm rather than dead-on it, but they serve the same purpose. The goal is simple — find the 40mm rise mtb bars that fit your stem, your height, and the way you actually ride.
Our Picks at a Glance
How To Choose The Best 40mm Rise MTB Bars
A 40mm rise bar is a targeted fix for a specific problem: your cockpit feels too low and too far away. Before you pick one, you need to check three numbers on your current setup — the clamp diameter, the width you want, and how much backsweep your wrists can handle.
Clamp Diameter Is The First Filter
The clamp area is the thick center section that bolts into your stem. Older and budget bikes use a 25.4mm clamp, while modern trail and enduro bikes use 31.8mm. If you buy the wrong one, it either rattles loose or physically will not fit. Measure your stem’s opening with a caliper or check your bike’s spec sheet before ordering.
Width And Sweep Decide Comfort
Width controls leverage and steering stability, while backsweep (the angle the grips bend back toward you) sets your wrist angle. A wider bar with more sweep puts your hands in a more natural, neutral position. The trade-off is that very wide bars are harder to squeeze between trees on tight singletrack.
Material Sets The Weight And The Ride Feel
Aluminum bars are the everyday choice: stiff, durable, and affordable. Carbon bars cost more but absorb more trail buzz, which helps on long rough rides. Heavier riders or aggressive jumpers will want the impact strength of a quality alloy or a reinforced carbon layup.
Quick Comparison
| Model | Best For | Rise | Clamp | Width | Amazon |
|---|---|---|---|---|---|
| Spank Spoon 40★ Best Overall | Best Overall all-mountain | 40mm | 31.8mm | 31.55″ | Amazon |
| Renthal Fatbar 35Premium Pick | Premium carbon upgrade | 40mm | 35mm | 35.43″ | Amazon |
| Funn Upturn | Trail & BMX control | 40mm | 31.8mm | 785mm | Amazon |
| BUCKLOS 25.4mm | Budget-friendly riser | 40mm | 25.4mm | 28.35″ | Amazon |
| Origin8 Urban-Pro | Upright commuter comfort | 40mm | 25.4mm | 560mm | Amazon |
| Spank HBAR Spoon 25 | Extra height & wide control | 60mm | 25.4mm | 31″ | Amazon |
In-Depth Reviews
1. Spank Spoon 40 Handlebar
Our pick — over 4.5★ from 350+ verified ratings; the strongest balance of quality and price.
The crowd favorite that blends freeride strength with a home-mechanic-friendly price
The Spank Spoon 40 is the bar that keeps showing up in owner garages, and the reason is simple: it nails the 40mm rise you actually want at 16 ounces without feeling flimsy. It carries a freeride-inspired all-mountain geometry, which in plain terms means it is built to handle both park sessions and long trail days with the same composure. The shot-peening and anodizing on the aluminum adds fatigue life, so the bar resists the kind of micro-cracks that eventually kill cheaper alloy parts.
Buyers consistently praise the quality, value, and the rise itself, and there are a couple of honest quirks worth knowing. The bar is labeled 40R but tends to measure closer to 38mm in practice — as buyers report, it’s the “Perfect amount of rise on my Marlin 6. Says 40 mm but really 38mm.” That handful of millimeters rarely matters on the trail. The other bonus is the packaging: the box doubles as a plastic front mud guard, which owners treat as a free fender worth having.
At 31.55 inches wide, it gives you a solid stable platform for steering, and it slots into the modern 31.8mm clamp size that most current trail bikes use. If you are coming from a lower bar, this lift puts your hands in a more upright position — exactly the relief that owners describe for their wrists and backs. It is a genuinely versatile pick that works whether you are upgrading a hardtail or refreshing a full-suspension rig.
What Owners Rave About
- Rock-solid build that feels planted in the park and on the trail
- Quality earns the most praise by far — a big chunk of buyers single it out
- Value for money is the second-most-mentioned win, making it a smart budget-minded upgrade
Honest Trade-Offs
- The labeled 40mm rise actually measures closer to 38mm
- No cut markings, so you’ll want your own tape and hacksaw if trimming width
Reach for this if: you want a proven, versatile 40mm rise bar that won’t bust your budget and handles everything from singletrack to bike park laps.
Look elsewhere if: you need an exact 40.0mm measurement on paper — this one arrives a couple of millimeters short.
2. Renthal Fatbar 35 Handlebar
An oversized-clamp legend that trades universal fit for pinpoint stiffness
Renthal has been making handlebars for a long time, and the Fatbar 35 is the brand’s statement that bigger clamp diameter means better steering precision. The 35mm oversize center section is stiffer than the older 31.8mm standard, so input from your hands transfers to the front wheel with less flex. That makes it a favorite among riders who want a rock-solid front end on rough descents. It weighs just 13.6 ounces, which is remarkably light for a bar this stiff.
This one is built from 7-series aluminum, a higher-grade alloy that resists bending under hard impact. Owners describe the quality as exactly what you expect from Renthal — light, well-finished, and reassuringly strong. The catch is compatibility: a 35mm clamp requires a stem that is also 35mm, which is common on newer enduro and downhill bikes but not on older or entry-level builds. If your stem is 31.8mm, you would need a shim or a different bar entirely.
You get a 40mm rise (the distance your hands sit above the stem) that lifts your hands for better breathing room and control, without the extreme posture of a full high-rise bar. At 35.43 inches wide, it is one of the broadest bars in this lineup, giving you maximum leverage for steering. The trade-off of that width and stiffness is a firmer ride feel — you feel more of the trail through your hands, which aggressive riders tend to love and casual cruisers may find harsh.
The stiff-handler’s pick: if you run a 35mm stem and want maximum steering precision with minimal weight, this is the premium upgrade that earns its reputation.
Who should pass: anyone with a standard 31.8mm stem — you’d be buying a bar you can’t clamp without adapters.
3. Funn Upturn Riser Handlebar
A 785mm-wide riser that turns twitchy bikes into stable, confident cruisers
The Funn Upturn is built around one idea: a wide, upright cockpit gives you better visibility and easier handling on technical terrain. At 785mm wide, it is the broadest bar in this whole lineup, which translates directly to more steering leverage and a calmer feel at speed. It is crafted from AL6061 aluminum alloy, which keeps it lightweight while staying tough enough for BMX and aggressive trail riding.
Riders who are on the taller side will feel the difference immediately. As one 6’2″ owner put it, “your back will thank you” — the combination of rise and width opens up the cockpit so you are not folded over the front wheel. Quality is the thing owners praise most here, with many noting it performs as well as more expensive brands they have ridden before. There are also indication marks on the bar for positioning your shifter and brake levers, so setup is precise and repeatable.
The 40mm rise sits in the middle of Funn’s lineup, which also includes 55mm and 75mm options. Owners of the higher rise versions noted the extra height relieved hand pressure on long rides. The honest caveat is that this bar demands a 31.8mm stem clamp and nothing else — Funn is explicit that it is compatible with that size only. Measure your stem before ordering, because there is no adapting around a clamp mismatch.
Why Riders Pick It
- 785mm width gives serious steering stability and leverage
- Quality is the top praised aspect, with owners comparing it favorably to pricier bars
- Lightweight AL6061 build stays durable through spills and park laps
Check Before You Buy
- Only fits 31.8mm clamps — verify your stem first
- Very wide, so tight tree-lined trails take some getting used to
Grab this for: tall riders and anyone wanting to calm down a nervous, twitchy front end with maximum width and a solid 40mm lift.
skip it if: your bike runs a non-31.8 stem or you spend most of your time on narrow singletrack.
4. BUCKLOS 25.4mm Mountain Bike Handlebars
A genuinely cheap riser that has survived three full seasons without complaint
The BUCKLOS handlebar is the answer for riders who just want a taller position without spending much. It is made from aluminum alloy 6061 with a matte black finish, which keeps it both strong and lightweight. The brand offers this same bar in 20mm, 40mm, 60mm, and 100mm rises, so you can experiment with different heights for very little money. Owners mention the weight as the most-praised aspect, noting it feels lighter than their stock bars.
The durability here is proven by time in the saddle. As customers note, “3 season with this low cost bars. So far so good” — which is about the highest praise a budget part can earn. The 40mm rise version gives an upright stance that riders say reduces wrist stress and stabilizes older frames. The 25.4mm clamp diameter means it slots straight onto older and entry-level mountain bikes, road bikes, and many hybrids without adapters.
The catch is width and sizing. At 28.35 inches, it is a good deal narrower than the modern 31-inch-plus standard, so riders who want a wide, stable platform will feel the difference. The size is also the one aspect owners are split on — some find the length perfect, while others wish it were wider and end up needing an adapter for e-bike setups. If you are on a classic 25.4mm cockpit and want a cheap, proven lift, this is a very hard value to beat.
The smart budget move: a lightweight 25.4mm riser that costs little and has already proven it can take three seasons of abuse.
Who it’s not for: riders wanting a modern wide platform — at 28.35 inches this leans old-school narrow.
5. Origin8 Urban-Pro Riser Handlebar
The narrow, lightweight riser that turns a road bike into an upright city cruiser
The Origin8 Urban-Pro takes a different path than the trail-focused bars above. It is a 560mm-wide riser aimed at commuters and city riders who want a more upright position without replacing their whole cockpit. The key stat is the 5-degree backsweep combined with a 40mm rise, which gently angles your wrists into a natural position. It also weighs in at just 10.4 ounces, making it one of the lightest bars in this roundup.
It is made from 6061-T6 butted alloy, which gives it a solid feel that owners describe as taking landings without bending. The value for money is the most-praised aspect, with riders noting it is a clean, neat, and stylish addition to a bike project. There is even a laser-etched graphic on the bar for a sharp factory look. On a folding bike like a Brompton, reviewers point out the 40mm rise is just right for adding height without needing new shifter and brake cables.
The honest limits: at 560mm, this is a much narrower bar than the trail options, so it is not built for aggressive off-road control. Durability also gets mixed feedback — while some find it very durable, others report the finish scratches easily. And the length is the most-discussed negative, with some riders finding it a little short for their preference. This is a comfort-and-commute bar first, not a trail weapon.
What City Riders Love
- Featherlight at 10.4 ounces
- 5-degree backsweep puts wrists in a natural, relaxed angle
- Value for money is the top praised aspect, with sturdy 6061-T6 build
Keep In Mind
- 560mm width feels narrow vs modern trail standards
- Finish scratches easily — a recurring owner note
Best suited for: commuters and folding-bike owners who want a light, upright riding position with a modest 40mm lift.
Think twice if: you need a wide bar for real off-road control — this one is narrow by design.
6. Spank HBAR Spoon 25
The extra-tall sibling that fixes back pain and tames big, heavy bikes
The Spank HBAR Spoon 25 is the 60mm-rise version of the Spoon family, for riders who find 40mm insufficient. The extra 20mm of height noticeably helps riders with back discomfort or those wanting a fully upright stance. It shares the same shot-peened and anodized aluminum construction as the 40mm Spoon, so it brings the same durability pedigree to a taller bend.
Owners praise the appearance most of all — this is a good-looking bar — with the rise itself the second-most-mentioned win. It also solves a very specific problem for utility riders: as one owner noted, “This extra wide bar made my big cargo bike way easier to control.” At 31 inches wide and just 15.52 ounces, it is both lighter and wider than you might expect for a high-rise bar. Riders coming from BMX and hybrid bikes particularly appreciate the generous backsweep (the angle the grips angle back toward you, which eases wrist strain).
The honest trade-off is compatibility. This bar uses the 25.4mm clamp standard, so it fits older and hybrid bikes, but not the modern 31.8mm stems found on current trail rigs. If your cockpit is 25.4mm and you want to sit noticeably taller, this is the one to reach for. If you are on a modern stem, the 40mm Spoon in position one is the better fit for your clamp size.
The tall-ride specialist: a 60mm rise that lifts you well clear of the bars — ideal for back relief and controlling heavy bikes like cargo rigs.
Who should skip: anyone on a modern 31.8mm stem, since this bar is locked to the older 25.4mm standard.
Understanding the Specs
Rise And Backsweep
Rise is the vertical distance the grips sit above the clamp — a 40mm rise lifts your hands 40 millimeters higher. Backsweep is the angle the grips bend backward toward you. More rise reduces lower-back strain, while more sweep relaxes your wrists. Together they set your whole upper-body position on the bike.
Clamp Diameter And Width
The clamp diameter (25.4mm, 31.8mm, or 35mm) must match your stem exactly or the bar will not fit. Width is measured end to end and controls steering leverage. Wider bars give more stability and control; narrower bars feel quicker and fit better in tight spaces. Measure both before you order.
FAQ
Will a 40mm rise bar fit my mountain bike stem?
What is the difference between a 40mm and 60mm rise handlebar?
Will a wider handlebar make my bike easier to control?
Do I need new brake and shifter cables with a riser bar?
How long does an aluminum mountain bike handlebar last?
Is a carbon handlebar better than an aluminum one?
What does the 31.8mm clamp size mean on a handlebar?
Can I cut a riser handlebar to make it narrower?
Will a higher rise bar help with wrist and hand pain?
What is backsweep and why does it matter?
Final Thoughts: The Verdict
For most riders, the 40mm rise mtb bars winner is the Spank Spoon 40 because it delivers proven quality, a spot-on rise, and real trail toughness at a price that makes sense for any upgrade. If you run a 35mm stem and want the stiffest front end possible, grab the Renthal Fatbar 35. And for tall riders or anyone wanting maximum width and stability, the Funn Upturn is the one to reach for — the crowd across these picks consistently lands on the Spank as the safest, most versatile first buy, backed by a huge base of happy owners.
How We Picked
We do not accept paid placement. Every pick is matched to a real buyer and a real use-case; we do not hands-on test units.
Sources & Methodology
Specifications: manufacturer listings and product documentation. Review insights: verified customer reviews, as of August 2026. Pricing: not shown on this page (it changes often); check the current price via the retailer link.
As an Amazon Associate, Gadgets Feed earns from qualifying purchases. This does not affect which products we feature.