Bike Comparison
    MSRP
    $4,000
    $4,699
    $4,699
    Where to Buy
    $4,000

    At Specialized

    $3,949

    16% off At Cycle Limited

    $4,699

    At Trek

    $3,699

    21% off At Trek

    See more

    Category
    EnduranceEnduranceEndurance
    Weight
    19.7 lbs19.6 lbs19.6 lbs
    6.5
    6.8
    6.8
    CarbonCarbonCarbon
    Fork
    CarbonCarbonCarbon
    Wheels
    AluminumAluminumAluminum
    Wheel Size
    700c700c700c
    Clearance
    38c38c38c
    Brakes
    Hydraulic DiscHydraulic DiscHydraulic Disc
    Groupset
    Apex XPLR AXS, Apex AXS105 Di2105 Di2
    Drivetrain
    1 × 12 Electronic2 × 12 Electronic2 × 12 Electronic
    Brand Site

    specialized.com

    trekbikes.com

    trekbikes.com

    Summary
    The Specialized Roubaix SL8 Sport Apex, Trek Domane SL 6 Gen 4, and Trek Domane SL 6 Gen 4 are all carbon frame endurance bikes with hydraulic disc brakes.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    2024 Roubaix SL8 Sport Apex
    2023 Domane SL 6 Gen 4
    2024 Domane SL 6 Gen 4
    Other Endurance bikes
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    33 mph

    2024 Roubaix SL8 Sport Apex

    39 mph

    2023 Domane SL 6 Gen 4

    39 mph

    2024 Domane SL 6 Gen 4

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    Frame

    FACT 10R, Rider First Engineered™ (RFE), FreeFoil Shape Library tubes, threaded BB, 12x142mm thru-axle, flat-mount disc

    BB StandardBSA, 68mm, Threaded

    Tire Clearance38c

    ColorsGloss Carbon / Smoke; Satin Metallic Spruce / Forest Green

    500 Series OCLV Carbon, IsoSpeed, internal storage, tapered head tube, internal cable routing, 3S chain keeper, fender mounts, flat mount disc, 142x12mm thru axle

    BB StandardBSA, 68mm, Threaded

    Tire Clearance38c

    ColorsGloss Carbon / Smoke; Satin Metallic Spruce / Forest Green

    500 Series OCLV Carbon, IsoSpeed, internal storage, tapered head tube, internal cable routing, 3S chain keeper, fender mounts, flat mount disc, 142x12mm thru axle

    BB StandardBSA, 68mm, Threaded

    Tire Clearance38c

    ColorsGloss Carbon / Smoke; Satin Metallic Spruce / Forest Green

    Fork

    Future Shock 3.1 w/ Smooth Boot, FACT Carbon 12x100mm, thru-axle, flat-mount disc

    Domane SL carbon, tapered carbon steerer, internal brake routing, fender mounts, flat mount disc, 12x100mm thru axle

    Domane SL carbon, tapered carbon steerer, internal brake routing, fender mounts, flat mount disc, 12x100mm thru axle

    Bottom Bracket

    SRAM DUB BSA

    Praxis, T47 threaded, internal bearing

    Praxis, T47 threaded, internal bearing

    Stem

    Future Stem Comp

    Size: 47, Trek RCS Pro, -7 degree, 70mm length; Size: 50, Trek RCS Pro, -7 degree, 80mm length; Size: 52, 54, Trek RCS Pro, -7 degree, 90mm length; Size: 56, 58, Trek RCS Pro, -7 degree, 100mm length; Size: 60, 62, Trek RCS Pro, -7 degree, 110mm length

    Size: 47, Trek RCS Pro, -7 degree, 70mm length; Size: 50, Trek RCS Pro, -7 degree, 80mm length; Size: 52, 54, Trek RCS Pro, -7 degree, 90mm length; Size: 56, 58, Trek RCS Pro, -7 degree, 100mm length; Size: 60, 62, Trek RCS Pro, -7 degree, 110mm length

    Handlebar

    Specialized Hover Comp, Alloy, 125mm Drop, 75mm Reach w/Di2 Hole

    Size: 47, Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 routing, 75mm reach, 128mm drop, 36cm width; Size: 50, Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 routing, 75mm reach, 128mm drop, 38cm width; Size: 52, Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 routing, 75mm reach, 128mm drop, 40cm width; Size: 54, 56, Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 routing, 75mm reach, 128mm drop, 42cm width; Size: 58, 60, 62, Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 routing, 75mm reach, 128mm drop, 44cm width

    Size: 47, Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 routing, 75mm reach, 128mm drop, 36cm width; Size: 50, Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 routing, 75mm reach, 128mm drop, 38cm width; Size: 52, Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 routing, 75mm reach, 128mm drop, 40cm width; Size: 54, 56, Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 routing, 75mm reach, 128mm drop, 42cm width; Size: 58, 60, 62, Bontrager Elite IsoZone VR-SF, alloy, 31.8mm, internal Di2 routing, 75mm reach, 128mm drop, 44cm width

    Saddle

    Body Geometry Power Sport, steel rails

    Size: 47, 50, 52, Bontrager Verse Short Comp, steel rails, 155mm width; Size: 54, 56, 58, 60, 62, Bontrager Verse Short Comp, steel rails, 145mm width

    Size: 47, 50, 52, Bontrager Verse Short Comp, steel rails, 155mm width; Size: 54, 56, 58, 60, 62, Bontrager Verse Short Comp, steel rails, 145mm width

    Seatpost

    S-Works Pave Seat post

    Size: 47, 50, 52, 54, 56, Domane carbon seatpost, KVF shaping, 20mm offset, 280mm length; Size: 58, 60, 62, Domane carbon seatpost, KVF shaping, 20mm offset, 320mm length

    Size: 47, 50, 52, 54, 56, KVF aero carbon seatpost, 20mm offset, 280mm length; Size: 58, 60, 62, KVF aero carbon seatpost, 20mm offset, 320mm length

    Pedals

    PEDAL, TEST RIDE PEDALS PROVIDED BY SPECIALIZED

    Groupset
    Rear Derailleur

    SRAM APEX XPLR eTAP AXS, 12-speed

    Shimano R7150 Di2, 36T max cog

    Shimano R7150 Di2, 36T max cog

    Front Derailleur

    Shimano 105 R7150 Di2, braze-on, down swing

    Shimano 105 R7150 Di2, braze-on, down swing

    Crank

    SRAM APEX AXS, Wide 12-speed, 42T

    Size: 47, Shimano 105 R7100, 50/34, 165mm length; Size: 50, 52, Shimano 105 R7100, 50/34, 170mm length; Size: 54, 56, Shimano 105 R7100, 50/34, 172.5mm length; Size: 58, 60, 62, Shimano 105 R7100, 50/34, 175mm length

    Size: 47, Shimano 105 R7100, 50/34, 165mm length; Size: 50, 52, Shimano 105 R7100, 50/34, 170mm length; Size: 54, 56, Shimano 105 R7100, 50/34, 172.5mm length; Size: 58, 60, 62, Shimano 105 R7100, 50/34, 175mm length

    Shifters

    SRAM APEX eTAP AXS, hydraulic disc

    Shimano 105 R7170 Di2, 12 speed

    Shimano 105 R7170 Di2, 12 speed

    Cassette

    SRAM APEX, PG 1231 XPLR, 11-44T

    Shimano 105 7100, 11-34, 12 speed

    Shimano 105 7101, 11-34, 12 speed

    Chain

    SRAM APEX, 12-Speed

    Shimano SLX M7100, 12 speed

    Shimano SLX M7100, 12 speed

    Brakes

    Front: SRAM APEX AXS, Rear: SRAM APEX AXS

    Shimano 105 hydraulic disc, BR-R7170 flat mount caliper, resin pad w/fin

    Shimano 105 hydraulic disc, flat mount

    Wheels
    Rims

    Front: DT Swiss G540 rim, 24mm internal width, tubeless ready, 24h, Specialized full sealed bearing thru axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples, Rear: DT Swiss G540 rim, 24mm internal width, tubeless ready, 24h, Specialized full sealed bearing thru axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples

    Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width

    Front: Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width, 100x12mm thru axle, Rear: Bontrager Paradigm Comp 25, Tubeless Ready, 25mm rim width, Shimano 11/12-speed freehub, 142x12 thru axle

    Front Hub

    Bontrager Paradigm Comp 25, Tubeless Ready, 25 mm rim width, 100x12 mm thru axle

    Bontrager Paradigm Comp 25, Tubeless Ready, 25 mm rim width, 100x12 mm thru axle

    Rear Hub

    Bontrager Paradigm Comp 25, Tubeless Ready, 25 mm rim width, Shimano 11/12-speed freehub, 142x12 thru axle

    Bontrager Paradigm Comp 25, Tubeless Ready, 25 mm rim width, Shimano 11/12-speed freehub, 142x12 thru axle

    Tires

    Front: S-Works Mondo 2BR, 700x32c, Rear: S-Works Mondo 2BR, 700x32c

    Bontrager R3 Hard-Case Lite, Tubeless Ready, aramid bead, 120 tpi, 700x32mm

    Bontrager R3 Hard-Case Lite, Tubeless Ready, aramid bead, 120 tpi, 700x32mm

    Disc Rotors

    Shimano RT70, centerlock, 160mm

    Shimano RT70, centerlock, 160mm

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