REACTION GTC

Eagle

If you're looking for the ultimate in lightweight, race-bred hardtails, your search is over. New for 2017, the Reaction GTC One12 takes our acclaimed carbon chassis and pairs it with SRAM's ground-breaking X01 Eagle 1x12 transmission. Super-fast, clean shifts controlled from a single shifter leaves you to concentrate on getting the power down to the trail. The result? Unmatched speed and control.

application:
Alpencross XC/Tour
frame material:
Carbon
size:
27.5: 16", 18" // 29er: 15", 17", 19", 21", 23"
Art. No:
816450

Show all Specifications

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Frame

Frame: Our engineers threw everything they know about carbon frame technology at the Reaction GTC One12's chassis. That's why it's built with our stiffness-enhancing, weight-reducing Twin Mould technology and incorporates internal cable routing for cleaner looks and longer cable life. Our acclaimed Agile Ride Geometry brings the nimble handling of smaller wheeled bikes to our 27.5 and 29in range, while X12 dropouts keep everything tracking straight and true and the 27.2mm seatpost adds welcome comfort, even on long rides.

Bike classification category: 3

Components

Features: No two ways about it - SRAM's X01 Eagle transmission sets new standards for mountain bike shifting performance. With a single 34 tooth chainring up front and wide-ranging, closely spaced 12 speed 10-50 tooth cassette at the rear, the phenomenal gear range is on tap without frustrating, time consuming double shifts. RockShox's reliable Reba RL fork and SRAM Level hydraulic discs with a 180mm rotor at the front round out the main components. And we backed up all this phenomenal performance with a Fulcrum Red 44 wheelset shod with Schwalbe's light, grippy and fast accelerating Racing Ralph and Rocket Ron tyres.

frame GTC Twin Mold Monocoque Technology, ARG2, Tapered Headtube, PressFit BB, X12, Integrated Cable Routing
color grey´n´flashred
size 27.5: 16", 18" // 29er: 15", 17", 19", 21", 23"
fork Rock Shox Reba RL, Fast Black, Remote Lockout, QR15, Tapered, 100mm
headset FSA Orbit I-t, Integrated, Top 1 1/8", Bottom 1 1/2"
stem CUBE Performance Stem Pro, 31.8mm
handlebar CUBE Flat Race Bar Pro, 720mm
grips CUBE Race Grip, 1-Clamp
rear derailleur Sram XO1 Eagle, 12-Speed
shifters Sram XO1 Eagle Trigger
brake system Sram Level TL, Hydr. Disc Brake (180/160)
crankset Sram X1 Eagle 34T, 175mm
cassette Sram XG-1295, 10-50T
chain Sram PC-XO1 Eagle
wheelset Fulcrum Red 66, 28/28 Spokes, 15QR/X12
front tire Schwalbe Rocket Ron, Kevlar, 2.25, LiteSkin
rear tire Schwalbe Racing Ralph, Kevlar, 2.25, LiteSkin
saddle Selle Italia SC1
seat post CUBE Prolight, 27.2mm
seatclamp CUBE Varioclose, 31.8mm
weight 10.5 kg

Geometry

Geometries

Seat Tube Seat Tube Center-Center Top Tube Horizontal Seat Tube Angle Head Tube Angle Chain Stays Head Tube Wheelsbase BB-Height to Hub Reach Stack Wheelsize

Leisure

Tour

Endurance

Race

More models of this series

- - 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.
- - 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.
- - 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.
- - 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.
- - 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.
- - 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.
- - Twin Mold Technology
    
    The Twin Mold 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.
- - 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.