S-Works Epic Hardtail

£7750.00


Part No. 91319-0003

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HOME > BIKES > MOUNTAIN > S-WORKS EPIC HARDTAIL

Call it a healthy disrespect for the status quo but we were getting bored with hardtail designs. So instead of playing along with a glued-on smile we opted to turn the cross country world on its head with a bike that's not only the lightest mountain frame we've ever made. It's our lightest frame—period. Introducing the S-Works Epic Hardtail.

Over the last decade cross country racing has evolved into a completely different animal—the courses are rowdier more technical and overall they're inherently different. Because of this we realized that the best bike for the job needs to not only be lightweight and stiff but also be able to descend and climb with equal prowess. Determining the best geometry was the easier of the two as we took our current XC race geo and added some trail DNA to the mix. This equates to a longer top tube a shortened the head tube and a slacked out the front end the result of which is a tremendous increase in downhill stability plus a wider fit range. And just as importantly this doesn't require any sacrifice of climbing proficiency. The weight aspect was more complicated though. We were posed with the question "How do you take weight out of something that's already so light?" But the answer was relatively obvious: you get the best mountain bike engineers together in one room and let the magic come out.

Up until now there were two ways to lighten up a frame—use less of the same grade of carbon or use less of a higher-grade carbon. Option one is never a viable solution as it sacrifices stiffness and strength two attributes that shouldn’t be tampered with. And while we did end up using option two we weren’t content with the amount of weight we could cut out by just using a different grade of carbon. So how else do you cut weight? Well we began looking at our layup schedules to see if they could be improved which shed light on a new discovery—layup inefficiencies.

Beginning with our Rider-First Engineered™ frame technology each size Epic Hardtail is specifically tailored to size—every carbon layup and tube are exclusively selected based upon hundreds of hours of collected ride data. What does this mean for you? It not only creates the optimal balance of rigidity weight and responsiveness across every frame size but it led us to the discovery of how to save weight through the studying of the layup.

Through extensive layup studies we made the discovery that by further controlling the construction and layup schedules we could drastically decrease weight all while maintaining the ride characteristics that you’d expect from a top-level XC race bike. With this discovery each frame now features complex cut carbon plys that allow difficult junctions to be covered with less overlap. And while this does complicate the carbon frame puzzle by adding more pieces to the mix it allows us to design and place them more intelligently. The result of this is a lighter frame stronger junctions and a drastic increase in stiffness. We then took the weight savings one step further by using Japanese military ballistic-grade carbon which we now call 12m to create the lightest mountain bike we've ever made. How much lighter of a frame you ask? Less than 900 grams for a size Large frame—the same weight as a full 24oz Purist water bottle.

For the build the S-Works spares no expense opting for a custom RockShox SID World Cup fork with Brain SRAM XX1 Eagle™12-speed shifting SRAM Level Ultimate hydraulic disc brakes and hand-built Roval Control SL carbon wheels.

  • Using S-Works FACT 12m carbon fibre, the Epic frame perfectly blends stiffness, crazy light weight and super-strength guaranteed to deliver unparalleled speed and nimble handling no matter the cross country course.
  • A massive 90/100mm of efficient travel is provided by the custom RockShox SID World Cup 29 fork. Featuring Brain technology, the fork masterfully distinguishes between terrain under the wheel and rider input maximising power.
  • SRAM™s venerable XX1 EagleTM components take care of the 1x drivetrain to create the ultimate mountain bike groupset combining efficiency and intuitive feel, as well as significant weight shavings and low maintenance requirements.


Please note that this bike does not come with pedals.


FRAMESpecialized S-Works FACT 12m, XC Geometry, internal split-housing cable routing, PF30 BB, 12x148mm rear-end, triangulated post-mount 160mm brake
FORKRockShox SID World Cup Brain 29, Solo Air, Top-Adjust, 51mm offset, 15x110mm thru-axle (S: 90mm, M-XL: 100mm)
FRONT HUBRoval Control SL, sealed cartridge bearings, 15mm thru-axle, 110mm spacing, 24h
REAR HUBRoval Control SL, DT Swiss Star Ratchet, 54t engagement, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h
SPOKESDT Swiss Competition Race
RIMSRoval Control SL, hookless carbon, 25mm internal width, tubeless-ready, hand-built
INNER TUBESPresta, 60mm valve
FRONT TYREFast Trak, GRIPTON® compound, 60 TPI, 2Bliss Ready, 29x2.3"
REAR TYREFast Trak, GRIPTON® compound, 60 TPI, 2Bliss Ready, 29x2.1"
CRANKSETSRAM XX1 Eagle, Boostâ„¢ 148, DUB, 170/175mm
CHAINRINGSSRAM Eagle Alloy 32T
BOTTOM BRACKETSRAM, DUB, PF30
SHIFT LEVERSSRAM XX1 Eagle, trigger, 12-speed
REAR DERAILLEURSRAM XX1 Eagle, 12-speed
CASSETTESRAM XG-1295 Eagle, 12-speed, 10-50t
CHAINSRAM XX1 Eagle, 12-speed
FRONT BRAKESRAM Level Ultimate, hydraulic disc
REAR BRAKESRAM Level Ultimate, hydraulic disc
HANDLEBARSS-Works Carbon Mini Rise, 6-degree upsweep, 8-degree backsweep, 10mm rise, 750mm, 31.8mm
GRIPSSpecialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
STEMS-Works SL
SADDLEBody Geometry Phenom Pro, Adaptive edge design, carbon fiber rails, carbon fiber base, 143mm
SEATPOSTS-Works FACT carbon, 0mm offset
SEAT BINDERSpecialized Alloy, 30.0mm, titanium bolt
PEDALSSpecialized Dirt

As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying.

Please note that this bike does not come with pedals.


Size S M L XL
BB Drop 61mm 61mm 61mm 61mm
BB Height 309mm 309mm 309mm 309mm
Bike Standover Height 760mm 790mm 814mm 845mm
Chainstay Length 430mm 430mm 430mm 430mm
Fork Length, Full 496mm 506mm 506mm 506mm
Fork Rake/Offset 51mm 51mm 51mm 51mm
Front Center 650mm 676mm 705mm 731mm
Head Tube Angle 69.8° 69.8° 69.8° 69.8°
Head Tube Length 95mm 95mm 110mm 125mm
Reach 395mm 418mm 441mm 462mm
Seat Tube Angle 74° 74° 74° 74°
Seat Tube Length 400mm 430mm 470mm 520mm
Stack 599mm 608mm 622mm 637mm
Top Tube Length, Horizontal 568mm 595mm 623mm 649mm
Trail 82mm 82mm 82mm 82mm
Wheelbase 1073mm 1099mm 1128mm 1154mm

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