Benno Boost E 10D Step-Through Electric Bike

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Color: Bone Gray
Size: One Size
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A compact and extremely sturdy electric utility bike, the Benno Boost E 10D step-through e-bike is always ready for the next adventure, whether that's close to home or far afield.

  • Features

    • Rigid aluminum frame and big 24 x 2.6 in. custom tires carry up to a gross weight of 440 lbs., including the rider, bike and cargo
    • 250W Bosch Performance Line Speed electric motor provides up to 85 Nm of torque for Class 3 pedal assist up to 28 mph, with a low weight of just 7 lbs. 1.6 oz.
    • Bosch Powerpack 500 Wh lithium-ion battery offers an assisted range of 30 to 75 mi., depending on riding mode and charge
    • Built to accommodate a dual-battery function so you can expand what's possible with up to 1,000 Wh for even more range and capability (second battery not included)
    • The Bosch Dual Battery system switches intelligently between the 2 batteries, both during charging and discharging
    • Manage e-bike functionality and choose from 5 riding modes with the minimalist Bosch Purion on-board computer
    • Upright riding position and ergonomic handlebar design lets you ride with purpose—without sacrificing comfort and maneuverability
    • Included Supernova Mini 2 front and E3 rear lights help you see and be seen in low-light conditions
    • 10-speed drivetrain with hydraulic disc brakes offer premium gearing and braking
    • Oversize 6061 aluminum alloy fork with an integrated headset
    • Designed to fit a wide variety of riders from 5'1" to 6'3"; step-through frame design makes it easy to hop on and ride
    • Multifunction rear rack boasts a max load of 130 lbs. (60 kg); smart rack system can be expanded with additional accessories (not included) to suit your needs
    • Specs and images are subject to change


    This e-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:
    • An additional year of free adjustments (2 total years; see below)
    • 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 electric bicycles sold at REI include free adjustments for the defined period (one year after purchase date for non-members, or two years for REI Co-op Members)—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation, chain lubrication and e-bike firmware updates. 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 Benno Boost Product LineView all Benno Electric Cargo Bikes
  • Technical Specs

    Best Use

    Urban Cycling

    E-Bike Classification

    Class 3: pedal assist up to 28 mph


    Bosch Performance Speed 250W

    Motor Type


    Motor Torque (Nm)

    85 Newton meters

    Battery Type

    Lithium Ion

    Battery Capacity (Wh)

    500 watt hours

    Battery Removable


    Charge Time (hrs)

    7.5 hours

    Pedal Assist Range

    30-75 miles


    6061 aluminum



    Bike Suspension

    No Suspension


    6061 aluminum


    Shimano Deore SL 10-speed

    Rear Derailleur

    Shimano Deore 10-speed

    Rear Cogs

    11-42T, 10-speed

    Number of Gears

    10 gear(s)

    Brake Type

    Hydraulic Disc Brake


    Shimano Deore hydraulic disc, 180/160 mm rotors

    Brake Levers

    Shimano Deore


    Aluminum double wall with eyelets, 36H

    Front Hub

    Shimano Deore, quick-release

    Rear Hub

    Shimano Deore, quick-release

    Wheel Size

    24 inches


    Custom Benno Dual Sport, 24 x 2.6 in. (45 psi)

    Tire Width

    2.6 inches

    Handlebar Shape

    Riser Bar


    Aluminum, 675 mm width, 126 mm rise


    Aluminum threadless

    Seat Post

    Aluminum, 30.9 mm diameter, 350 mm length


    Benno Endurance with Rear Handle




    FSA integrated


    E Deca-101


    65 pounds

    Bike Weight

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



  • Size Chart

    One Size
    Height Range5'1" - 6'3"
    Effective Top Tube630
    Seat Tube Center-Top485
    Standover Height660

    Sizing Notes

    Measurements are stated in millimeters 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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