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Cube Reaction Hybrid Performance 500 2021 Bosch

£2,099.00 Sold Out

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Who is this bike suitable for?

Our most popular hard tail mountain bike of 2020 is back with a new name! The 2021 Cube Reaction Hybrid Performance 500 is set to be one of the fastest selling bikes of the new model year. Picking up where the Cube Acid Hybrid left off in 2020, this new incarnation comes with the latest Generation 3 Performance motor and 500Wh battery. At under £2,000, this new 2021 Reaction Hybrid is the perfect introduction to electric mountain biking. 

Sadly, this popular bike is now sold out, but you can find the 2022 version here. 

Got this bike delivered about three weeks ago and I am really impressed. It’s quick has a great range and as I live half a mile up a farm track at the top of a steep hill getting home was always hard on a bike but this just flies up the hill. Great service from e-bikeshop too

New Features

With the newest Generation 3 Bosch Performance System and a 500Wh battery, The Cube Reaction Hybrid Performance 500 2021 is ready to take you further.

Equipped with Schwalbe's 2.35" Smart Sam tyres, these tyres have a continual band of central tread for excellent rolling speed, offering reliable grip on a mix of terrain whilst removing that laborious of off road tyres while pedalling when on tarmac.

The outer shoulders of the tyre have wider spacing with a more aggressive tread pattern to optimise off road grip during cornering, making them a solid all round tyre for a huge range of terrain.

Smart Sam tires on Cube Reaction Hybrid Performance 500 2021

Suntour's XCM ATB 100mm coil front fork helps to soak up the rough terrain and maintain firm tyre contact, keeping the steering precise. Featuring a quick release front axle, getting this bike in an out of the car or puncture repair a much quicker and easier job! 

Cube have spec'd the 2021 Reaction Hybrid Performance with Shimano's MT200 hydraulic disc brakes, giving great lever feel, modulation and stopping power. These are paired with 180mm rotors for consistent braking performance.

Shimano MT420 Brakes on Cube Reaction Hybrid Performance 500 2021

The MT200 brake system is effortlessly simple and aside from changing the brake pads from time to time you can fit & forget.

Cube have used their own factory EX23 tubeless ready wheels on the Reaction Hybrid Performance for 2021 with Shimano boost hubs and a 29" rim. These 30mm wide factory rims offer an excellent tire profile for a wider choice of tyres.

Cube have designed the Reaction Hybrid Performance as a fantastic value, budget conscious entry for new riders to the electric mountain bike market for 2021. Often only found on much higher specification bikes, it comes with totally internal routing for all cables, including the option to add cables for a stealth dropper post. 

The new 500Wh Bosch PowerTube battery is neatly integrated into the frame using Cube's Modular Battery System, which is designed to securely hold the battery in the underside of the downtube for minimal maintenance, ease of removal for charging while offering great impact and weather protection.

The key operated locking assembly is hidden underneath the impact resistant cover to avoid dirt ingress.

The 2021 Cube Reaction Hybrid Performance 500 eBike is equipped with the new Shimano M3100 9-speed groupset.

The 9-speed, 11-36t cassette offers a wide range ratio selection for both up and down hill to suit even the most adventurous of riders. 

Although an entry level groupset, it lends itself superbly to the Cube Reaction Performance and performs exceptionally well. 

Shimano Alivio on Cube Reaction Hybrid Performance 500 2021

The 2021 Cube Reaction Performance will be popular for any rider looking for an entry level XC trail bike, with ultra keen pricing and a very well thought out spec list. The 500Wh battery capacity offers excellent range whilst the Generation 3 Performance motor is a welcome boost for those looking for help back to the top of those long, flowing downhill sections!

2021 Bosch Performance Gen 3 System on Cube eBikes

Bosch Performance & Purion eBike System

The new 2021 Cube Reaction Performance 500 eBike features the Bosch Performance G3 crank drive motor, 500Wh PowerTube frame integrated battery and Purion control system. The 250w Performance system outputs 65Nm of torque and peaks at over 500w! It certainly packs a punch, offering up to 300% assistance in turbo mode.

Featuring 4 levels of assistance (and remember you can always turn the power off and ride it as a normal bike) ranging from 40 to 300% assistance, the new eMTB mode allows the user to set off in one assistance mode while allowing the clever Bosch eBike system to determine and deliver the level of assistance required based on user input to allow maximum support where its needed, but reign it in to save battery capacity/range where its not.

The Reaction Hybrid Performance features the latest 'PowerTube' Bosch 500Wh battery technology for 2021. Completely integrated into the frame, Cube have neatly designed it so it can be charged both on and off the bike. 

Sitting on the left of the bars, the 2021 Bosch Purion display is neat & compact. Riders can see important data like speed, distance and battery range and much more, on an easy to read and navigate LCD screen. 

Whats included?


This electric bike comes fully set-up by our workshop technicians. You can be sure that every aspect of the eBike has been dialled in for optimum performance. All our electric bikes arrive with a user manual, keys, charger & free follow up service within 3 months.

Warranty support on the Cube Reaction Performance 500 2021

Our electric bikes also include a 5yr warranty on the frame, 2yr warranty on all the electrics & 1yr warranty on the components. In the event of a problem, we handle all warranty claims in-house. We can also offer worldwide support for customers further afield using a laptop or PC connected to the internet, combined with our diagnostic equipment.

E-bikeshop is a UK Bosch Electric Bike Service Center and our in house workshop is now exclusively reserved for our own eBike customers. We also have parts / spares to hand should they be required.

*Range is dependant on many factors inc rider weight, wind, hills, terrain etc. For a better estimate, please use our range calculator. 

Pre-Order Terms: Reservations are final, deposits non-refundable & provided on a first come served, queued basis. Dates are predicted productions times and with all manufacturing dates can move back and forth. Specifications can change and images are artists impressions.

Free Electric Bike Insurance Cover

FREE 14 Days Electric Bike Cover

We've exclusively teamed up with Bikmo to offer 14 days free electric bike insurance when you purchase your new electric bike with

You'll be covered for eBike theft, accessories, crash damage, clothing/headgear, accidental damage, public liability and Bikmo will even cover the cost of getting you home as a result of damage or theft.

The perfect package to get you started with your new eBike without the need for any worry or hassle. Of course, you'll have the no obligation option to continue your insurance over after the initial period.

To get this exclusive special offer, simply tick the checkbox in the checkout. 

*You must meet all of the standard Bikmo eligibility criteria and understand the Bikmo locking requirements. You can find this info on the dedicated page here

Customer Reviews

Review submitted on previous model: Fantastic bike with great after sales service, road riding can be effortless or as hard as you like by adjusting power mode , up to 15mph the motor assists you away from the lights and up them big hills , off road I would like a bit more top end so am looking at fitting the off road dongle to unleash the full potential of this great entry level bike , highly recomend

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General Bike Specifications


Cube Aluminium Superlite Frame


SR Suntour XCM ATB Coil, 100mm


Shimano BR-MT200 hydraulic disc brakes, 180mm Rotors


Shimano SL-M3100-R, Rapidfire-Plus, 9-Speed

Rear Mech

Shimano RD-M3100-SGS, 9-Speed


Shimano CS-HG201, 11-32T




Cube EX23 Rims laced on Shimano Centerlock hubs


Schwalbe Smart Sam, K-Guard, 2.35"


Cube Rise Trail Bar, 720mm


Cube Performance Stem Pro, 31.8mm




Cube Performance Post, 30.9mm


Natural Fit Sequence


23.1 kg

Electric Bike Specifications


Bosch PowerTube Lithium Ionen 36 Volt, 500Wh, with BMS Management


Bosch Purion Display


Bosch Performance G3 36 Volt, Gen 3, 250 Watt. 50-300% Assist, 65Nm


30-140 miles of power assisted range, depending on terrain

Further Information


The most frequently asked questions on this eBike -

These questions relate to this bike. You can find a full F.A.Q on general eBike & website questions by clicking here.

What sizes is this bike available in?

The Cube Reaction Hybrid Performance 500 2021 is available in two frame formats - 

Crossbar - SOLD OUT.
Unisex/Trapeze - 38cm (15") & 43cm (17").

Is this bike in stock now?
The stock status is shown at the top of this page next to the price. If the stock level is shown as 'Pre-Order' this means it is a new model arriving soon, you can see an expected date at the top of each bike description.

Are there any colour options?

The Cube Reaction Hybrid Performance 500 2021 bike is held in stock in the colour shown. However we may be able to order alternative colours on request, subject to availability. 

Where can I find a geometry chart of this bike?
You can find the geometry chart of each bike by clicking on the 'Downloads' tab of each bike.

Where is this bike made?

Can I try the bike before I buy?
Yes of course, you can visit, we can talk you through your riding style and requirements and offer expert advice as to which model to select. We will be able to advise particular eBikes and talk them through in more detail. We also give you the opportunity to ride crank drive bikes so you can get a feel for them prior to purchase. 

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. If you like the bike, you have the option to take it away there and then with any accessories selected fitted and a full fitting session on the bike itself. We ask you to go for a short ride on the bike to make sure you are happy with the setup and also able to answer any operational questions you may have. 

If you cannot find the answer you are looking for, please do not hesitate to get in touch.
Remember you can find a full F.A.Q on general electric bike & website questions by clicking here.

The following links will open PDF files in a new tab -


Bosch eBike Purion Display Manual - Bosch Purion Display User Manual

Cube Bike Manual - Cube Bicycle Handbook Manual

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Finance Options

The prices below do not include any additional products, product options or shipping costs.
To pay by finance select the finance option during the checkout process.
Finance is only available for UK residents.

Finance Options
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The above values are best estimates, Final pricing will be confirmed on the V12 Retail Finance application. The UK Electric Bike Company Ltd is registered in England and Wales 08775019. Registered office: 12 Borelli Yard, Farnham, Surrey, GU9 7NU. The UK Electric Bike Company Ltd acts as a credit broker and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. The UK Electric Bike Company Ltd is authorised and regulated by the Financial Conduct Authority. Our firm reference number is 659966. Credit provided subject to age and status.