Tern GSD S00 Folding Electric Bike

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Looking for a bike that could replace your car? The Tern GSD S00 electric bike carries 2 kids plus groceries—or a whole lot of cargo—and with dual-battery technology, it's ready to ride all day.

  • Features

    • The same length as a regular bike, the GSD S00 is incredibly easy to own and use, thanks to space-saving features like FlatFold and Vertical Parking
    • With FlatFold, the handlebar and stem fold down next to the frame, and the seatpost telescopes all the way down, enabling the bike to fit in larger vehicles and tight spaces
    • Regular bikes take up a lot of floor space, but the GSD S00 parks vertically, so it takes up about as much space as a potted plant—perfect for city apartments and elevators
    • Bosch® Cargo Line Motor provides up to 85 Nm of torque and 400% support, making it easier to tackle big hills and ride with heavy loads
    • Heavy-duty, continuously variable Enviolo SP hub and Gates® CDX belt drive offer a silent, smooth ride that's virtually maintenance-free
    • Adjustable cockpit comfortably fits riders 4'11" to 6'5" (150 to 195 cm)
    • Super tough Atlas Lockstand™ automatically locks when engaged—just press a button on the handlebar to unlock
    • Heavy-duty frame-integrated rear rack and integrated lower decks offer plenty of kid and cargo capacity—this bike handles up to a 440 lb. (200 kg) Maximum Gross Vehicle Weight
    • Magura® MT5 eSTOP 4-piston hydraulic disc brakes deliver powerful and responsive braking in all conditions
    • Always-on RearStop™ brake light helps you signal stops
    • Integrated Abus® wheel lock is keyed-alike with the battery
    • Upgraded Atlas wheels feature custom CNC-machined hubs for extra strength and durability
    • Integrated Tern Valo direct head light provides 150 lumens (41 lux) to help you see and be seen
    • Compatible with a wide range of cargo- and passenger-carrying accessories (not included)
    • Fits up to 2 Thule® Yepp Maxi seats (not included) with no adapters needed
    • Specs and images are subject to change

    Imported.

    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 Tern GSD Product Line View all Tern Electric Cargo Bikes
  • Technical Specs

    Best Use

    Urban Cycling

    E-Bike Classification

    Class 1: pedal assist up to 20 mph

    Motor

    Bosch Cargo Line Motor

    Motor Type

    Mid-Drive

    Motor Torque (Nm)

    85 Newton meters

    Battery Type

    Lithium Ion

    Battery Capacity (Wh)

    500 watt hours

    Battery Removable

    Yes

    Charge Time (hrs)

    2.5-4 hours

    Pedal Assist Range

    31-63 miles

    Frame

    6061 aluminum

    Step-Through

    Yes

    Bike Suspension

    Front Suspension

    Fork

    Chromoly steerer; 32 mm stanchions

    Fork Travel

    70 millimeters

    Crankset

    Tern GSD custom, Gates CDX CNC-machined beltring

    Bottom Bracket

    Motor integrated

    Shifters

    Enviolo twist

    Rear Cogs

    Gates CDX, precision CNC-machined cog

    Internally Geared

    Yes

    Brake Type

    Hydraulic Disc Brake

    Brakes

    Magura MT5

    Brake Levers

    MT5 E-Stop, hydraulic, with brake sensor

    Rims

    Tern Atlas, ultrawide 36 mm, dual reinforced joint

    Front Hub

    Tern Atlas, Boost thru axle, cargo-optimized design, sealed cartridge bearing

    Rear Hub

    Enviolo Sport 380, Boost

    Wheel Size

    20 inches

    Tires

    Front: Schwalbe Big Ben Plus 20 x 2.15 in. (55-406); rear: Schwalbe Super Moto-X 20 x 2.4 in. (62-406); both with Green Guard puncture protection and Reflex

    Tire Width

    2.4 inches

    2.15 inches

    Handlebar Shape

    Moustache Bar

    Handlebar

    6061 aluminum

    Stem

    Tern Andros, adjustable, forged construction, patented technology

    Seat Post

    Tern Telescope, 34.9/30.9 mm, 2014 aluminum, telescopic

    Saddle

    Tern GSD by Velo with rear handle

    Pedals

    Urban with nonslip surface, sealed bearings

    Headset

    Tern Flux Pro Taper, 1.5 in., angular contact bearings, Physis Integrated

    Chain

    Gates Cabon Drive CDX belt

    Belt Drive

    Yes

    Weight

    77 lbs. 1.9 oz.

    Bike Weight

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

    Gender

    Unisex

    Sustainability

    Contains recycled materials

  • Reviews
    2 reviews with an average rating of 5.0 out of 5 stars

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