Bike Comparison
    MSRP
    $10,000$1,799
    Where to Buy
    $1

    At

    $1

    At

    Category
    EnduranceEndurance
    Weight
    16.8 lbs23.0 lbs
    8.8
    3.4
    CarbonAluminum
    Fork
    CarbonCarbon
    Wheels
    CarbonAluminum
    Wheel Size
    700c700c
    Clearance
    35c
    Brakes
    Hydraulic DiscHydraulic Disc
    Groupset
    RED AXSTiagra
    Drivetrain
    2 × 12 Electronic2 × 10
    Brand Site

    cannondale.com

    trekbikes.com

    Summary
    The Cannondale Synapse Carbon Hi-MOD Red eTap AXS is a carbon frame endurance bike with ultra high-end components and hydraulic disc brakes.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    2023 Domane AL 4 Disc
    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)

    40 mph

    2021 Synapse Carbon Hi-MOD Red eTap AXS

    39 mph

    2023 Domane AL 4 Disc

    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

    BallisTec Hi-MOD Carbon, Di2 ready, SAVE, BB30a, flat mount, 12mm thru axle, internal cable routing, removable fender bridge, Di2 ready, SAVE, BB30a, Flat mount, 12mm thru axle, Internal cable routing, Removable fender bridge

    BB StandardPF30, Press Fit

    100 Series Alpha Aluminum, tapered head tube, internal routing, fender mounts, DuoTrap S compatible, flat mount disc, 142x12mm thru axle

    BB StandardPF30, Press Fit

    Fork

    BallisTec Hi-MOD Carbon, SAVE, integrated crown race, 12x100mm thru-axle, internal routing, size-specific design - 44-48: 1 1/8" steerer, 60mm rake 51-54: 1-1/8" - 1-1/4" tapered steerer, 55mm rake 56-61: 1-1/8" - 1-3/8" tapered steerer, 45mm rake

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

    Bottom Bracket

    SRAM RED DUB PF30

    Shimano RS500, 68mm, threaded external

    Headset

    Synapse Si, 25mm Carbon top cap

    FSA Integrated, sealed cartridge bearing, 1-1/8'' top, 1.5'' bottom

    Stem

    All-New HollowGram SAVE, alloy, -6°

    Size: 44, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 70mm length; Size: 49, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 80mm length; Size: 52, 54, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length; Size: 56, 58, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 100mm length; Size: 61, Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 110mm length

    Handlebar

    HollowGram SystemBar SAVE, Carbon, 8 deg. pitch adjust

    Size: 44, 49, Bontrager Comp VR-S, alloy, 31.8mm, 81mm reach, 118mm drop, 38cm width; Size: 52, Bontrager Comp VR-S, alloy, 31.8mm, 81mm reach, 118mm drop, 40cm width; Size: 54, 56, Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 42cm width; Size: 58, 61, Bontrager Comp VR-C, alloy, 31.8mm, 100mm reach, 124mm drop, 44cm width

    Saddle

    Fabric Scoop Shallow Pro, carbon rails

    Size: 44, 49, 52, Bontrager Verse Comp, steel rails, 155mm width; Size: 54, 56, 58, 61, Bontrager Verse Comp, steel rails, 145mm width

    Seatpost

    SAVE Carbon, 25.4 x 350mm

    Size: 44, 49, Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 250mm length; Size: 52, 54, 56, 58, 61, Bontrager Comp, 6061 alloy, 27.2mm, 8mm offset, 330mm length

    Grips

    Cannondale Grip Bar Tape w/Gel, 3.5mm

    Groupset
    Rear Derailleur

    SRAM RED eTap AXS

    Shimano Tiagra 4700, long cage, 34T max cog

    Front Derailleur

    SRAM RED eTap AXS, braze-on

    Shimano Tiagra 4700, 31.8mm clamp

    Crank

    SRAM RED Carbon, 46/33

    Size: 44, Shimano Tiagra 4700, 50/34, 165mm length; Size: 49, 52, Shimano Tiagra 4700, 50/34, 170mm length; Size: 54, 56, Shimano Tiagra 4700, 50/34, 172.5mm length; Size: 58, 61, Shimano Tiagra 4700, 50/34, 175mm length

    Shifters

    SRAM RED eTap AXS HRD, 2x12

    Shimano Tiagra R4725, short reach lever, 10 speed

    Cassette

    SRAM XG-1290, 10-33, 12-speed

    Shimano HG500, 11-32, 10 speed

    Chain

    SRAM RED, 12-speed

    Shimano Tiagra HG54, 10 speed

    Brakes

    SRAM RED eTap AXS HRD, 160/160mm Centerlock rotors

    Size: 44, 49, 52, 54, 56, 58, 61, Shimano Tiagra hydraulic disc; Size: 44, 49, 52, 54, 56, 58, 61, Shimano Tiagra hydraulic disc, flat mount

    Brake Levers

    SRAM RED eTap AXS HRD

    Wheels
    Rims

    HollowGram 45 SL KNØT, Carbon, 20h front, 24h rear, 45mm deep, 21mm ID, tubeless ready

    Size: 44, 49, 52, 54, 56, 58, 61, Bontrager Affinity Disc, Tubeless Ready, 24-hole, 21mm width, Presta valve; Size: 44, 49, 52, 54, 56, 58, 61, Bontrager Paradigm SL, Tubeless Ready, 24-hole, 21mm width, Presta valve; Size: 44, 49, 52, 54, 56, 58, 61, Bontrager Paradigm, Tubeless Ready, 24-hole, 21mm width, Presta valve

    Spokes

    DT Swiss Aerolite

    14g stainless steel, black

    Front Hub

    HollowGram KNØT, sealed bearing 12x100 centerlock

    Formula RX-512 alloy, 6-bolt, 100x12mm thru axle

    Rear Hub

    HollowGram KNØT, 12x142 centerlock w/ DT Swiss internals, SRAM XDR driver

    Formula RX-142 alloy, 6-bolt, Shimano 11-speed freehub, 142x12mm thru axle

    Tires

    Vittoria Corsa, 700 x 28c

    Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32mm

    Disc Rotors

    Shimano RT66, 6-bolt, 160mm

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