Cannondale Synapse AL Disc SE 105 Bike - 2019

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On anything from fast group rides to daily commutes, the Cannondale Synapse AL Disc SE 105 bike's lightweight, comfortable, supportive position helps you ride faster and longer.

  • Features

    • An ideal first road bike for someone looking for exceptional handling, comfort, performance, versatility and value
    • Endurance Geometry provides stable, confident handling and a more upright riding position for all-day comfort
    • The Synapse features updated SAVE Micro-Suspension flex zones in the rear triangle and fork to keep you comfortable and in control
    • SmartForm C2 Alloy Construction and new full carbon forks deliver exceptionally light weight for this category for a high-performance feel
    • With clearance for tires up to 32mm wide, and subtle rack and fender mounts, the Synapse is ready for back-road exploring, group rides, fast commutes and anything in between
    • Specs and images are subject to change

    Imported.

    This bike comes with Coast to Coast Support, which includes:
    • 1 year of free adjustments (see more below)
    • In-store bike assembly
    • Pickup in store or curbside
    • Bike experts available at 170+ bike shops
    REI Co-op Members get more:
    • Free flat tire repairs (labor only; parts not included)
    • 20% off shop services
    More about our free adjustments:
    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 the Cannondale Synapse Product LineView all Cannondale Endurance Bikes
  • Technical Specs

    Best Use

    Road Cycling

    Frame

    SmartForm C2 Alloy

    Fork

    Synapse Disc Asymmetric, SAVE, Full Carbon, 1-1/8 in. - 1 1/4 in. tapered steerer, flat mount, 55mm rake, 12x100 thru axle

    Bike Suspension

    No Suspension

    Crankset

    Cannondale Si, BB30 w/ FSA rings, 48/32

    Bottom Bracket

    Cannondale BB30

    Shifters

    Shimano 105, 2x11

    Front Derailleur

    Shimano 105, braze-on

    Rear Derailleur

    Shimano 105 GS

    Rear Cogs

    Shimano 105, 11-34, 11-speed

    Number of Gears

    22 gear(s)

    Brake Type

    Mechanical Disc Brake

    Brakes

    Tektro Spyre-C cable actuated disc, 160/160mm

    Brake Levers

    Shimano 105 7000

    Rims

    WTB ST i19, 28h, tubeless ready

    Front Hub

    Formula RX-512 12x100

    Rear Hub

    CX-22 QR

    Wheel Size

    700c

    Tires

    WTB Exposure TCS, 700 x 30c, tubeless ready

    Tire Width

    30 millimeters

    Handlebar Shape

    Drop Bar

    Handlebar

    Cannondale C3, 6061 Alloy, Compact

    Stem

    Cannondale C3, 6061 Alloy, 31.8, 7°

    Seat Post

    Cannondale C3, 6061 Alloy, 25.4 x 350mm (44-56), 400mm (58-61)

    Saddle

    Fabric Scoop Radius Sport, steel rails

    Pedals

    Wellgo w/ Clip and Strap

    Headset

    FSA Integrated, 1-1/4 in. lower bearing, 25mm top cap

    Chain

    KMC X11, 11-speed

    Weight

    20 lbs. 12.8 oz.

    Gender

    Unisex

  • Size Chart

    44 CM48 CM51 CM54 CM56 CM58 CM61 CM
    Reach36.537.137.638.338.939.440.3
    Stack5153555758.960.963.9
    Effective Top Tube50.551.753.154.756.35860.4
    Seat Tube Center-Top4042.244.348525559
    Standover Height6870.172.275.578.781.685.1
    Head Tube Length10.412.314.315.917.820.223.2
    Head Tube Angle (degrees)70.2°70.8°71.0°71.9°72.1°72.3°72.5°
    Seat Tube Angle (degrees)74.7°74.6°74.3°73.9°73.5°73.0°72.5°
    Bottom Bracket Height27272727.227.227.527.5
    Wheelbase99.299.9101100.4101.4102.5104.1
    Chainstay41.341.341.341.341.341.341.3
    Fork Offset6665555

    Sizing Notes

    Measurements are stated in centimeters unless otherwise indicated.

    How we measure bikes

    1. Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.
    2. Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
    3. Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.
    4. Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.
    5. Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.
    6. Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
    7. Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
    8. Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
    9. Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
    10. Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
    11. Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
    12. Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.
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