Reaction GTC

This is where the Formula 1 class of mountain bike starts: with the REACTION. From the stiff but light carbon frame to its high quality features, the REACTION GTC 2X is amongst the very best high performance hardtails. It's equally at home blasting trails as it is racing endurance events - in either 27.5 or 29 inch versions.

  • frame GTC Twin Mold Monocoque Technology, ARG2, Tapered Headtube, PressFit BB, X12, Integrated Cable Routing
  • color iridium´n´blue
  • Art. No 716100

Show all Specifications

Frame

The Reaction GTC twin mould frame offers everything you'll need from a top carbon frame. Stiffness-enhancing features like the large frame profile, tapered head tube, PressFit bottom bracket shell and X12 quick release axles at the rear combine to offer powerful drive, high steering precision and light weight. The 27.2mm seat post offers added comfort, while the Direct Mount derailleur system, front mech design and internal cable routing are all state-of-the-art. Agile Ride Geometry offers maximum riding fun.

Components

The Reaction GTC 2X with Manitou's 100mm travel M30 - kitted out here with stylish black legs - offers the perfect blend of comfort and control. Shimano BR M355 hydraulic disc brakes provide reliable, powerful braking. The Shimano XT 2x11 gear components - including XT Shadow Plus rear derailleur - are both versatile and reliable, while the Race Face Aeffect SL double chainset (36/26) gives this bike an air of exclusivity. The wheelset, featuring durable Deore hubs laced to Alex ZX24 rims, and a performance-orientated but comfortable CUBE saddle, round out this performance hardtail.

Geometry

  • CUBE geometry info
  • Info
  • 16"
  • 17"
  • 18"
  • 19"
  • 21"
  • 23"
  • frame GTC Twin Mold Monocoque Technology, ARG2, Tapered Headtube, PressFit BB, X12, Integrated Cable Routing
  • color iridium´n´blue
  • size 27.5: 16", 18" // 29er: 15", 17", 19", 21", 23"
  • fork Manitou M30 Air, Remote Lockout, 100mm
  • headset FSA Orbit I-t-R, Integrated, Top 1 1/8", Bottom 1 1/8"
  • stem CUBE Performance Stem Pro, 31.8mm
  • handlebar CUBE Flat Race Bar Pro, 720mm
  • grips CUBE Performance Grip
  • rear derailleur Shimano XT, RD-M8000-DGS, ShadowPlus, 11-Speed, Direct Mount
  • front derailleur Shimano XT, FD-M8020-D, Direct Mount,
  • shifters Shimano XT, SL-M8000, 2x11-Speed
  • brake system Shimano BR-M355, Hydr. Disc Brake (180/160)
  • crankset Race Face Æffect SL, 36x26T, 175mm
  • cassette Shimano XT CS-M8000, 11-40
  • chain KMC X11 L
  • rims CUBE ZX24
  • front hub Shimano Deore HB-M615, Centerlock
  • rear hub Shimano Deore FH-M618, Centerlock, 142x12mm
  • front tire Schwalbe Tough Tom, Active, 2.25
  • rear tire Schwalbe Rapid Rob, Active, 2.25
  • saddle CUBE Active 1.1
  • seat post CUBE Performance Post, 27.2mm
  • seatclamp CUBE Varioclose, 31.8mm
  • weight 11.7 kg

More models of this series

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      • ADAPTABLE X12 HANGER
      • Adaptable X12 Hanger

        We optimized our new dropout design based on the Syntace X12 through-axle system, enlarging the area of the frame where the hanger is mounted. We can now fit the longer Direct Mount hangers. Shifting precision and stiffness is therefore improved. With the new design it's also possible to swap the whole contact area of the axle with the hanger should the system be worn out.

  • Icon of CUBE technology AGILE RIDE GEOMETRYIcon of CUBE technology AGILE RIDE GEOMETRY
      • AGILE RIDE GEOMETRY
      • Agile Ride Geometry

        We ran innumerable tests to develop the Agile Ride Geometry in our series of big wheel bikes. We also added the 27.5in wheel size to the very well received portfolio. Three important details lead to the very agile character. Increased fork offsets let us achieve the same trail as our 26in bikes without having to steepen the head angle, thus maintaining generous toe clearance to the front wheel. Secondly we shortened the chain stays without compromising the seat angle. We invented a patented construction to mount the front derailleur to give us more tyre clearance while keeping a conventional seat angle, leading to a perfect riding position for every rider size. Last but not least we kept the BB height the same as on our 26in bikes. These measures lead to a natural riding position. Every mountain biker will feel immediately at home on a CUBE 29er or 27.5.

  • Icon of CUBE technology GRAN TURISMO COMPOSITEIcon of CUBE technology GRAN TURISMO COMPOSITE
      • GRAN TURISMO COMPOSITE
      • Gran Turismo Composite

        In designing the GTC carbon fiber frames, safety and comfort are the main factors. We use high modulus fibers for the parts which are stressed the most – the head tube, the seat tube top and the bottom bracket area. That is why the frame still offers flex and comfort resulting from the flexible tubes. Our special production process with inner and outer molding forms ensure that the minimum of required material is used, reducing overall weight even with complex frame designs. All GTC frames have of course passed DIN -Plus testing.

  • Icon of CUBE technology INTEGRATED CABLE ROUTINGIcon of CUBE technology INTEGRATED CABLE ROUTING
      • INTEGRATED CABLE ROUTING
      • Integrated Cable Routing

        Internally routed cables offer many advantages. Cables are protected from dirt for longer life, weight is saved thanks to the absence of external housing and the bike has a clean, sleek appearance.

  • Icon of CUBE technology PRESS FIT BBIcon of CUBE technology PRESS FIT BB
      • PRESS FIT BB
      • Press Fit BB

        With Press Fit bearings, the bottom bracket bearings are pressed directly into the frame and not screwed in as usual. This gives a wider bottom bracket shell and allows us to build a wider down tube and more broadly-spaced chainstays. Every millimetre of additional width gives a significant improvement in lateral stiffness.

  • Icon of CUBE technology TAPERED HEAD TUBEIcon of CUBE technology TAPERED HEAD TUBE
      • TAPERED HEAD TUBE
      • Tapered Steerer

        This steerer tube design is stiffer than a conventional straight steerer and yields a more secure ride feel even in difficult terrain. Minimal flex at the front of the frame means the greatest possible steering precision. With the larger steerer, the forks become more rigid. At the same time weight is saved due to the absence of bearing shells as the lower bearing is fully integrated into the head tube. On all of our CUBE carbon models the upper bearing shells are also directly in the frame, so that once more a few grams are saved and the energy transfer is very direct.

  • Icon of CUBE technology TWIN MOLD TECHNOLOGYIcon of CUBE technology TWIN MOLD TECHNOLOGY
      • TWIN MOLD TECHNOLOGY
      • Twin Mould Technology

        The Twin Mould technique uses re-usable cores during the lay-up process to ensure precision frame moulding. Special inserts guarantee optimum ply orientation during the production process to add extra strength at frame points subject to higher loads. This improves the safety of the product and delivers outstanding stiffness characteristics.

  • Icon of CUBE technology X12 THROUGH AXLEIcon of CUBE technology X12 THROUGH AXLE
      • X12 THROUGH AXLE
      • X12 Through Axle

        In this system, a cone is used to form a play-free connection. It is only necessary to tighten the axle from one side. The position of the wheel is done by an insert in the right-hand dropout which is secured by a bolt. The main advantages of the Syntace system are quick and simple changing of the wheel, reliable position of the brake disc and higher stiffness of the rear of the bike. This allows the assembly to be made lighter than a conventional through-axle.