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From fast group rides to your daily commute, the alloy Cannondale Synapse Disc 105 bike's light weight, supportive position and smooth ride will help you ride faster, longer and more often.

  • Features

    • Shimano 105 2 x 11 mechanical drivetrain delivers crisp, reliable shifting; mechanical disc brakes offer excellent, reliable stopping power in all conditions
    • SmartForm C2 Alloy construction and full carbon fork deliver exceptionally light weight for this category for a high-performance feel
    • Endurance Race geometry positions you forward enough to go hard but upright enough to go long
    • SAVE micro-suspension technology in the frame, fork, bar and seatpost insulates you from bumps while keeping you connected to the road
    • Full internal cable routing and flat-mount disc
    • Pedals not included; specs and images are subject to change


    Free Adjustment Period:
    New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
    View all Cannondale Endurance Bikes
  • Technical Specs

    Best Use

    Road Cycling

    Bike Frame Material



    SmartForm C2 alloy


    Full Carbon, 55mm rake

    Bike Suspension

    No Suspension


    FSA Gossamer alloy, BB30, 50/34t

    Bottom Bracket

    Cannondale BB30


    Shimano 105, 2x11

    Front Derailleur

    Shimano 105, braze-on

    Rear Derailleur

    Shimano 105 GS

    Rear Cogs

    Shimano 105, 11-34t, 11-speed

    Number of Gears

    22 gear(s)

    Brake Type

    Mechanical Disc Brake


    TRP Spyre-C cable actuated disc, 160/160mm rotors

    Brake Levers

    Shimano 105


    RD 2.0, 28h

    Front Hub

    Formula CRX-512, 12x100 thru axle

    Rear Hub

    Formula CX-22, quick-release

    Wheel Size



    Vittoria Zaffiro, 700 x 30mm

    Tire Width

    30 millimeters

    Handlebar Shape

    Drop Bar


    Cannondale 3, 6061 alloy, Compact


    Cannondale 3, 6061 alloy, 31.8, 7°

    Seat Post

    Cannondale 3, 6061 alloy, 25.4 x 350mm (44-56), 400mm (58-63)


    Cannondale Stage Ergo


    Not included


    FSA sealed bearing, integrated, tapered 1-1/4 to 1-1/8 in.


    KMC X11, 11-speed


    22 lbs.

    Bike Weight

    Bike weight is based on median size, as sold, or the average of two median sizes.



  • Size Chart

    51 CM 54 CM 56 CM 58 CM 61 CM
    Reach 37.6 38.3 38.9 39.4 40.3
    Stack 55.0 57.0 58.9 60.9 63.9
    Effective Top Tube 53.1 54.7 56.3 58.0 60.4
    Seat Tube Center-Top 44.3 48.0 52.0 55.0 59.0
    Standover Height 72.2 75.5 78.7 81.6 85.1
    Head Tube Length 14.3 15.9 17.8 20.2 23.2
    Head Tube Angle (degrees) 74.3° 73.9° 73.5° 73.0° 72.5°
    Seat Tube Angle (degrees) 74.3° 73.9° 73.5° 73.0° 72.5°
    Bottom Bracket Height 27.0 27.2 27.2 27.5 27.5
    Wheelbase 101.0 100.4 101.4 102.5 104.1
    Chainstay 41.3 41.3 41.3 41.3 41.3
    Fork Offset 6.0 5.0 5.0 5.0 5.0

    Sizing Notes

    Measurements are stated in centimeters unless otherwise indicated.

  • Reviews
    7 reviews with an average rating of 4.3 out of 5 stars

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