Scott Spark RC World Cup Bike

The Scott Spark RC World Cup Bike is Scott’s top-of-lineup XC race machine — the same platform that Nino Schurter and the SCOTT-SRAM MTB Racing team have ridden to World Cup podiums. At $8,499.99, it’s built without compromise: Carbon HMX frame, fully electronic suspension, wireless drivetrain, and an integrated carbon cockpit. Every specification is aimed at one outcome — going faster on race day.

The Spark RC’s frame starts with Carbon HMX, Scott’s highest-grade carbon fiber, processed using their Evo-Lap technology. This isn’t a blanket description of “carbon construction” — Evo-Lap uses finite element analysis software to optimize the carbon ply orientation and surface area across every tube in the frame, concentrating stiffness exactly where power transfer demands it while allowing measured flex where the trail and rider require it. The result is a frame that feels planted and responsive under hard pedaling without the harshness that pure-stiffness XC designs can introduce on technical terrain.

The suspension is built around Scott’s Flex Pivot single-pivot design — a layout engineered to minimize unsprung mass and keep pedaling efficiency high through the entire travel arc. But what elevates the World Cup above every other Spark RC is Flight Attendant: the RockShox electronic suspension system fitted to both the SID Ultimate fork and the SIDLuxe Ultimate rear shock. Flight Attendant uses real-time sensors to detect whether you’re climbing, descending, or on flat terrain and automatically adjusts fork and shock compression to match. On climbs, it firms both ends for maximum efficiency. On descents, it opens up for full 120mm travel. On mixed terrain, it finds the middle. The system runs autonomously, but the rider retains full manual authority via TwinLoc — the handlebar remote that switches between lockout, traction control, and full descend modes in an instant when the conditions demand it.

Specs at a Glance

• Frame: Carbon HMX with Evo-Lap technology, Flex Pivot, integrated rear shock
• Suspension Travel: 120mm front and rear
• Fork: RockShox SID Ultimate Flight Attendant
• Rear Shock: RockShox SIDLuxe Ultimate Flight Attendant
• Drivetrain: SRAM X0 Eagle AXS 1x12-speed
• Chainring / Cassette: 34T / 10–52
• Brakes: SRAM Motive Silver 4-piston hydraulic disc, 180mm front / 160mm rear
• Wheels: Syncros Silverton 1.0S-30, 29”
• Tires: Maxxis Rekon Race 29x2.4, tubeless-ready
• Dropper Post: Syncros Duncan 1.5XC, 100mm travel
• Cockpit: Syncros Fraser iC SL XC Carbon integrated bar/stem
• Saddle: Syncros Belcarra V1.0, carbon rails
• Head Angle: 67.2° (adjustable ±0.6° without cable/brake work)
• Sizes: S, M, L, XL
• Colors: Carbon Black, Hush Purple

Design Benefits

1. Flight Attendant Electronic Suspension: Both the RockShox SID Ultimate fork and SIDLuxe Ultimate rear shock run Flight Attendant — RockShox’s automatic electronic suspension platform. Sensors in the system detect terrain and pedaling input in real time and adjust compression damping on both ends simultaneously. The practical result is a bike that’s efficiently locked down when you’re grinding up a fireroad and fully open when you point it downhill, with no hand off the bar required. TwinLoc provides manual override for the moments when you want rider control over algorithm.
2. Carbon HMX with Evo-Lap Technology: HMX is Scott’s premium-grade carbon — higher modulus, higher strength, lower weight than standard carbon formulations. Evo-Lap’s FEA-driven layup process means the carbon fiber is placed precisely where it does the most structural work, not distributed uniformly. The frame is lighter and stiffer than it would be with a conventional layup, without sacrificing the durability and impact resistance that XC racing demands.
3. SRAM X0 Eagle AXS Electronic Drivetrain: The 12-speed X0 Eagle AXS runs on SRAM’s wireless electronic platform — precise, repeatable shifts under load with no cable stretch, no housing to maintain, and no mechanical adjustment over time. The 34T front chainring paired with a 10–52 rear cassette gives a range that covers race-pace XC efforts on both steep climbs and fast flats. The UDH (Universal Derailleur Hanger) interface provides a replaceable hanger without requiring frame-specific spares.
4. Syncros Fraser iC SL XC Carbon Integrated Cockpit: The Fraser iC SL bar and stem are a single carbon unit — no clamp interface between them, no stack height from a traditional stem face plate. The integrated design saves weight, reduces the number of potential failure points, and cleans up the cockpit for a more precise front-end feel. Internal cable routing runs through the bar and stem directly into the frame for a clean, aero line.
5. Syncros Duncan Dropper Post Included: At 100mm of travel, the Duncan 1.5XC dropper is spec’d from the factory — not as an afterthought, but as part of Scott’s race-ready build philosophy. Modern XC courses are technical enough that a dropper post is now a competitive tool, not a luxury. Having it integrated into the World Cup build from the start means cable routing is clean, the spec is dialed, and there’s nothing to upgrade out of the box.

Final Take

The Scott Spark RC World Cup is the benchmark for what an XC race bike should be in 2025. The combination of Carbon HMX construction, Flight Attendant electronic suspension on both ends, SRAM X0 Eagle AXS wireless drivetrain, and a full Syncros carbon cockpit puts together a build that leaves essentially nothing on the table. If you’re racing cross-country at a serious level — or simply want the most capable and technologically advanced XC full-suspension platform available — the Spark RC World Cup is where that conversation ends.