SCOTT Scale RC 900 World Cup Bike

Boost is a hub and drivetrain standard developed by SRAM. Boost is built around a wider rear and front hub and enables stiffer wheels due to a wider spoke bracing angle. Boost 148 rear hubs move each flange of the rear hub three millimeters wider.

Boost is designed as a complete system so drivetrain performance isn’t compromised. Even though Boost pushes the cogs three millimeters outboard, the crankarm Q-Factor remains the same as the Boost system’s crankset utilizes front chainrings that sit a corresponding 3mm outward to ensure the required chainline. Boost cranks can onlybe used when paired with a 148mm hub. On the front the hub spacing is increased by 10mm to 110mm. Increased wheel stiffness and greater clearance for bigger tires are the main advantages of Boost technology. On our bikes, we wanted to go beyond the basics and reap all the benefits of this innovation by optimizing frame design and geometry.The 3 mm outboard chain ring adds clearance in the chain stay area that allows a substantial increase of the chain stay tube cross-section. Correspondingly,the stiffness in this part of the frame improves. Also, with a wider range of positions for the rear wheel, the frame geometry can be adjusted. We can shorten the chainstays for more agile handling.

Our integrated chain guide was developed in collaboration with the SCOTT SRAM MTB Racing Team. 

The idea behind was to create a reliable component that helps to avoid dropping chains but that was light, versatile and integrated in the design of the frame. The new Spark chain guide weighs just 23 grams and is easy to assemble thanks to the smart assembly system and can accommodate chain rings from 30 to 36 teeth.

With the proper selection of materials, eighty percent of the work to create a frame is done. But the remaining twenty percent requires most of our efforts. For this reason, our choice of the most advanced carbon fibers in the market is followed by intensive use of specific tools, like FEA(finite element analysis) software, to map out the carbon lay-up.

With FEA software, we can simulate different forces on a virtual model of the frame and adjust the frame construction accordingly. FEA software enables us to create complete virtual prototypes incorporating all the physical phenomena that exist in real-world environments.

With our Evo-Lap technology we model the frame to optimize the surfacearea, simulate tube structures with different ply orientations, observethe results of using diff erent configurations, and test the stress distribution in different areas of the frame. Thanks to this extensive computer modeling, we’ve optimized the carbon layers in all the parts of our frame. When the parts were bonded together in the first prototypes, the result was a super light and compact frame without a sacrifice in the stiffness, comfort or impact resistance. The entire range benefitted from our EvoLap technology.

Racers will attest that ride comfort is an essential element of performance. During the development of a hardtail frame, it is essential to distinguish the areas of the frame optimized for comfort from the ones more related to the stiffness.

Many brands in the market offer different solutions to improve those aspects but most of them are limited only to a component or a specific area of the frame. With SCOTT SDS2 technology we go beyond this approach, reinventing the concept of comfort on hardtail frames without adding additional parts or sacrificing pedaling stiffness.To reach our goal, we ran analysis and testing to optimize different shapes of the tubes on the whole frame along with accurate alignment of the carbon fibers. The result on the new Scale frame is specific, controlled flex in areas that increase rider comfort and guarantee optimal absorption of vibrations not only on the saddle but also when the riders standing up on the pedals.

This approach to comfort must not only accommodate the lightest weight attainable, but also maintain stiffness for the sake of pedal efficiency. Further, superior rigidity of the frame ensures accurate handling in the steeper sections. In the new Scale we’ve considered all these aspects to avoid any undesired flexion that would affect performances either climbing or descending .

On the Scale, Spark and Genius we’ve redesigned all the parts that can give us significant benefits in terms of performance and functionality. On the previous model the support of the dropout was a bulky additional part molded to the carbon chain stay. The new dropouts are designed to be integrated on the thru-axle system thanks to a hollow tubular design that allows a simple and light weight structure. Available for SRAM and Shimano DM derailleurs, this dropout increases the stiffnessand avoids damage to the frame in case of impacts on the rear derailleur.

On the Scale, Spark and Genius, to provide a clean look and a functional solution for all the different control cable standards on the market, cable routing is fully internal and designed for full length cable housing. Routing the cables internally omits bulky external hardware and looks cleaner. The cables can endure a longer lifetime as they are protected within the frame. The entry points are machined alloy removable inserts that come along with the frame and can be chosen according to the setup of the bike. Assembling an electronic group or a dropper post will not be a problem and the look will always be clean-cut.

While we already use the proven HMF composite fiber on all our composite high-end bike models, we have improved upon conventional HMF material. This new fiber, which is produced exclusively for SCOTT, offers 20% more stiffness and is employed on all the areas that need additional rigidity. This new material also allows us to reduce weight and improve riding characteristics. NET stands for Naked External Tubeset, where the frame sheds its exterior cosmetic layer, which saves even more weight.

Working together with DT Swiss, we completely revisited the shape of the thru-axle lever to make it more ergonomic and to perfectly fit to ourframe. Additionally we introduce a new multifunctional tool integrated on the inner part of the thru-axle itself. This 25T torx wrench is easy to reach and ready to be used for quick adjustments on the trails.