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Cube Electric Bikes

Cube Reaction Hybrid Race 800 2027

£3,499.00

Monthly from £47.79 Calculate
Save up to £1,679.52 with Cycle To Work
Out of stock - Unavailable to order.
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Spread the cost with V12 Finance

Click 'Find out more' above to calculate costs. Then simply add the bike and any products you wish to the cart and proceed through the checkout, where you can apply online and the process is automated.

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Save with a Cycle To Work Scheme

We deal with all major cycle to work scheme providers. You can save up to 48.25% on the purchase of your new electric bike. We don't add on any hidden charges or fees (even on sale items).

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Fast Electric Bike Delivery

Fast electric bike delivery subsidised to just £4.99 (for mainland UK). We also deliver to Highlands & Islands as well as the rest of the world. Simply add to cart, the shipping cost is calculated at checkout.

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Free 30 Day Insurance Cover

Every electric bike purchased from us benefits from free 30-day insurance cover from our partners at Bikmo. This covers both theft and damage. Simply opt for your free e-bike insurance cover at the cart.

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Our E-Bike Price Match Promise

Seen a bike advertised for less elsewhere, but want to purchase with all the benefits of buying from the electric bike experts? We'll do our best to match the price on a like-for-like service and product.

Learn more and apply for price match

Arrange a Viewing in Store

Want to view your dream bike, or maybe you just need a little more information or support? Why not visit our HQ where we have over 150+ electric bikes on display and one of our e-bike experts can assist.

Book in to visit us and learn more

Description

Meet the 2027 Cube Reaction Hybrid Race 800—a lightweight, agile electric bike built for riders who crave speed and performance on every ride. The premium aluminium frame balances stiffness and lightness, delivering sharp handling on both trails and tarmac.

Powered by Bosch’s 120Nm Performance Line CX motor and a high-capacity 800Wh battery, it provides powerful, responsive assistance that helps you conquer climbs and cover ground fast. Equipped with a complete Shimano XT groupset, you get the gold standard in crisp, precise shifting alongside incredibly reliable hydraulic braking power for absolute confidence in all conditions.

Featuring a premium FOX 34 AWL front suspension fork to effortlessly smooth out rough terrain and wide, grippy tyres for maximum traction, this bike is ready for fast-paced trail rides or daily commutes with sporty flair.

Speed, agility, and Bosch power combine seamlessly in the 2027 Reaction Hybrid Race 800—designed for riders who push every ride to the limit.

Full product details
  • Our 5 point review...

  • 1

    Superlight aluminium frame delivers outstanding strength, stiffness, and daily durability.

  • 2

    Fox 34 Float AWL fork provides 120mm plush, tunable air travel.

  • 3

    Premium Shimano XT 4-piston hydraulic brakes offer supreme stopping control.

  • 4

    Bosch CX Gen 5 motor generates explosive 120Nm torque drive.

  • 5

    High-density 800Wh battery provides up to 170 miles range.

  • E-Bike Key Specs
  • Battery

    Bosch 800Wh

  • Display

    Bosch Purion 200

  • Motor

    Bosch CX Gen 5

  • Range

    30-170 miles

Why choose E-Bikeshop?

Bosch 120Nm Power Upgrade

What is the Bosch 120Nm power upgrade?

The Bosch "Gen 5" Performance CX motor launched as a 85Nm motor. Bosch periodically release updates for their drive systems, normally for reliability and performance. Recently, Bosch announced the option for an extra 35Nm of torque.

Will this bike arrive with the upgrade installed?

This bike will come with the latest update of 120Nm torque output already installed. This update unlocks up to 600% maximum assistance in Turbo mode. You can adjust the power back down if required by using the Bosch eBike Flow App.

Does this bike have the new eMTB+ Mode?

The new eMTB+ riding mode delivers dynamic support at the highest level, blending the smooth control of eMTB mode with the full power of Race mode - offering up to 600% maximum support. It's available as part of this new firmware update.

Extended boost remains easy to modulate like in eMTB mode, while unleashing the full force of Race mode when needed. Up to 750 watts of power is delivered naturally and responsively, based on your pedal input. eMTB+ gives you the best of both worlds - combining agility, performance, and control for a truly natural riding experience. It is also possible to maintain peak power for longer, depending on riding conditions.

Features

Cube Reaction Hybrid Race 800 2027 Bosch CX Motor
Cube Reaction Hybrid Race 800 2027 Bosch Purion 200 Display

Closing in on the top...

The Reaction Hybrid Race 800 delivers elite hardtail performance at an unbeatable price point. By combining Bosch's top-tier Gen 5 CX motor and a massive 800Wh battery with premium Fox 34 AWL air suspension and full Shimano XT four-piston braking, it packs pro-level componentry into an accessible alloy frame.

Aimed at demanding trail riders, fitness enthusiasts, and long-distance backcountry adventurers, this hardtail offers exceptional value for riders who want top-tier stopping power, refined air suspension, and maximum range without full-suspension maintenance.

Cube Reaction Hybrid Race 800 2027 Fox 34 Float Forks
Cube Reaction Hybrid Race 800 2027 Shimano XT Disc Brakes

One bike, do-it-all performance..

The Cube Reaction Hybrid Race 800 2027 is engineered specifically for fast cross-country riding, rugged gravel fire roads, and ambitious alpine touring routes. Designed to master demanding off-road terrain, its 120mm Fox 34 AWL e-bike fork absorbs harsh trail chatter effortlessly, while the factory dropper post ensures immediate position adjustments on steep descents.

Whether tackling long backcountry bridleways, technical gravel climbs, or fast-flowing forest singletrack, this hardtail provides a stiff, responsive, and supremely comfortable riding platform built for serious multi-terrain exploration.

Cube Reaction Hybrid Race 800 2027 Shimano XT Gears

Brakes & Gears

Stopping power is supplied by high-end Shimano XT BR-M8120 four-piston hydraulic disc brakes operating on large 203mm rotors front and rear. Renowned for supreme lever modulation, rapid heat management, and immediate anchor force, this setup ensures fade-free consistency down long off-road descents.

Whether control-checking speed on steep loose gravel, navigating wet forest tracks, or bringing the bike to an immediate stop in traffic, riders benefit from crisp lever feedback, incredible stopping power, and total braking confidence across all weather conditions.

Drivetrain performance is managed by a smooth 12-speed Shimano system featuring a wide 10-51T cassette and heavy-duty KMC e12 chain. Driven by an XT shifter, the premium Shimano XT ShadowPlus rear derailleur delivers instantaneous, surgical gear changes across the entire cassette.

This broad gear spread ensures you can always maintain an optimal pedalling cadence, whether grinding up sheer vertical forest climbs or putting down maximum power along fast, flowing fire roads during long-distance mountain rides.

Cube Reaction Hybrid Race 800 2027 Shimano XT M8120 Disc Brakes

Shimano XT BR-M8120 four-piston hydraulic disc brakes with dual 203mm rotors deliver instantaneous, fade-free stopping power, precise lever feedback, and total anchor control down steep, loose off-road gravel descents.

Cube Reaction Hybrid Race 800 2027 Shimano XT M8200 Rear Mech

The Shimano XT 12-speed ShadowPlus rear derailleur offers fast, surgical gear changes, using an integrated clutch mechanism to eliminate chain slap and maintain smooth power delivery across rough ground.

Cube Reaction Hybrid Race 800 2027 Shimano XT M8210 Shifter

The Shimano XT 12-speed shifter features direct-attach mounting, delivering crisp, ergonomic gear selection while effectively preventing accidental double-shifting under heavy motor torque to preserve drivetrain components.

Cube Reaction Hybrid Race 800 2027 Schwalbe Smart Sam Tyres

Wheels & Tyres

The ACID SLX 30 wheelset features a durable, tubeless-ready rim construction engineered specifically to handle rugged trail riding and high-speed off-road touring. Built with Boost hub spacing (15x110mm front, 12x148mm rear), these wheels offer excellent lateral stiffness and efficient power transfer under heavy motor drive.

The wide 30mm internal rim width supports high-volume tyres perfectly, allowing lower inflation pressures for enhanced riding comfort, increased cornering traction, and reduced rolling resistance over rough, rocky surfaces.

Schwalbe Smart Sam 2.6-inch tyres deliver an ideal balance of off-road traction and low on-road rolling resistance across varied surfaces. Featuring a compact central tread pattern alongside grippy outer shoulder studs, they roll smoothly on tarmac while biting predictably into loose gravel, dry forest tracks, and mud.

The high-volume casing absorbs trail chatter and small impacts, providing a comfortable ride, added puncture protection, and confident cornering stability across diverse everyday environments on every single trip.

Cube Reaction Hybrid Race 800 2027 Dropper Seat Post

The bottom line..

This premium hardtail e-MTB is tailored for ambitious trail cyclists and endurance explorers who demand pro-tier braking and suspension without sacrificing range. It caters brilliantly to fitness riders and backcountry adventurers looking to conquer long distance routes and steep elevation gains in comfort.

With its balanced geometry, plush Fox air fork, factory dropper post, and huge 800Wh battery, it empowers riders to push their technical limits, tackle steep hills comfortably, and explore further than ever before.

Pairing Cube's advanced Superlight aluminium frame design with Bosch's industry-leading motor technology gives riders complete peace of mind and incredible long-term value. Cube's rigorous manufacturing standards guarantee exceptional frame strength and structural durability, while Bosch drive systems are globally celebrated for quiet operation, bulletproof reliability, and extensive main-dealer support.

This powerful synergy delivers a future-proof electric bike backed by easily accessible spare parts, simple routine servicing, and an outstanding cost-to-performance ratio that competing brands struggle to equal.

Power

Cube Reaction Hybrid Race 800 2027 Bosch Performance CX Gen 5 Motor

Bosch Performance CX & Purion 200 eBike System

Powered by the flagship Bosch Performance Line CX Generation 5 drive unit, this e-MTB produces a massive 120Nm of torque for effortless climbing across extreme off-road gradients.

Integrated seamlessly into the frame, the 800Wh Bosch PowerTube battery features advanced BMS management, offering an impressive power-assisted range of 30 to 170 miles depending on conditions.

The handlebar-mounted Bosch Purion 200 display delivers a bright colour screen showing real-time speed, battery percentage, and assist modes at a glance.

The entire system connects via Bluetooth to the Bosch eBike Flow app, enabling riders to adjust motor support settings, track detailed ride statistics, perform wireless software updates, and utilise smart navigation features for a fully connected, hassle-free riding experience.

Cube Reaction Hybrid Race 800 2027 Bosch Purion 200 Display

The Bosch Purion 200 display features a clear, intuitive screen showing essential ride data and motor settings. Its user-friendly interface allows easy control, enhancing visibility, comfort, and confidence while cycling.

Cube Reaction Hybrid Race 800 2027 Bosch Performance CX Gen 5 Motor

The Bosch Performance Line CX Gen 5 motor delivers 120 Nm of torque for smooth, powerful, and responsive pedal assistance. Its compact, lightweight design ensures precise handling, effortless climbs, and confident trail performance.

Cube Reaction Hybrid Race 800 2027 Bosch PowerTube 800Wh Battery

The Bosch 800 Wh PowerTube battery provides long-lasting energy, reliable performance, and balanced weight distribution. Its integrated design ensures durability and low maintenance, enabling riders to confidently tackle long rides and varied terrain.

Cube Reaction Hybrid Race 800 2027 What's Included?

What's included

Your new Cube electric bike gets a full set-up by our workshop technicians ahead of delivery.

Your Cube eBike will arrive with a user manual, keys (where applicable), charger & free follow up service (at our service center) within 3 months of delivery.

Cube electric bikes include a 6yr (Alloy) or 3yr (Carbon) warranty on the frame, 2yr warranty on all the electrics and 1yr warranty on the components. In the event of a problem, we handle all warranty claims via our dedicated support in-house.

E-Bikeshop is a Cube UK eBike Service Center and our in-house workshop is exclusively reserved for our own eBike customers. We have time to support the eBikes we sell.

Specifications

General Bike Specifications

Frame Cube Aluminium Superlight Alloy

Forks Fox 34 Float AWL, 2-Position Sweep-Adjust, Tapered, 15x110mm, 120mm (S: 100mm)

Brakes Shimano XT BR-M8120, Hydr. Disc Brakes, 203mm Rotors

Shifters Shimano Deore XT SL-M8210-IR, 12-Speed

Rear Mech Shimano XT RD-M8200-SGS, ShadowPlus, 12-Speed

Cassette Shimano Deore CS-M6200, 10-51T, 12-Speed

Chain KMC e12, 12-Speed

Wheelset ACID SLX 30, 15x110mm/12x148mm, Tubeless Ready

Tyres Schwalbe Smart Sam, Active, 2.6" (27.5: S / 29: M, L, XL, XXL)

Handlebars CUBE Rise Trail Bar 35

Stem CUBE Performance Stem E-MTB 35, FPI-Link

Headset ACROS AZF-1034, ICR

Seatpost CUBE Dropper Post, 31.6mm

Saddle ACID Sequence 160 Pro Bubble Foam

Weight 24.4 Kg

Electric Bike Specifications

Battery Bosch PowerTube 800Wh, with BMS Management

Display Bosch Purion 200 Display

Motor Bosch Drive Unit Performance CX Gen 5 120Nm 250W

Range 30-170 miles of power assisted range, depending on terrain

Downloads

FAQs


Yes we offer a range of finance purchase options. These vary from 0% short term, right through to longer term loans on a % APR.


To see the estimated monthly installments on any bike, simply click the 'Find out more' button towards the top of this page. You can select the deposit amount and loan period to quickly calculate the monthly cost before proceeding to place your order.


Finance is automatically processed online at the checkout when selected, you can learn more on our dedicated E-Bike finance page.



You can see what sizes this model is available in at the top of this page. Sizes are listed in centimeters and also specified S, M, L etc.


Some models have more available sizes than others. Whilst some bikes are only available in a 'one size fits all'.



Next to the size options at the top of this page, click 'Launch Size Assistant'. Enter your inside leg measurement along with your arm length and height (in cm). Our special size calculator will show you what size you need to order. These are displayed in S, M & L etc to correspond with the size options.


Note: You may be a particular size on one model and a different size on another model. Please use the size calculator on each model page as sizes can vary between manufacturers and models.



You can view the stock status of any model/variant by selecting it at the top of this page. It will show you one of three stock status:


In Stock: In stock now and available to order for immediate delivery
Pre-Order: Available to pre-order with estimated date of arrival shown
Sold Out / Out of Stock: The model is completely sold out in this variant and no longer available to order


If this bike is showing as Out of Stock in your size, it's worth checking if there's colour options as the same model and size may be available in a different colour. Failing that, we also offer a handy link to 'View similar bikes in this size'.



Yes, you may wish to collect your new electric bike from our HQ based in Farnham, Surrey. If so please select 'Collect in store' at the checkout.


We will then prepare your new eBike and be in touch to book a suitable collection day/time.


One of our experts is on hand to help you set up the correct position on your new eBike along with answering any questions that you may have.



If colour options are available, these will show below the size options at the top of this page. It's best to choose your size first and then click on each colour option to check it's availability in that size.


Not all of our electric bikes have colour options available.



At e-bikeshop we work by appointment only, so we can talk to each customer on an individual basis to give the best advice possible.


We can talk you through your requirements, riding style and offer expert advice as to which model to select.


We generally keep over 150 eBikes built in our showroom. Note: Some models shown as 'Pre-Order' may not be in the showroom to view as the bike is still due from the supplier. We can also give you the opportunity to ride a similar electric bike so you can get a feel for how electric bikes work prior to purchase. It’s important to note we don’t have every single bike, in all sizes, colours and variants etc available for test ride.
 
Should you wish to purchase, we give the option to take it away that same day (subject to stock) with any extras fitted and a handover session on the bike itself by one of our eBike experts.



Delivery for UK 'In Stock' items ordered before 1pm should be expected for delivery the next business day (this excludes weekends and public holidays).


You can learn more on our E-Bike delivery page. International buyers can view international delivery times.


For delivery on 'Pre-Order' items, the estimated arrival date is shown at the point of order. On arrival our team will make contact to settle any outstanding balance. Once settled in full, we'll then proceed to dispatch your new eBike without delay.



Yes, we exclusively offer 30 days free insurance on all of our new electric bike purchases. This is for UK orders only. Simply select to opt-in to the 30 days free insurance in the cart.


This not only covers for theft, but also covers you for public liability, breakdown, accessories, accidental damage and returning home cover. You can learn more on the dedicated electric bike insurance page.


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