Haibike ALLMTN 4

About the Haibike ALLMTN 4

The Haibike ALLMTN 4 lands squarely in the all-mountain eMTB sweet spot, where you need a bike that'll haul you up endless switchbacks without complaint and still hold its line when the trail tips downward. Built around Bosch's latest Performance CX Gen 5 motor and a substantial 800Wh PowerTube battery, this aluminium-framed machine is designed for riders who measure their days in vertical metres rather than quick laps. It's not trying to be the lightest bike in the car park, and it doesn't pretend to be a nimble trail dancer - instead, it offers the kind of robust, get-it-done character that suits long mountain tours, challenging natural trails, and the sort of riding where you're grateful for every watt-hour when you're still three valleys from the van.

Haibike has pitched the ALLMTN 4 as an accessible all-rounder, and the spec sheet backs that up. You're looking at a mullet wheel configuration - 29-inch front, 27.5-inch rear - that blends the rollover calm of a big front wheel with a more playful, flickable back end. The suspension travel sits at 160 millimetres up front via a RockShox Psylo Gold RC fork, with 150 millimetres out back courtesy of a RockShox Deluxe Select R shock. It's a sensible spread for the intended use: enough squish to absorb the hits on rough descents, but not so much that you're bobbing your way through every climb. The Sram NX Eagle twelve-speed drivetrain keeps things simple and reliable, while TRP's four-piston Slate EVO brakes offer the kind of stopping power you'll want when you're carrying extra weight and speed down a long alpine descent.

This isn't a bike that'll win weight-weenie bragging rights, and Haibike doesn't pretend otherwise. The aluminium frame is built for durability and value rather than featherweight performance, and the overall package reflects a philosophy of getting riders out on big rides without demanding a second mortgage. The Bosch motor's 85 newton-metres of torque and 340 per cent pedal support mean you're never short of grunt, and the Purion 200 display keeps things straightforward - no faffing with smartphone apps mid-ride if you don't want to. Internal cable routing keeps the aesthetics tidy, though some riders have noted that Haibike's Modular Rail System can make bottle mounting a bit more involved than it needs to be. Still, for the rider who values capability and range over outright agility, the ALLMTN 4 makes a compelling case.

Haibike ALLMTN 4 geometry

Haibike hasn't published granular geometry figures for the 2025 ALLMTN 4 in the way some brands do, but the bike's posture and handling character are clear enough from time spent around it and from trusted coverage. The frame sizes run from small through to extra-large, and the overall stance leans toward stability rather than razor-sharp agility. You're sitting in a position that favours confident descending and all-day comfort over aggressive, forward-biased climbing - think endurance rather than cross-country race. The head angle is relaxed enough to inspire confidence when the trail gets steep and loose, and the longer wheelbase that comes with the mullet setup and generous chainstays means the bike tracks predictably rather than darting around beneath you.

That longer rear centre does have trade-offs. While it adds composure on fast, open trails and helps keep the front wheel planted on climbs, it can blunt the bike's responsiveness in tight, twisty sections where you'd normally flick the back end around. The mullet configuration is meant to offset some of that - by dropping a smaller rear wheel in, Haibike aims to keep things playful - but the reality is that the ALLMTN 4 still feels more at home on flowing singletrack and open mountain terrain than in tight, technical rock gardens. The reach figures (though not published in detail) appear moderate for each size, so you're not stretched out in an aggressive enduro crouch, but neither are you sitting bolt upright. It's a middle ground that suits the bike's all-day, all-mountain brief.

When you're climbing, the geometry keeps enough weight over the front to maintain steering precision, and the motor's power means you're rarely struggling for traction at the back. Descending, the bike settles into a composed, planted feel - you're not carving tight lines with the flick of a wrist, but you're also not fighting to hold your chosen trajectory. If your riding involves long fire-road climbs followed by sustained, rough descents rather than tight, technical switchback puzzles, the ALLMTN 4's geometry will feel right at home.

Component choices & upgrades

The ALLMTN 4 arrives with a well-sorted build that'll serve most riders straight out of the box. The Bosch motor and battery are the headline act, and they're non-negotiable - this is where Haibike has invested the budget, and it shows. The RockShox Psylo Gold RC fork offers rebound adjustment and a solid air-spring platform, while the Deluxe Select R shock keeps things simple with rebound damping. Neither is top-tier, but both do the job for the intended audience: riders who want to get out and ride rather than spend evenings tweaking compression curves. The Sram NX Eagle drivetrain is bombproof and easy to service, and the TRP four-piston brakes deliver confident stopping power with 203-millimetre rotors front and rear.

If you're planning to push the bike harder or you've outgrown the stock setup, there are sensible upgrade paths. The rear shock is the most obvious candidate - stepping up to something with a bit more tunability, like a RockShox Deluxe Select Plus or a Fox Float DPS, will give you more control over how the bike behaves under braking and through rough sections. The fork is adequate, but if you're riding aggressively or tackling genuinely rough terrain week in, week out, a fork with more sophisticated damping - perhaps a RockShox Yari or a Fox 36 Rhythm - will reward you with better small-bump sensitivity and more composed high-speed performance.

Tyres are another area where personal preference and local conditions come into play. The Continental Kryptotal and Xynotal rubber fitted as standard is capable in mixed conditions, but some riders have noted that grip can tail off in wet, greasy terrain. If you're riding in the UK's wetter months or on particularly slick trails, swapping to a Maxxis Minion DHF up front and a DHR II out back (as some spec sheets suggest as alternatives) will give you more confidence. The WTB rims are sturdy and wide enough to support those bigger tyres without issue. Beyond that, the cockpit is functional - Haibike's own-brand bar and stem do the job, though riders chasing a more dialled fit might want to experiment with bar width or stem length. The Limotec dropper post offers 170 millimetres of travel, which is generous and should suit most riders without needing an upgrade.

The key message here is that the stock build is already well-considered for the bike's intended use. Upgrades should be driven by your own riding style and terrain demands, not by any glaring weaknesses in the spec. If you're a newer rider or you're simply after a capable machine for weekend adventures, you'll find little to complain about out of the box.

Where the Haibike ALLMTN 4 excels

The ALLMTN 4 is at its best when you're tackling long, sustained climbs followed by rough, flowing descents - the kind of riding where range, power, and composure matter more than outright agility. If your weekends involve multi-hour loops with serious elevation gain, this bike will get you to the top without drama and still have enough battery left for the ride home. The Bosch motor's 85 newton-metres of torque and the 800Wh battery mean you can tackle steep, technical climbs that would leave lesser eMTBs gasping, and the motor's natural power delivery means you're not fighting against a jerky, on-off assist. It's the sort of bike that encourages you to explore further, ride longer, and take on routes you might have dismissed as too ambitious.

Descending, the ALLMTN 4 offers the kind of stability and control that suits open, fast trails and rough, natural terrain. The 160-millimetre fork and 150-millimetre rear suspension soak up the hits, the four-piston brakes give you confidence to scrub speed when you need to, and the mullet setup adds a touch of playfulness without sacrificing too much composure. It's not a bike that'll reward you for trying to thread tight, technical lines at speed - those longer chainstays and the overall heft mean it's happier when you're letting it run rather than constantly redirecting it. But if you're riding alpine singletrack, rough fire roads, or the kind of natural trails where momentum and stability trump tight, technical precision, the ALLMTN 4 will feel right at home.

Where it's less ideal is in tight, twisty terrain where you need to constantly change direction or in situations where weight becomes a liability - think bike parks with lots of tight switchbacks, or trails that demand constant manual-and-hop manoeuvres. The bike's heft and longer rear centre mean it's not as nimble as lighter, shorter-travel trail bikes, and if you're the sort of rider who loves to pop and play on every feature, you'll find the ALLMTN 4 a bit ponderous. It's also not the bike for riders who prioritise outright speed on smooth, groomed trails - there are lighter, more race-focused eMTBs that'll feel sharper and more responsive. But if your riding is defined by big days, rough trails, and the need for a bike that'll just keep going, the ALLMTN 4 delivers exactly what it promises.

Haibike ALLMTN 4 FAQs

What is the weight of the Haibike ALLMTN 4?
Haibike hasn't published an official weight figure for the ALLMTN 4, but it's widely acknowledged as a heavy bike - expect it to tip the scales well above 24 kilograms, likely closer to 25 or 26 kilograms depending on size and spec variations. That's the trade-off for the robust aluminium frame, large battery, and durable components.

What type of riding is the Haibike ALLMTN 4 best for?
The ALLMTN 4 is designed for all-mountain riding: long climbs, rough descents, and full-day adventures on challenging natural trails. It's ideal for riders who want a versatile eMTB that can handle steep technical climbs and sustained descents without feeling out of its depth. It's less suited to tight, technical terrain or riders who prioritise outright agility over stability and range.

What is the range of the Haibike ALLMTN 4 with the 800Wh battery?
Range depends heavily on terrain, rider weight, assist level, and riding style, but the 800Wh PowerTube battery is one of the largest available and should comfortably deliver 50 to 80 kilometres of riding in mixed conditions. If you're using lower assist modes on flatter terrain, you could push that further; aggressive climbing in turbo mode will drain it faster. Either way, it's built for long days out.

How does the Haibike ALLMTN 4 compare to other eMTBs in its price range?
The ALLMTN 4 offers strong value, with a focus on the Bosch motor and large battery rather than top-tier suspension or lightweight components. It's a solid all-rounder that prioritises capability and range over outright performance or weight savings, making it a good choice for riders who want a dependable, versatile machine without spending at the premium end of the market.

What are the recommended tyre pressures for the Haibike ALLMTN 4?
Tyre pressure is highly individual and depends on rider weight, terrain, and personal preference, but as a starting point, try around 22 to 25 psi in the front and 24 to 27 psi in the rear for a rider of average weight on mixed terrain. Adjust from there based on feel - lower pressures offer more grip and comfort, higher pressures reduce rolling resistance and pinch-flat risk.

Can I fit a water bottle to the Haibike ALLMTN 4?
Yes, though some riders have noted that Haibike's Modular Rail System can make bottle mounting a bit fiddly. There are mounting points on the frame, but you may need to experiment with bottle cage positioning or use a side-loading cage to avoid interference with the battery or frame design. It's doable, just not as straightforward as on some bikes.

What is the warranty on the Haibike ALLMTN 4?
Warranty terms vary by region and are typically handled through the original place of purchase, but Haibike generally offers a multi-year frame warranty and separate coverage for the motor and battery. Check with your local Haibike dealer or the official Haibike website for specific terms applicable to your region.

What size Haibike ALLMTN 4 should I get for my height?
Haibike offers the ALLMTN 4 in small, medium, large, and extra-large frames. As a rough guide, small suits riders around 157 to 169 centimetres, medium fits 167 to 178 centimetres, large covers 176 to 187 centimetres, and extra-large is for riders 185 to 197 centimetres. Always test-ride if possible, as personal preference for reach and standover height can vary.