CUBE Reaction Hybrid Race 750 Electric Mountain Bike

RRP £3,499.00 Save 15%

Need help choosing an electric bike?

Our Kingston electric bike store team are here to help you. Email [email protected] or call 0333 006 8833

Check to see if we have it in stock - just select your colour and size.

Reaction Hybrid Race 750 Electric Mountain Bike
Email Me When Back in Stock

We're sorry, but unfortunately, we're unable to ship this item to your country

Product ID: 1676390

Why buy your bike from Sigma Sports?

sigma sports expert advice
Expert Advice

Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.

sigma sports cycle schemes
Cycle to Work Schemes

Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.

Bike Delivery Options

Choose between Free Bike Delivery - to your home or place of work - or our new Premium Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.

laka insurance
Laka Insurance

We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.

CUBE Reaction Hybrid Pro 750 Electric Mountain Bike

The CUBE Reaction Hybrid Pro 750 Electric Mountain Bike features a fourth-generation, Smart System-equipped Bosch CX drive unit and high-capacity 750Wh PowerTube battery, giving you the boost and range you need to explore further. So neat is the frame's design, you'll barely notice the addition, which will get you quicker to the top of the mountain, ready for more fun on the way down.

Agile Ride Geometry delivers confidence-inspiring handling, as you'd expect. The S frame comes with 27.5" wheels, and the others with 29ers, so everyone can find their ideal Reaction Hybrid. And, with internally routed cables, maintenance is reduced so that you can just enjoy the ride.

Incorporating Shimano's slick shifting and wide ranging XT 1x12-speed gears, it's your ticket to riding further, higher and more often than ever. There's an air-sprung X-Fusion 120mm travel suspension fork with lockout, giving easy adjustability and a smoother, more controlled ride. Wide, grippy 2.6in Schwalbe tyres combined with powerful four-piston hydraulic disc brakes ensure you're always in complete control.


  • Light but strong Superlite aluminium frame
  • X-Fusion MIG32 Air 120mm travel fork
  • Fast but comfortable CUBE Agile Ride geometry
  • Bosch Drive Unit Performance CX Generation 4 (85Nm) Cruise (250Watt), Smart System motor
  • Bosch PowerTube 750Wh battery
  • Shimano XT 1x12-speed drivetrain and hydraulic disc brakes
  • CUBE EX30 tubeless-ready wheels and Schwalbe Smart Sam 2.6" tyres
  • Integrated mounting points for mudguards, kickstand and luggage rack

Battery Specification

  • Battery Power: 750Wh
  • Battery Weight: 4.3kg
  • Charging time: 50% charge approximately 2.3 hours / 100% charge approximately 6 hours
  • Range: 107km (mode dependent)

Technical Specification

Frame CUBE Aluminium Superlite, Gravity Casting Technology, Agile Ride Geometry, 1.5 Headtube, Boost 148, full integrated battery, advanced internal cable routing, kickstand/mudguard/carrier mounting points
Fork X-Fusion MIG32 Air, Tapered, 15x110mm, 120mm, Lockout
Headset ACROS AZF-1035, ICR (Integrated Cable Routing), BlockLock 120°, Top Zero-Stack 1 1/2" (ZS 56mm), Bottom Zero-Stack 1 1/2" (ZS 56mm)
Stem CUBE Performance E-MTB, 31.8mm
Handlebar CUBE Rise Trail Bar Pro, 740mm
Grips ACID React Pro
Front Brake Shimano BR-MT420, hydraulic disc / 203mm rotor
Rear Brake Shimano BR-MT420, hydraulic disc / 203mm rotor
Brake Levers Shimano
Rear Derailleur Shimano XT RD-M8100-SGS, ShadowPlus, 12-speed
Shift Levers Shimano Deore SL-M6100-IR, Direct Attach, Rapidfire-Plus
Chain Shimano CN-M6100
Cassette Shimano Deore CS-M6100, 10-51T
Crankset ACID E-Crank, 38T, 175mm
Front Wheel CUBE EX30, 32H, Disc, tubeless-ready / Shimano HB-MT400-B, 15mm, Boost, Center Lock hub
Rear Wheel CUBE EX30, 32H, Disc, tubeless-ready / Shimano FH-MT410-B, 12mm, Boost, Center Lock hub
Front Tyre Schwalbe Smart Sam, Active, 2.6"
Rear Tyre Schwalbe Smart Sam, Active, 2.6"
Saddle Natural Fit Sequence
Seatpost CUBE Performance, 30.9mm
Manufacturer Claimed Weight 24.1kg (small)
Electric Assisted Speed Limit 15.5mph / 25kph
Range 107km (mode dependent)
Motor Bosch Drive Unit Performance CX Generation 4 (85Nm) Cruise (250Watt), Smart System
Ui/Remote Bosch Kiox
Battery Bosch PowerTube 750Wh
Charger Bosch 4A

Built, Checked, Tuned and Tested

All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.

All bikes collected from our shop, are built, tested and ready to ride.

Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.

If you require any assistance please contact our Customer Care team.

CUBE Reaction Hybrid Race 750 Electric Mountain Bike Sizing

Unable to display Reviews due to Privacy Settings.

Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".

Unable to display Q&A due to Privacy Settings.

Adjust your Cookie Preferences to Opt-in "YES" to "Functional Cookies".

Close menu