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What do you need in a great-handling, versatile hardtail?

What do you need in a great-handling, versatile hardtail?


2020 Cube Reaction Pro Hardtail Mountain Bike in Black

Star buys 30% off Selected Pedals With Every Bike When you add 2020 Cube Reaction Pro Hardtail Mountain Bike in Black to your basket today.
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With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or dispatch to you — it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for dispatch to you or collection via Click & Collect on the Undetermined
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2020 Cube Reaction Pro Hardtail Mountain Bike in Black Information

Season : 2020

Brand : Cube

Code : 312100

What do you need in a great-handling, versatile hardtail?

Well, it needs to be light and stiff for starters. That's why they began with mechanically formed, double-butted 6061 aluminium main frame tubes combined with a tapered head tube. Taken together they form a rigid backbone for the rest of the frame, carefully tailored with the Agile Ride Geometry to build a chassis that's responsive and accurate. Then they took a close look at the luggage carrier and mudguard mounting points, making them even neater than before so that you can add the accessories you need easily and, just as importantly, without ruining the clean lines of your bike. Details, see? They're what make a CUBE.

The clue's in the name: Reaction Pro. If you reckon that means they're really getting down to business with this bike, you'd be right. Our popular all-rounder hardtail retains all the features that have made the Reaction a go-to choice for keen riders, like a mechanically formed, double-butted 6061 frame with super-sleek luggage carrier and fender mounts for added versatility. Weekend warrior or weekday commuter (or both) - the Reaction Pro can handle it all. Shimano SLX and XT 1x12 transmission components bring slick reliability and an enormous gear range to our indomitable mid-ranger, putting any climb within easy reach with a system that's easier to use than ever. We fitted a RockShox Recon air fork at the front for added comfort and control, as well as easy adjustability to suit any rider. And with our Size Split system there's bound to be a Reaction Pro that will fit you, whatever your height. This is a bike that's crying out for some fast singletrack action, but just as happy to take you to work: truly, a bike for all reasons.

  • €1,180.04
  • $1,544.11
  • $1,510.81
  • $1,665.58
  • $1,187.86
  • CHF1,058.85
  • kr11,989.08
  • kr154,042.36
  • kr8,781.46
  • kr10,179.56
  • ¥123,359.89
  • All parts and accessories orders over £40 to Mainland UK addresses will be dispatched FREE via a tracked 48hr service (orders under £40 will incur a £4.50 delivery charge).

    Bikes over £350 are dispatched FREE via TNT with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).

    *Bikes with a value of under £350 will incur a delivery charge of £15
    Click & Collect Orders

    Please be aware Click & Collect orders may take some time to fulfil. We advise not to travel to your chosen store until you have been notified that your order is ready for collection.

    Spread the cost of your new bike, helmet, safety equipment and accessories paying via instalments being taken directly from your wage. The payments for the Cycle To Work scheme are taken out of your gross wage and your Tax & NI contributions are then worked out based on your new lower gross wage which is how you save money on your new bike and equipment.

    At the end of the time period specified with your Cycle To Work scheme you then have the option of buying your bike or to continuing to use it while you work for the company. If you decide to purchase the bike, the balance you owe will be based on a percentage of how much the bike was worth at the time you took out the Cycle To Work scheme.

    We know how eager you'll be to jump on your new bike and hit the dirt or tarmac, so we give you everything you need to get you set up quickly. For full instructions on how you're bike will arrive and what you'll need to do, visit our How Our Bikes Are Built page

    Easy Set-Up Instructions

    Have your brand spanking new bike ready to ride in less than 15 minutes with our easy to follow guide.

    Free Multi-Tool

    9 in 1 multi-tool to help you set up and maintain your bike.

    Free Pedal Spanner

    Attach your pedals with ease using our free tool. Please note pedals are not included with all bikes so please check the specification. You can shop our awesome range of pedals HERE

    Special Offer

    30% Off Selected Pedals With All Bikes

    Get 30% off a select range of pedals when you purchase a bike from Hargroves Cycles. Once you add the bike to cart you will be taken the pedal selection page to add your half-price pedals, discount will be applied at the checkout.

    Technical Information
    • Frame
      Aluminium Lite, AMF, ARG, Internal Cable Routing, Easy Mount Kickstand Ready, Tapered Headtube, Pressfit BB
    • Size
      Size Split: 27.5: 14", 16", 18" // 29: 17", 19", 21", 23"
    • Fork
      RockShox Recon Silver TK Air, 100mm, PopLoc
    • Headset
      CUBE FPH868P, Semi-Integrated
    • Stem
      CUBE Performance Stem Pro, 31.8mm
    • Handlebar
      CUBE Flat Race Bar, 720mm
    • Grips
      CUBE Performance Grip
    • Rear Derailleur
      Shimano XT RD-M8100-SGS, ShadowPlus, 12-Speed
    • Shifters
      Shimano SLX SL-M7100
    • Brake System
      Shimano BR-MT400, Hydr. Disc Brake (180/160)
    • Crankset
      Shimano XT FC-M8100, Boost, 32T, 175mm
    • Chain
      Shimano CN-M7100
    • Colour
    • Cassette
      Shimano SLX CS-M7100, 10-51T
    • Front Hub
      Shimano HB-M4050
    • Rear Hub
      Shimano FH-MT500, QR, Centerlock
    • Rims
      CUBE EX21, 32H, Disc, Tubeless Ready
    • Rear Tire
      Schwalbe Rapid Rob, Active, 2.25
    • Pedals
    • Saddle
      Natural Fit Venec Lite
    • Seat Post
      CUBE Performance Post, 27.2mm
    • Seatclamp
      CUBE Varioclose, 31.8mm
    • Front Tire
      Schwalbe Tough Tom, Active, 2.25
    • Weight
      12,9 kg
    Sizing Information
    Height Cube Reaction Size Guide
    4'8" / 143cm        
    4'9" / 145cm        
    4'10" / 148cm        
    4'11" / 150cm        
    5'0" / 152cm        
    5'1" / 155cm        
    5'2" / 158cm        
    5'3" / 160cm        
    5'4" / 163cm        
    5'5" / 165cm        
    5'6" / 168cm 17      
    5'7" / 170cm 17      
    5'8" / 173cm 17      
    5'9" / 175cm 17 19    
    5'10" / 178cm   19    
    5'11" / 180cm   19    
    6'0" / 183cm   19    
    6'1" / 185cm   19 21  
    6'2" / 188cm     21  
    6'3" / 191cm     21 23
    6'4" / 193cm       23
    6'5" / 196cm       23
    6'6" / 198cm        
    6'7" / 201cm        
    6'8" / 203cm        
    6'9" / 205cm        

    *Please note this is an approximate guide and where possible we advise trying the bike in-store

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