Anyone who ever dreamed of a pro cross-country racing career has dreamed of the Spark RC 900 Pro. The 1x-specific Spark RC frame design and lightweight, hyper-efficient TwinLoc Suspension System are made for pure, on-course performance. The Pro build includes a Sram Eagle drivetrain and Level brakes, and is made to go the distance with premium Syncros components completing this race-worthy package in style.
KEY FEATURES
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Spark RC Carbon HMX Frame
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FOX 32 SC Perf. Elite 100mm Fork
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FOX Nude, TwinLoc Remote
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Sram X01-GX Eagle 12 Speed
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Sram Level TL Disc Brakes
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Syncros XR2.0 TR Wheels
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Maxxis Aspen Kevlar Tires
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Syncros Carbon Parts
29 Wheels
Improved roll-over is the most noticeable attribute when it comes to 29” wheels. The big wheels are great for rolling over nasty roots and rocky sections, essentially making it easier to ride these conditions. Improved traction is also a key factor with the increased wheel diameter compared to 27.5” wheels as tire contact to the ground is larger.
• Best Roll-Over Performance
• Carries Momentum
• Maximum Traction surface
• Best stability on easy trails
• Lowest suspension stress
• Great for larger frame sizes
• Increase stability on long curve
ASYMMETRIC DESIGN
The Spark down tube shock and linkage are clearly asymmetric, when looking from the top of the bike. Carbon fibres achieve their full potential when used in smooth straight lines. Off setting the shock slightly to the left hand side of the bike gives a clean and continuous structure from the down tube through the shock mount to the main pivot.
EVO-LAP TECHNOLOGY
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 Scotts efforts. For this reason, their 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, they 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 Scott's 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, they’ve optimized the carbon layers in all the parts of the 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.
BOOST TECHNOLOGY
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 Scott bikes, they 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. Scott can shorten the chainstays for more agile handling.
TRUNNION CONSTRUCTION
Scott have adopted the new Metric shock sizing standards with a Trunnion mount. Since the shock body now extends between the two lower mounting bolts, our suspension partners have more design space. This means the shock has more stroke for the same eye to eye length. Stroke on the 165mm eye to eye shock has increased from 38mm to 40/45mm.The Trunnion standard also offers structural gains. The shorter shock enables Scott to build a very compact frame and shock package, which integrates tightly to the seat tube. They managed to have a very tiny yet stiff linkage-lighter than ever. Thanks to the Trunnion mount construction, stand over height on the new Spark is very low. Scott are still able to realize a super compact full suspension frame and provide the ability to mount both a small and big water bottle.
The Spark family maintains the 165mm eye-to-eye shock length of the previous Spark 900 (our shortest shock), but realises up to 7mm more shock stroke. All Spark RC and most Spark and Spark Plus bikes utilize the FOX Nude shock, specially made for SCOTT:
-165mm Metric Trunnion shock
-40mm (100mm travel RC Spark line-up) vs. 38mm (old Spark)
-45mm (120mm travel Spark line-up)
By turning the Trunnion shock upside-down, they can fully integrate it into the frame which results in several benefits.Since the Trunnion mount is the same width as the down tube and mainpivot, Scott can have a very clean frame design in this critical area. The lack of tight transitions and small details allows for an efficient, continuous carbon structure. Carbon material added to reinforce the shock mount also stiffens the connection between the down tube, main pivot and bottom bracket, a key stiffness path.
The flipped shock also lowers the frame’s center of gravity helping to give a more planted feel when riding. Unsprung mass is reduced since it is the lighter part of the shock, connected to the linkage, not the heavier body which must move during an impact – the suspension system can react faster.Our TwinLoc remote cable can be routed cleanly into the down tube.