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Electric Bikes

Cube Reaction Hybrid Race 500

  • Frame type


  • Bosch 250w CX Performance drive

  • Bosch PowerPack battery, 500Wh, lithium ion

  • Bosch PURION Multifunctional Display.
  • The new trend in comfortable, grippy 2.6 inch tyres

  • Shimano hydraulic disc brakes and XT 11 speed gears

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Now in stock!

Nothing combines ease of use and fun quite as well as an e-MTB - and few e-MTBs can match the CUBE Reaction Hybrid Race for value and performance. Blending all our engineers' accumulated experience in a beautifully crafted frame designed around the requirements of the Bosch drive unit, we've hand picked the components to get the best out of your off-road riding. From the RockShox Silver fork to the 11 speed Shimano transmission, hydraulic disc brakes and comfortable, grippy 2.6 inch tyres, this is a bike that will squeeze the maximum fun out of any trail. Guaranteed to keep you smiling, mile after mile.

Frame Pooling all the knowledge they've gained from years of working with Bosch's superb drive system, our engineers came up with a way to integrate both motor and battery into a gravity cast bottom bracket and down tube. The result isn't just surprisingly elegant, it's also precisely the right blend of light, strong and stiff - so you can be assured of optimum power transfer and the best handling experience. Our Agile Ride Geometry is the icing on the cake, giving this e-MTB a stable but lively ride character that you're sure to love. We didn't forget practicalities, either - the battery can be charged without removing it from the frame, and internally routed cables keep grit and moisture away for longer lasting, more precise gear shifts.



The Performance Line CX raises eBiking to a new level experience with a noticeable boost in performance, a maximum torque of up to 75 newton meters and sustained power into the high cadence range for sporty acceleration, even when riding over alpine terrain. Bosch Performance CX drive complies with all road regulations and its compact design has the additional advantage in that it is attached to the bottom bracket, giving the bike an optimal center of gravity. The drive unit is equipped with an electronic control system with three sensors for force, cadence and speed, ensuring optimal coordination. It takes 1000 sensor measurements per second.


The battery is impressively easy to use. Thanks to an integrated locking system, the battery can be removed and re-attached just like any “plug &play” device and can be completely charged in its own charger in a record time of only 3 hours. 

Weight 2.5kg



High-tech on the handlebars. The new 
Purion 2-in-1 on-board computer has all the basic information at the click of a thumb: The new Purion on-board computer operates with maximum efficiency and precision. The display clearly shows the most important information. The small control panel permits the rider to control any integrated areas on the bike. The Assistance Level and the light function can be controlled and selected. Furthermore, the small screen displays the current battery status, the coverage in kilometers and includes all the functions of a conventional bicycle computer as well as service interval, the display always reminds you when the eBike is due for a service.


Ratings and Reviews

My first eBike: Cube Reaction Hybrid Race

by from Basingstoke on

I’d tried a few eBikes out before, including an older model Cube. The Cube, with its crank mounted 75NM motor impressed me the most. I ordered one through 50Cycles, the customer service and communication was excellent (thank you Chloe)

The bike, a Cube Reaction Hybrid Race with the 75 NM motor and 500wh battery was delivered on time and in perfect condition. Attaching the pedals and aligning the handlebars were simple tasks. The bike is a dream, easy to pedal with the motor off, it’s ratio is set to make pedalling really easy even up hills. The fun starts when the engine is switched on! It has four power modes for day to day use; 1. ECO: minimum assistance maximum range. When used with the gears riding was relatively easy but not fast. 2. TOUR: my usual setting, enough assistance to get me to 16 mph with no fuss and upmost hills at about 10 mph. 3 EMTB: more assistance for riding up hills at a faster pace. 4. TURBO: crazy assistance mode with loads of acceleration to 16 mph, even up steep hills - this mode leaves me grinning all day!

Pedalling above 15.5 mph needs more effort but I could still hit 20 mph on the flat and 30 mph downhill. Around town in TURBO mode, I could leave most cars standing when pulling away in a low gear. This bike seems to work best when I used the gears, the feeling of power is greatly increased in low gears. I’m 60 years old and weigh 17 stone, I was truly amazed at the ease of pedalling and speeds achieved. It’s still winter so I’ve only done shorter rides (20 miles on tracks and minor roads - bad roads! Potholes and floods) the ride is comfortable, but I’m still going to buy a gel saddle. The battery indicator still shows 3 bars of power left out of 5 bars after 20 miles, with lots of use of EMTB and TURBO to get me up hills quickly.

Awesome bike and great service from 50 Cycles - I’m going to be grinning for weeks. Thank you!

Technical Specifications

frame    Aluminium Superlite, Gravity Casting, ARG, Double Butted, Disc Only, Tapered Headtube, Internal Cable Routing
drive unit    Bosch Drive Unit Performance CX (75Nm) Cruise (250Watt)
battery    Bosch PowerPack 500
display    Bosch Purion
fork    RockShox Judy Silver TK Air, Tapered, 15x110mm,100mm, Lockout
headset    FSA Orbit 1.5B ZS, Top Zero-Stack 1 1/8" (OD 44mm), Bottom Zero-Stack 1 1/2" (OD 56mm)
stem    CUBE Performance Stem Pro, 31.8mm
handlebars    Cube Rise Trail Bar Pro, 720mm
grips    CUBE Performance Grip
rear derailleur    Shimano XT RD-M8000-DGS, ShadowPlus, 11-Speed
shifters    Shimano SLX SL-M7000
brake system    Shimano BR-M315, Hydr. Disc Brake (180/180)
crankset    FSA CK-745, 170mm, 15T
chain    KMC X11
colour    black´n´blue
cassette    Shimano SLX CS-M7000, 11-46T
front hub    Shimano Deore HB-M6010-B, 15QR, Boost, Centerlock
rear hub    Shimano Deore FH-M6000, Centerlock
rims    CUBE EX30, 32H, Disc, Tubeless Ready
tyres    Schwalbe Smart Sam, Active, 2.60
saddle    Selle Royal MTB
seat post    CUBE Performance Post, 30.9mm
seat clamp    CUBE Varioclose, 34.9mm
weight  22.6kgs
colour Black and Blue



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