Stromer ST1 S

Stromer ST1 S
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Take command of your daily commute with a little extra "oomph" from Stromer's ST1 S. With a 500-watt Power 48 motor and 30Nm of torque, you'll chew through big hills and streak down neighborhood roads as though going fast were your full time job. This drive system will boost you to a max-assisted top speed of 28 miles per hour, too. A 9-speed Shimano XT/Schlumpf Speed Drive gives you the gearing you'll need to handle hills and flats, while Tektro's Dorado disc brakes keep smooth, sure stopping power right at your fingertips.

The Schlumpf drive is an ultra thin planetary gearing system. Gears are changed by a push button located at the axle. Simply bump the button with your heel to shift.

Schlumpf Speed Drive Crank

The Schlumph button sits behind a kickplate on the crank arm

Schlumpf Speed Drive Crank - Back

Planetary gears eliminate the need for a second chainring

Stromer integrated battery
Stromer's ST-series batteries integrate into the frame for additional protection and a sleek, clean look.
Stromer ST1 interface
Tune power dispersion and monitor ride information at just the touch of one of three buttons from the intuitive control panel. Monitor and adjust your energy consumption, switch between modes, engage regenerative braking and lots more.


Fork Stromer ST1 carbon fork
Electric-Assist Type Rear Hub
Motor Specs 500 watt
Drive System POWER 48
Battery Type/Weight ST522, 522 Wh, 36V
Range on Full Charge 25 - 56 Miles
Saddle Stromer
Bicycle Drivetrain Shimano XT w/Speed Drive 32T chainring, 9-speed 11-32 cassette
Tires Continental Top Contact II 26 x 2.0
Brakes Tektro Dorado hydraulic disc
Pedals Wellgo Platforms
Accessories & Extras Fenders, Rack, Front Supernova/Rear B+M Lights

* Subject to change without notice.

Part Numbers

Option MPN
Green / 17-inch 400182
Green / 20-inch 400185