Haibike AllMtn 4 review

Where the AllMtn 4 fits

The clearest match is all-mountain riders who prefer Bosch support and want greater battery capacity than the Yamaha-powered AllMtn 3. This review is based on the Evans specification, manufacturer information and clearly identified independent coverage; it is not presented as a RideIn hands-on test.

Motor, controls and UK legality

Evans lists Bosch Performance Line CX mid-drive motor, 85 Nm, assistance to 25 km/h.. The controls are described as Bosch Purion 200..

The Bosch Performance Line CX is a high-output trail mid-drive with assistance applied through the bicycle's gears. Evans does not state the exact torque, firmware level or display in its short listing, so those details should be confirmed for the stocked bike rather than borrowed from another CX generation.

Compared with the AllMtn 3, the key distinction is ecosystem as much as raw output: Bosch diagnostics, controls and range-extender compatibility may matter more over years of ownership than a small headline torque difference.

For use as an electrically assisted pedal cycle in Great Britain, the maximum continuous rated motor power must not exceed 250W, assistance must cut out by 15.5mph and the pedals must be able to propel the bike. Check the label and delivered configuration rather than relying on a category name.

Battery, charging and realistic range

The listed battery is Bosch PowerTube 800 Wh battery.. No numerical range is stated in the accessible listing; route, rider, weather and assistance level materially affect distance

An 800Wh integrated battery provides 80Wh more nominal capacity than the AllMtn 3 and supports an optional range extender. That is a strong platform for ascent-heavy days, but no honest mileage figure can be derived without route elevation, rider effort and mode data.

More energy also means more battery mass and cost. Buyers should confirm whether the main pack is readily removable, which extender is compatible and whether the charger supplied matches the live Haibike configuration.

Use only the approved compatible charger, charge away from escape routes and stop using a battery that is damaged, swollen, leaking or unusually hot. Ask for the replacement-pack price and warranty conditions before the original battery becomes a problem.

Frame, fit and ride character

The frame specification is Aluminium full-suspension frame.. Fork and suspension details are RockShox Psylo Gold RC DebonAir fork, 160 mm; RockShox Deluxe Select R 205 x 65 mm rear shock, 150 mm rear travel.. The tyres are Continental Kryptotal-Fr Trail Endurance 60-622 front tyre; exact rear tyre specification is not separately stated in the indexed official specification..

The 160mm fork and 150mm rear travel put this firmly in versatile enduro-adjacent territory without reaching the Nduro's gravity specialisation. Haibike describes a frame tuned around weight saving, stiffness and comfort, with SRAM components completing the trail build.

There is no rigorous ride test of this exact current model in the evidence set. An older AllMtn 4 review found predictable climbing and flow-trail manners but carried a different generation of frame and equipment, so its handling criticism cannot be transferred directly.

Brakes, transmission and everyday equipment

The bike uses TRP Slate EVO HD-M807 four-piston hydraulic disc brakes with 203 mm rotors front and rear.. Transmission is SRAM NX Eagle 12-speed rear derailleur and Single Click shifter with SRAM SX Eagle chain.. Evans does not provide a complete equipment list in the accessible listing.

The AllMtn 4 is intended for mountain riding and brings the maintenance burden of full suspension, powerful brakes and a high-torque drivetrain. Its large battery and range-extender option suit remote loops, but recovery planning remains essential.

Evans' abbreviated specification omits several component and fit details. Before ordering, buyers should obtain the exact fork, shock, brakes, drivetrain, wheel setup, sizes, battery-removal method and total weight in writing.

What the published evidence tells us

Evans listed this build at £3,779 when RideIn checked it on 29 August 2026. Prices can differ by colour or size, and stock can change; a discount against a reference price does not by itself establish value.

The model's broad architecture is supported by Evans, Haibike's current all-mountain material and launch coverage. Available articles for similarly named earlier AllMtn 4 bikes are not evidence for this redesigned 800Wh version.

Current coverage is largely launch analysis or retailer commentary rather than a controlled long-term test. The review therefore stays close to confirmed system, battery and travel data and does not manufacture a ride consensus.

Advantages and disadvantages

The useful comparison is whether the complete build suits the regular route, storage and service plan. A premium motor cannot compensate for poor fit, while a modest component can be entirely sensible on the right type of bike.

• Advantage: Bosch Performance Line CX ecosystem
• Advantage: Large 800Wh battery
• Advantage: Optional range extender
• Advantage: Serious 160/150mm trail travel
• Disadvantage: Evans listing omits important component detail
• Disadvantage: No verified exact-model independent ride test
• Disadvantage: Large system likely carries weight and replacement cost
• Disadvantage: High maintenance compared with a hardtail

Buying checks and RideIn verdict

Confirm the exact product code, frame size, colour, battery capacity, assistance configuration and included equipment before paying. Ask which Evans branch or authorised dealer will handle electrical diagnosis, warranty labour and replacement components, then test the brakes, controls and fit before committing to regular use.

A promising high-capacity Bosch all-mountain platform, but the unusually sparse retail specification makes confirmation of the actual build essential before purchase.