We designed the Attain GTC SL so that it's as comfortable as it is fast. It's a bike made to break personal bests, whether that's on a long distance ride or a local hill climb. To achieve this blend of pace and plushness we selected the best off-the-shelf technology available - including Shimano's new Ultegra components, which borrow heavily from the range-topping Dura Ace groupset - and bolted it all to a cutting edge carbon frame. Fulcrum Racing 77 wheels and sleek, light and strong CUBE finishing components complete a package that's pure-bred racing snake, built to take on anything from a sportive to an epic hilly ride with your training buddies.
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 
The Attain GTC SL is built around the latest development of our carbon frame technology, complete with matching carbon fork plugged into an integrated headset. We also equipped the frame with æro Flex Stays - an important feature that adds a dose of welcome comfort to this race-bred machine, without in any way detracting from its ability to devour the miles at speed. Incredible stiffness is provided by the tapered head tube, joined in turn to the large cross-section down tube - which means assured, stable handling and instantaneous responses, even at high speed. To ensure the best drivetrain efficiency we selected PressFit for the crucial bottom bracket bearings. And, in keeping with the sleek Gran Turismo-inspired looks, we ran all the cables internally for longer-lasting clean shifts.
To protect our high-end aluminium frames from damage, they are built with the CUBE Frame Save System replaceable derailleur hanger. The mounting thread is in the hanger and not in the frame as usual. In case of a crash, this hanger can be easily and quickly replaced by a new one.
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.
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.
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.
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.
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.
On polished, brushed aluminium and all HPC frames, the logos and graphics are applied in multi-layer wet paint. We use this surface treatment technology mainly to save weight.
