Cannondale Topstone Neo 5 Electric Bike - 2021

Color:Black Pearl/graphite
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Built for gravel adventures, trekking, commuting and more, the Cannondale Topstone Neo 5 e-bike is a capable and versatile choice for chasing routes less traveled.

  • Features

    • SmartForm C1 alloy frame and a full carbon fork are lightweight, durable and high-performance
    • Shimano GRX 1 x 11-speed shifting and GRX hydraulic disc brakes provide reliable performance for rides across varied terrain
    • Bosch Performance Line Speed motor and 500 Wh Power Tube battery provide pedal assist up to 28 mph with a maximum range of 70 miles
    • Easy-to-use Bosch Purion display and control unit keeps you in command with a high-contrast data screen and intuitive mode selection no matter where or how you ride
    • Dialed riding position is upright enough for comfort over the long haul and control when tackling off-road terrain, yet still low and forward enough for speedy efficiency
    • Comes with big 700c x 36 mm tires for grip and comfort; tons of clearance means room for tires up to 42 mm—there's even room for fenders
    • Multiple mounts provide space for water bottles, racks and storage
    • 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 Electric Road Bikes
  • Technical Specs

    Best Use

    Road Cycling

    E-Bike Classification

    Class 3: pedal assist up to 28 mph


    Bosch Performance Line Speed

    Motor Type


    Motor Torque (Nm)

    85 Newton meters

    Battery Type

    Lithium Ion

    Battery Capacity (Wh)

    500 watt hours

    Battery Removable


    Charge Time (hrs)

    3.5 hours

    Pedal Assist Range

    70 miles

    Bike Frame Material



    SmartForm C1 Alloy Frame, 12 x 142 mm thru axle, removable down tube battery, SAVE, Ai, Si kickstand mount, rack/fender mounts



    Bike Suspension

    No Suspension


    1-1/8 to 1-1/4 in. steerer, 55 mm OutFront offset, flat mount disc, internal routing, 12 x 110 mm thru axle


    FSA Bosch E-Bike, FSA Megatooth, 42T


    Shimano GRX 600, 1 x 11-speed

    Front Derailleur

    Shimano GRX 400, braze-on

    Rear Derailleur

    Shimano GRX 400, Shadow RD+

    Rear Cogs

    11-42T, 11-speed

    Number of Gears

    11 gear(s)

    Brake Type

    Hydraulic Disc Brake


    Shimano GRX hydraulic disc, 160 mm RT54 rotors

    Brake Levers

    Shimano GRX hydraulic disc


    WTB ST TCS i23 28 h, tubeless ready

    Front Hub

    Formula CSG-1905, 12 x 110 mm thru axle

    Rear Hub

    RXC-142S, 12 x 142 mm thru axle

    Wheel Size



    WTB Exposure, 700c x 36 mm, tan sidewall, tubeless ready

    Tire Width

    36 millimeters

    Handlebar Shape

    Drop Bar


    Cannondale 3, butted 6061 alloy, 16 deg. flare drop


    Cannondale 2, 6061 alloy, 31.8 mm, 7 deg.

    Seat Post

    Promax SP-2032, alloy, 27.2 mm


    Fabric Scoop Shallow Sport, steel rails


    Not included


    Integrated, 1-1/2 in. lower to 1-1/8 in. upper w/ reducer, 25 mm alloy top cap


    KMC X10EL, 10-speed



    Bike Weight

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



  • Size Chart

    S M L XL
    Height Range 5'4" - 5'9" 5'7" - 6'1" 5'11" - 6'4" 6'3" - 6'8"
    Reach 37.7 38.7 39.4 40.2
    Stack 54.7 57.8 61.1 64.0
    Effective Top Tube 53.4 55.3 56.9 58.6
    Seat Tube Center-Top 44.5 49.0 53.5 58.0
    Standover Height 75.1 79.0 83.0 86.9
    Head Tube Length 12.6 15.7 19.1 22.2
    Head Tube Angle (degrees) 70.5 71.0 71.0 71.0
    Seat Tube Angle (degrees) 74.0 74.0 74.0 74.0
    Bottom Bracket Height 65.4 65.4 65.4 65.4
    Wheelbase 103.1 104.7 106.5 108.3
    Chainstay 43.0 43.0 43.0 43.0
    Fork Offset 5.5 5.5 5.5 5.5

    Sizing Notes

    Measurements are stated in centimeters unless otherwise indicated.

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