CUBE Reaction Hybrid Performance 600 Electric Mountain Bike review

Where the Reaction Hybrid Performance 600 fits

The clearest match is leisure riders and mixed-surface commuters who want smooth Bosch assistance and sensible range without paying for CX torque or an 800Wh battery. Compare the complete specification and available independent coverage before choosing a size or variant.

Motor, controls and UK legality

The motor is Bosch Drive Unit Performance Line 75 Nm.. The controls are Bosch Purion 200 with Integrated Display.

The 75Nm Bosch Performance Line is quieter and less forceful than the CX units in the ONE and Pro builds, but it remains a capable mid-drive for rolling roads, forest tracks and moderate hills. Its more progressive response may be easier for less experienced riders to manage on loose ground.

Shimano CUES nine-speed gearing spans 11–46T, giving the motor useful climbing leverage with fewer ratios than the ten- and twelve-speed alternatives. It is built for reliable everyday changes rather than rapid race-style shifting.

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 600. No numerical range is stated in the accessible listing; route, rider, weather and assistance level materially affect distance

A 600Wh PowerTube is a substantial everyday battery and may be a better weight-and-cost fit than 800Wh for riders doing shorter loops. It has 25% less nominal capacity than an 800Wh pack, so genuinely long or mountainous days need more conservative mode use.

The two-amp charger suits overnight charging but will not rapidly restore a depleted pack during a short stop. No universal mileage should be inferred: surface, elevation, motor mode, temperature and rider mass determine the result.

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 Superlite, Gravity Casting Technology, Agile Ride Geometry, Boost148, Fully Integrated Battery, Advanced Internal Cable Routing, 1.5 Headtube, Kickstand/Fender/Carrier Mounting Points. Fork and suspension details are SR Suntour XCM34 NLO Coil, Tapered, 15x110mm, 120mm (27.5: 100mm). The tyres are Schwalbe Smart Sam, Active, 2.6.

A 120mm Suntour XCM34 coil fork and 2.6-inch Smart Sam tyres deliver stable, forgiving manners on rough lanes and non-technical trails. The fork offers less precise setup and control than the air units higher in the range.

Shimano MT200 hydraulic discs and 180mm rotors are appropriate for leisure speeds but have limited heat and power reserve for repeated steep descending. The bike’s hardtail efficiency and mounting options make it more convincing as a versatile adventure hybrid than an aggressive e-MTB.

Brakes, transmission and everyday equipment

The bike uses Shimano BR-MT200, Hydr. Disc Brake (180/180). Transmission is Shimano Cues SL-U4010- Rapidfire-Plus; Shimano Cues RD-U4000-GS, 9-Speed; Shimano Cues CS-LG300, 11-46T. The equipment information is CUBE Performance Post, 31.6mm.

The frame accepts CUBE-compatible carrier, mudguard and kickstand equipment, and X-Connect simplifies adding an appropriate front light. The standard specification does not include those accessories, so commuting readiness depends on the buyer’s build plan.

Size Split changes the wheel and fork format on smaller frames, broadening fit but making size-specific verification important. The integrated battery creates a clean appearance, while Bosch’s dealer network supports diagnostics that cannot be performed like ordinary cycle maintenance.

What the published evidence tells us

The recorded price for this build is £2,299. Prices can differ by colour or size, and stock can change; a discount against a reference price does not by itself establish value.

The 75Nm motor, 600Wh battery and nine-speed CUES details are consistent across the seller and CUBE’s official exact page. This prevents the common mistake of describing every Reaction as a CX-powered 800Wh bike.

Retailer range comparisons support its value-focused role. Its confirmed hardware provides the clearest distinction from the ONE and Pro, so compare those component differences directly.

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: Smooth, approachable Bosch Performance assistance
• Advantage: Sensible 600Wh capacity
• Advantage: Durable wide-range CUES gearing
• Advantage: Versatile frame mounts and wide tyres
• Disadvantage: Less climbing reserve than CX models
• Disadvantage: Basic coil fork
• Disadvantage: Entry-level brakes
• Disadvantage: Accessories are not included

Buying checks and RideIn verdict

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

The Performance 600 is the rational Reaction for riders whose terrain does not demand CX power. Its money is concentrated in a sound Bosch system and useful chassis; spend more on the Pro only when stronger brakes, an air fork and a dropper will be used.