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Reaction GTC Pro 29 Side-Swing Frame carbon'n'flashred
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Cube Reaction GTC Pro 29 Side-Swing Frame carbon'n'flashred buy online Picture 1
Cube Reaction GTC Pro 29 Side-Swing Frame carbon'n'flashred buy online Picture 2
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Reaction GTC Pro 29 Side-Swing Frame carbon'n'flashred
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Item no.: 20036763
  • Description

    Cube Reaction GTC Pro 29 Side-Swing Frame carbon'n'flashred

    An evening round with this carbon hardtail frame is just the first racing experience.
    The Reaction GTC Twin Mold frame has been redesigned from ground up and features everything a top-end carbon frame should have. The oversized tube cross sections, tapered head tube, PressFit bottom bracket and X12 rear thru axle all create a super efficient ride and precise handling. For additional comfort we have reduced the seat tube diameter to 27.2mm. Front and rear derailleur both use Direct Mount fittings, cables are routed internally and the post mount disc tabs are integrated into the chain stay. For an unparalleled ride on twisty single trails we have our modified Agile Ride Geometry.

    Shimano Side-Swing
    Designed specifically with modern trail bikes in mind, Shimano’s Side-Swing front derailleur provides 15mm of increased tire clearance, while new cable routing dramatically reduces shifting effort. Designed for larger wheels and longer travel, brings Shimano’s industry-leading front shifting to another level. 

    Product features

    • Material: Carbon GTC Twin Mold Monocoque Technology, ARG2, Tapered Headtube, PressFit BB, X12, Integrated Cable Routing
    • Seat post: 27.2mm
    • Seat clamp: 31.8mm
    • Front deraileur: Direct Mount Side-Swing (Only compatible with Direct Mount Side-Swing front deraileur!)
    • Headtube diameter: Tapered 1 1/8" - 1 1/2" integrated IS40 - IS52
    • Bottom bracket housing: Pressfit 92mm
    • Disc brake mount rear: Postmount
    • Wheel size: 29"
    • Recommended Fork Travel: 100mm
    • Dropout: Thru Axle X12 (12x142mm)
    • Derailleur Hanger: Only compatible with Shimano rear derailleur!


    •  carbon'n'flashred


    • 1230g (21")

    Scope of delivery

    • 1 Cube Reaction GTC Pro 29 Side-Swing Frame carbon'n'flashred
    Thru Axle (12x142mm) not included!


    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.
  • Reviews
    Cuadro 100% recomendable. Es muy ligero y resistente
    Great producto and fast shipping
    veri very nice frame
    Cuadro 100% recomendable, es muy ligero
    Great frame with great looks. But be careful when you buy your headset as this requires a special top bearing designed for cube which is smaller than regular bearing (it should be slimmer and narrower). Bike-discount should put this information that this works only with headset designed for cube and not any regular headset.
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