Cannondale Topstone Carbon 105 Bike - 2020

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Capable off-road and comfortable on-road, the Cannondale Topstone Carbon 105 is a unique gravel bike with true suspension—but no heavy shock—offering 30mm of rear travel to smooth out bumps.

  • Features

    • Shimano 105 2 x 11 mechanical drivetrain with crisp, reliable shifting; hydraulic disc brakes offer excellent stopping power on any terrain
    • Lightweight KingPin suspension system lets you ride harder on dirt and more smoothly on pavement, giving you better control, traction and comfort
    • KingPin system provides up to 30mm of travel at the saddle thanks to a thru-axle pivot joining the seatstays and seat tube
    • Flex zones in the chainstays, seat tube and top tube offer compliance at the saddle and added absorption at the rear axle
    • Thru-axle LockR pivot locks the left and right seatstays together, preventing independent rotation for a solid feel and instantaneous response
    • Comes with big 700C x 37mm tires for grip and comfort, but fits up to 700C x 40mm tires thanks to a roomy design with tons of clearance
    • Also fits smaller 650B wheels with up to 48mm wide tires for riders who are looking for maximum flotation
    • Store gear and water with multiposition mounts on the downtube, top tube, seat tube and under the down tube—there are even mounts on the fork
    • Fully fender ready; a removable fender bridge on the rear stays is there when you need it and gone when you don't
    • Speed Release thru axles offer the stiffness and solid feel of a thru axle with the easy use of a quick-release axle; compatible with most thru-axle wheelsets
    • Direct Line internal cable routing guides the cable and housing through the frame using an internal tube from entry to exit for headache-free service
    • Built to accept an internally-routed 27.2 dropper seatpost
    • Balanced riding position is upright enough for comfort over the long haul and control for technical off-road terrain, yet still low and forward enough for speedy efficiency
    • OutFront steering geometry keeps the steering light and agile, while positioning the wheel farther in front of the rider for stability and confidence on rougher stuff
    • An integrated wheel sensor delivers hyperaccurate speed, route and distance info, bike registration, service reminders and more—all through the free Cannondale app
    • Suspension and overall frame ride-feel is custom-tuned by size using different carbon layup and tube dimensions
    • Pedals not included
    • 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 Topstone Product LineView all Cannondale Endurance Bikes
  • Technical Specs

    Best Use

    Road Cycling

    Frame

    BallisTec Carbon

    Fork

    BallisTec Carbon, BB30-83 Ai, 142x12 Speed Release thru-axle, flat-mount disc

    Bike Suspension

    Seat Suspension

    Crankset

    Cannondale 1, BB30a, FSA rings, 46/30

    Bottom Bracket

    Cannondale Alloy PressFit30

    Shifters

    Shimano 105 hydro disc, 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

    Hydraulic Disc Brake

    Brakes

    Shimano 105 hydro disc, 160/160mm RT30 rotors

    Brake Levers

    Shimano 105 hydro disc

    Rims

    WTB ST i23 TCS, 28h, tubeless ready

    Front Hub

    Formula CL-712, 12x100 Center Lock

    Rear Hub

    Formula RXC-400, 12x142 Center Lock

    Wheel Size

    700c

    Tires

    WTB Riddler TCS Light, 700c x 37mm, tubeless ready

    Tire Width

    37 millimeters

    Handlebar Shape

    Drop Bar

    Handlebar

    Cannondale 3, butted 6061 alloy, 16° flare drop

    Stem

    Cannondale 3, 6061 alloy, 31.8, 7°

    Seat Post

    Cannondale 3, 6061 alloy, 27.2 x 350mm

    Saddle

    Fabric Scoop Shallow Sport, steel rails

    Pedals

    Not Included

    Headset

    Integrated, 1.5 in. lower to 1-1/8 in. upper with reducer, 25mm Alloy top cap

    Chain

    KMC X11, 11-speed

    Weight

    20 lbs. 14.4 oz.

    Bike Weight

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

    Gender

    Unisex

  • Size Chart

    SMLXL
    Height Range5'4" - 5'9"5'7" - 6'1"5'11" - 6'4"6'3" - 6'8"
    Reach37.738.539.440.2
    Stack54.957.961.064.0
    Effective Top Tube54.456.157.959.6
    Seat Tube Center-Top45.850.555.360.0
    Standover Height76.180.384.388.5
    Head Tube Length13.116.519.823.2
    Head Tube Angle (degrees)71.2°71.2°71.2°71.2°
    Seat Tube Angle (degrees)73.1°73.1°73.1°73.1°
    Bottom Bracket Height27.828.028.028.3
    Wheelbase101.0103.0104.0106.0
    Chainstay41.541.541.541.5
    Fork Offset5.55.55.55.5

    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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