The Specialized Epic 9 has a lot to live up to. Its predecessor, the Epic 8, delivered 12 XCO and XCC wins across elite UCI World Cup and World Championship racing, putting it among the most successful bikes on the circuit.
It was not the outright leader, though. Canyon’s rival platform, the Lux, claimed more victories over the same period. Even so, the Epic’s consistency across both formats kept it firmly at the sharp end of modern cross-country racing.
It also impressed beyond the results sheet. The Specialized Epic 8 tested strongly with the BikeRadar team and proved popular with riders, thanks to its balance of efficiency and control on increasingly technical courses.
So where do you go from there? Specialized says the answer lies in cutting weight, reducing friction and refining the kinematics, while preserving the traits that made the Epic 8 so effective in the first place.
Lightest frame yet
The headline figure is a claimed 1,589g frame weight for a size medium (Carbon/White colour, with shock, seat collar, axle and all hardware, including water bottle bolts). Specialized says that makes it the lightest full-suspension XC race frame available.
Specialized claims that’s a 129g saving over its nearest competitor. For the weight-conscious, that's a big draw. This reduction was achieved through full-frame FEA (Finite Element Analysis) optimisation, along with what it describes as hundreds of small refinements across the chassis. Or, as Specialized puts it, “No lazy grams allowed”.
Compared to the outgoing Specialized Epic 8, weight has been trimmed in every major area. The front triangle sees the biggest drop, with a claimed 110g saving. There’s no internal frame storage now, which no doubt contributes.
Smaller savings come from the rear triangle. The seat tube uses size-specific layups, with tuned wall thickness and shaping to optimise weight, strength and stiffness. A new rocker also helps trim weight.
Weight savings matter, but not at the expense of ride quality, durability or stiffness. Specialized is keen to stress this is a “no compromise” weight reduction, claiming to have improved not only frame weight, but also efficiency and capability. That's something we would need to verify on the trail.
As a reference point, a complete S Works Epic 9 Ultralight LTD build is claimed to weigh only 8.5kg. That puts it firmly at the sharp end of the XC category.
Lower-friction suspension aims to boost speed
The more interesting changes have been made to the suspension.
Travel remains at 120mm front and rear, matching the more technical direction modern XC racing has taken. What has changed is how that travel is delivered.
Specialized claims an 11 per cent reduction in suspension friction, thanks to updates across the frame, pivots and linkage. Less friction should mean better sensitivity and improved traction.
A new top-tube mounted link now drives the shock, replacing the previous rocker and yoke layout and aligning it with designs seen on bikes such as the Canyon Lux and Giant Anthem.
The design looks to be borrowed from Specialized's own hardtail-killing Epic World Cup bike, with the mini rocker link likely increasing torsional stiffness in the rear end, while saving weight.
With this new linkage layout, Specialized has also reduced the leverage rate around the sag point to increase pedalling support, making the suspension firmer in the initial portion of its travel.
Beyond that point, the curve is said to mirror the Epic 8, maintaining its balance of absorption through what Specialized calls the 'bump phase', along with its bottom-out resistance.
In simple terms, it's intended to feel firmer under power, but active when the terrain demands it.
Three-position shock damping
The rear shock retains Specialized’s three-position damping system: Wide Open, Magic Middle and Sprint-On-Lock.
Wide Open is exactly what it sounds like. It leaves the shock fully active, maximising traction and control on rough descents, and technical sections where grip and composure matter more than outright efficiency.
Sprint-On-Lock sits at the other end of the spectrum. It firms up the shock heavily to limit movement, making it best suited to smooth climbs, sprints and transitions where you want as much of your effort going straight into forward motion as possible.
Magic Middle sits between the two, and remains the default setting for most riding. It uses a firmer low-speed compression tune to resist suspension movement from pedalling inputs, helping keep the bike stable and efficient under power.
Push past that initial resistance, though, and the damping becomes more forgiving. Once bump forces exceed typical pedalling loads, the shock opens up and enables more travel to be used, helping the rear wheel track the ground rather than skip across it.
In effect, it creates a threshold between pedalling forces and trail impacts. Below that threshold, the bike feels firm and efficient. Above it, the suspension becomes active and compliant.
It will be interesting to see how the same shock tune interacts with the new kinematics, which already improve pedalling performance. Will the combination make the initial travel feel too firm before falling away into a softer mid stroke?
Geometry refinements
The Epic 9’s geometry changes are minimal, which is no surprise.
The Specialized Epic 8 pushed XC geometry forward, with a slacker head angle, longer reach and more capable stance. Rather than rewriting that, Specialized has kept the same overall layout and made smaller adjustments based on rider feedback and fit data.
However, the Epic 9 does not include an XS size in its geometry chart, with sizes running from S to XL.
The head angle sits at 65.9 degrees in the low setting, with a flip chip offering a slightly steeper 66.3-degree option.
Reach numbers remain similar, with the S and M bikes at 420mm and 450mm in the low setting. The L and XL gain an extra 5mm, extending to 480mm and 505mm respectively.
To balance this, stack heights increase across the range, with the M, L and XL measuring 604mm, 618mm and 645mm. The S frame drops slightly to 594mm, compensating for the lack of an XS option.
The chainstay length now scales by size, with S and M frames at 435mm, the L at 438mm and the XL at 442mm.
The bottom bracket has also been raised by 4mm in the low setting to improve clearance on technical terrain.
They're subtle changes, but ones Specialized says should deliver “technical terrain capability alongside fast and efficient climbing and acceleration performance”.
Efficiency remains the core focus
Specialized is positioning the Epic 9 as its most efficient XC bike to date – not just in terms of weight or stiffness, but as a complete system.
That includes kinematics, damping, chassis behaviour and rider position. The aim is to keep power going into forward motion, rather than being lost through suspension movement, poor traction or rider fatigue.
That aligns with what we are seeing across the category. Courses are rougher, speeds are higher and riders need bikes that can carry momentum, not just accelerate on smooth ground.
Specialized Epic 9 models and pricing
Specialized did not include any pricing in its press packs for the new Epic 9 bikes.
Specialized Epic 9 S-Works Ultralight LTD
- Frame: S-Works FACT 12m carbon, 120mm, SWAT Box 2.0 storage
- Shock: RockShox SIDLuxe Ultimate
- Fork: RockShox SID SL Ultimate, 110mm travel
- Wheels/tyres: Roval Control World Cup, carbon rims (28.5mm internal), DT Swiss ceramic bearings, carbon spokes with titanium end pieces, Specialized Air Trak, Flex Lite casing, T5/T7 compound, 29x2.35in (front and rear)
- Drivetrain: SRAM XX SL Eagle AXS Transmission, Quarq XX SL Eagle power meter
- Brakes: Trickstuff Piccola 2-piston, 160mm rotors
- Seatpost/saddle: Bike Yoke Divine SL dropper/S-Works Power with Mirror saddle
- Handlebar/stem: Roval Control SL integrated cockpit, 760mm, 60mm/70mm stem
- Weight: 8.66kg (claimed, medium frame)
Specialized S-Works Epic 9
- Frame: S-Works FACT 12m carbon, 120mm, SWAT Box 2.0 storage
- Shock: RockShox SIDLuxe Ultimate Flight Attendant
- Fork: RockShox SID Ultimate Flight Attendant, 120mm travel
- Wheels/tyres: Roval Control World Cup, carbon rims (28.5mm internal), DT Swiss ceramic bearings, carbon spokes with titanium end pieces, Specialized Fast Trak (front) / Air Trak (rear), Flex Lite casing, T5/T7 compound, 29x2.35in
- Drivetrain: SRAM XX SL Eagle AXS Transmission, Quarq XX SL Eagle power meter
- Brakes: SRAM Motive Ultimate, 180/160mm rotors
- Seatpost/saddle: RockShox Reverb AXS/S-Works Power EVO Mirror saddle
- Handlebar/stem: Roval Control SL integrated cockpit, 760mm, 60mm/70mm stem
- Weight: 8.66kg (claimed, medium frame)
Specialized Epic 9 Pro
- Frame: FACT 11m carbon, 120mm travel, SWAT Box 2.0 storage
- Shock: RockShox SIDLuxe Ultimate Flight Attendant
- Fork: RockShox SID Ultimate Flight Attendant, 120mm travel
- Wheelset: Roval Control SL VI, carbon rims (29mm internal), DT Swiss 350 hubs, DT Revolution straight pull spokes, Specialized Fast Trak (front) / Air Trak (rear), Flex Lite casing, T5/T7 compound, 29x2.35in
- Drivetrain: SRAM X0 Eagle Transmission, Quarq X0 Eagle power meter
- Brakes: SRAM Motive Silver, 180/160mm rotors
- Seatpost/saddle: Bike Yoke Divine SL dropper/Specialized Power Expert saddle
- Handlebar/stem: Roval Control SL carbon handlebar, 760mm/Roval alloy stem, 60/70mm
- Weight: 10.39kg (claimed, medium frame)
Specialized Epic 9 Expert
- Frame: FACT 11m carbon, 120mm travel, SWAT Box 2.0 storage
- Shock: RockShox SIDLuxe Select+
- Fork: RockShox SID Select+, 120mm travel
- Wheels/tyres: Roval Control SL V, carbon rims (29mm internal), DT Swiss 370 hubs, Sapim D-Light straight-pull spokes, Specialized Fast Trak (front) / Air Trak (rear), Flex Lite casing, T5/T7 compound, 29x2.35in
- Drivetrain: SRAM GX Eagle AXS Transmission
- Brakes: SRAM Motive Bronze, 180/160mm rotors
- Seatpost/saddle: X-Fusion Manic dropper/Body Geometry Power Sport saddle
- Cockpit: Specialized alloy handlebar, 750mm/ Roval alloy stem, 60/70mm
- Weight: 10.95kg (claimed, medium frame)
Specialized Epic 9 frameset
- Frame: S-Works FACT 12m carbon, 120mm travel, SWAT Box 2.0 storage
- Shock: RockShox SIDLuxe Ultimate Flight Attendant
- Fork: RockShox SID Ultimate Flight Attendant, 120mm travel
