Details
Spec
Older models
Size guide
Shipping & returns
Cycle Scheme
Finance£3499
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New 2027
The Cube Reaction Hybrid SLX 800 2026 is a high-spec hardtail eMTB aimed at riders who want a versatile bike for trail riding, fitness, commuting, and general off-road exploration.
Key Specifications
Motor: Bosch Performance Line CX (85 Nm torque)
Battery: Bosch PowerTube 800 Wh
Frame: Cube Aluminium Superlite hardtail frame
Fork: RockShox suspension fork
Drivetrain: Shimano XT/SLX mix
Brakes: Hydraulic disc brakes
Tyres: Wide tubeless-ready tyres
What Stands Out
Bosch CX + 800Wh Battery
The Bosch CX motor remains one of the strongest and most refined eMTB systems available. The 800Wh battery is particularly attractive if:
You regularly ride 30–60+ miles.
You tackle significant elevation.
You want to avoid frequent charging.
For many riders, the larger battery is the biggest upgrade over previous-generation 625Wh and 750Wh models.
Hardtail Efficiency
Because it's a hardtail rather than a full-suspension bike:
More efficient on roads, gravel, and smoother trails.
Lower maintenance costs.
Lighter and generally better value for money.
Less comfortable on very rough or rocky descents.
Shimano XT/SLX Drivetrain
The XT/SLX combination is often considered a sweet spot:
Excellent reliability.
Precise shifting under load.
Easier and cheaper to maintain than premium electronic systems.
Best For
? Trail centres and forest tracks
? Gravel and mixed-surface adventures
? Long-distance e-bike rides
? Daily commuting with occasional off-road use
? Riders wanting maximum range
.
Overall Assessment
The Cube Reaction Hybrid SLX 800 2026 looks like one of the strongest hardtail eMTB options in its class. The combination of the Bosch CX motor, massive 800Wh battery, quality Shimano XT/SLX transmission, and RockShox suspension makes it especially appealing for riders who prioritize range, reliability, and versatility over full-suspension comfort.
Specification| Availability | Out of stock, please call for availability |
|---|---|
| BIKE year | 2026 |
| Category | Mountain Bike |
| Colour | Gauze-Grey Ice-Blue |
| Condition | Brand new |
| battery | Bosch PowerTube 800 Charger: Bosch 4A |
| cassette | Shimano XT CS-M8100, 10-51T |
| chainring | Guide: Reverse Flip-Guide E-Chain Guide, Direct Mount, I-Plate Crankset c-ring sizes: 38T |
| chainset | KMC e12 |
| crankset | ACID MTB Hybrid Pro, 38T |
| display | Bosch Kiox 500 |
| extras | Remote: Bosch LED Remote |
| fork | Fox 34 Float AWL, 2-Position Sweep-Adjust RAIL Damper, Tapered, 15x110mm, E-Bike Optimized, 120mm 27.5: 100mm |
| frame | Aluminium Superlite, Gravity Casting Technology, Agile Ride Geometry, Boost148, Fully Integrated Battery, Advanced Internal Cable Routing, 1.5 Headtube, Kickstand/Fender/Carrier Mounting Points |
| grips | ACID Hybrid Perform |
| handlebar | CUBE Rise Trail Bar 35 |
| headset | ACROS AZF-1034, ICR Integrated Cable Routing, Top Zero-Stack 1 1/2-inch ZS 56mm, Bottom Zero-Stack 1 1/2-inch ZS 56mm, X-Connect Interface |
| motor | Bosch Drive Unit Performance Line CX max. 100Nm BDU38 |
| pedal | ACID PP Trekking |
| rear derailleur | Shimano XT RD-M8100-SGS, ShadowPlus, 12-Speed |
| saddle | ACID Sequence 160 |
| seatpost | CUBE Dropper Post, Handlebar Lever, Internal Cable Routing, 31.6mm Dropper: yes |
| shifters | Shimano XT SL-M8100-IR, 12-Speed |
| stem | CUBE Performance Stem E-MTB 35, FPI-Link |
| tyres | Schwalbe Smart Sam, Performance, Kevlar, 2.6 |
| wheelset | Newmen Performance 30 base/strong, 28/32 Spokes, 15x110mm / 12x148mm, Tubeless Ready |
| MPN | 108610L |
| PNUM | 21075 |
| PRICE | £3499.00 |
Reviews| Feel | Quality | Ride | Value | ||
|---|---|---|---|---|---|
| Mr Will Moule |  | | | |
10 |
| Previous model reviewed. Absolutely love the One77. Stable, aggressive, and insanely confidence-inspiring on descents, yet climbs better than expected. Powerful motor, great range, and bombproof components. A true no-compromise e-enduro beast. | |||||
| Mr Jason Gaunt | |  | |  |
9.3 |
| Previous model reviewed. Cube make good bikes, I purchased this after purchasing two cube adult bikes last year. At last my son should e able to keep up in the forest now. | |||||
| Mr Ben Wallace-Hadrill | | | | |
10 |
| Previous model reviewed. Really pleased with the bike and service I received | |||||
| Mr Paul Loraine | | | | |
10 |
| Previous model reviewed. Very helpful over the phone. Always cheerful and willing to help. I also appreciated the phone call to say bike is on its way. | |||||
| Mr Martyn Montgomery |  | | | |
7.8 |
| Previous model reviewed. Excellent service very friendly staff. | |||||
| Mr Darren Spencer | | | | |
10 |
| Feel | 10 |
| Quality | 9 |
| Ride | 10 |
| Value | 10 |
| Overall rating | 9.5 |
Click here to view finance options.
Call 029 2052 9955 or email us and this bike could be yours today!
Looking for older models of the Cube Reaction Hybrid SLX 800?
Size guide
Mountain bike sizing for this model, with the available sizes shown alongside the guide.
Start with rider height, then adjust for reach, standover and riding style.
| Rider height | Frame size suggested | ||
|---|---|---|---|
| (ft - in) | (cm) | Size | (in) |
| 4' 10" - 5' 2" | 148 - 158 | XS | 13 - 14 |
| 5' 2" - 5' 6" | 158 - 168 | S | 15 - 16 |
| 5' 6" - 5' 10" | 168 - 178 | M | 17 - 18 |
| 5' 10" - 6' 1" | 178 - 185 | L | 19 - 20 |
| 6' 1" - 6' 4" | 185 - 193 | XL | 21 - 22 |
| 6' 4" - 6' 6" | 193 - 198 | XXL | 23 - 24 |
Due to the size and weight of most bikes, a charge would apply to shipping remote regions, offshore UK and Ireland.
The courier will require a signature for your delivery. If no one is available to sign for your goods, the courier will leave a card with instruction of where you can collect it.
Working days are Monday to Friday unless otherwise stated. There may be circumstances beyond our control which cause delay and in such circumstances we will endeavour to deliver the goods as soon as they arrive from manufacturers.
To view our Shipping & Returns Policy, click here.
Our flexible finance options mean you can purchase this product with a minimal deposit (or call us and arrange a deposit that suits you). Before applying for finance, please ensure you have read the information on eligability.
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