Stromer ST1 X Sport

2020 UrbanCommuter Electric bicycle

Last known price: $4,999

Prices shown first for United States
Suspension: Rigid
Wheels: 26″
Drivetrain: 1 × 10 52t / 11–42t
Gear range: 382%
Battery: 618 Wh
Weight: 26.76 kg 59.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

17" Not informed
20" 174–187
22" 184+

Components

18 of 22 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

Frame

STROMER alloy Not identified

Electric system

2 parts

Battery

Lithium Ion, 618 watt hours Not identified
Motor

CYRO Drive 500W 35Nm Not identified

Suspension

1 part

Fork
- Stromer

Drivetrain

7 parts

Bottom bracket
- FSA
Cassette
- Shimano Deore CS-M4100 10 speeds
CS-M4100
Chain
- FSA
Crankset
- FSA Omega 52t
Front derailleur

None
Rear derailleur
- Shimano Deore
Shifters
- Shimano Deore

Brakes

2 parts

Brake levers
- Tektro
Brakes
- Tektro Dorado
HD-E715

Wheels and tires

4 parts

Front hub
- Formula DC-71
DC-71
Rear hub

CYRO Drive 500W hub motor Not identified
Rims
- Alex Rims
Tires
- Schwalbe Big Ben

Cockpit and contact points

6 parts

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 20"

Table

Geometry diagram unavailable

The drawing needs reach, stack and bottom bracket drop / Bottom bracket height, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Top tube lengthmm	582	582	605
Seat tube lengthmm	432	508	559
Head tube lengthmm	205	205	205
Head tube angle	70°	70°	70°
Seat tube angle	73°	73°	73°
Chainstay lengthmm	435	435	435
Wheelbasemm	1074	1074	1097
Fork rakemm	38	38	38

Not published by the manufacturer: Reach, Stack, Front center, Bottom bracket drop, Bottom bracket height, Standover height, Trail, Stack/reach ratio, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Aluminum
Bicycle weight: 26.76 kg

59.0 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 52
Largest chainring: 52
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 32.2 in
Highest gear: 122.9 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 618 Wh

Additional specifications

Battery: Lithium Ion, 618 watt hours
Tire width: 2.15″
Wheel material: Aluminum
Wheel size: 26″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 12.3 km/h
Highest gear: 47.1 km/h

Total gear range 382%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.