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Cube Reaction GTC 29 Mountain Bike 2016 - Hardtail MTB
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
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 give 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.
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
All GTC models are built using this complex manufacturing process. In this process we can eliminate possibly dangerous folding by constant control of carbon fibers during the curing process. By using fixed internal forms at junction points the quantity of resin is considerably reduced and the fibers bonded more tightly together. The result is increased product safety and improved stiffness-to-weight values.
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.
The Cube Reaction GTC 29 2016 Features are:
Frame: GTC Twin Mold Monocoque Technology, ARG2, Tapered Headtube, PressFit BB, X12, Integrated Cable Routing
Fork: Manitou M30 Air, Remote Lockout, 100mm
Headset: FSA Orbit I-t-R, Integrated, Top 1 1/8", Bottom 1 1/8"
Bars: CUBE Flat Race Bar Pro, 720mm
Stem: CUBE Performance Stem Pro, 31.8mm
Shifters: Shimano XT, SL-M8000, 2x11-Speed, 11-Speed
Front Mech: Shimano XT, FD-M8020-D, Direct Mount, Side Swing
Rear Mech: Shimano XT, RD-M8000-DGS, ShadowPlus, Direct Mount, 11-Speed
Chainset: Race Face Aeffect SL, 36x26T, 175mm
Front Brake: Shimano BR-M355, Hydr. Disc Brake 180mm
Rear Brake: Shimano BR-M355, Hydr. Disc Brake 160mm
Rims: CUBE ZX24
Front Hub: Shimano Deore HB-M615
Rear Hub: Shimano Deore FH-M618 142x12mm
Tyres: Schwalbe Tough Tom, Active, 2.25 Front Schwalbe Rapid Rob, Active, 2.25 Rear
Seatpost: Cube Performance Post, 27.2mm
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