Author Essence

Name: Author Essence
Brand: Author

2025 UrbanHybrid Electric bicycle Manufacturer page

Fork travel: 80 mm
Wheels: 29″
Drivetrain: 1 × 9 38t / 11–41t
Gear range: 373%
Battery: 504 Wh
Weight: 20.7 kg 45.6 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

17" 155–169
19" 167–182

Components

20 of 23 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

double butted hydroformed alloy 6061 29" (L) Not identified

Electric system

3 parts

Battery
- Shimano Steps BT-E8010
BT-E8010E-8010
Display
- Shimano SC-E6100 2 speeds
SC-E6100E-6100
Motor
- Shimano DU-E5000 1 speed
DU-E5000E-5000

Suspension

1 part

Fork
- RST

Drivetrain

6 parts

Bottom bracket

STEPS, press-fit Not identified
Cassette
- Shimano CS-LG300-9 9 speeds
CS-LG300
Chain
- KMC
Crankset
- Shimano FC-E5010
FC-E5010E-5010
Rear derailleur
- Shimano Cues RD-U4000 9 speeds
RD-U4000
Shifters
- Shimano Cues SL-U4000
SL-U4000

Brakes

1 part

Brakes
- Tektro HD-M280 / HD-M281
HD-M280HD-M281

Wheels and tires

5 parts

Front hub
- Author
Rear hub
- Author
Rims
- Author
Spokes

black stainless steel 2.2 mm Not identified
Tires
- Author

Cockpit and contact points

6 parts

Sizes and geometry

2 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 17"

Table

Geometry diagram unavailable

The drawing needs reach and stack, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 2 published sizes

Complete manufacturer geometry by size
Measurement
Top tube lengthmm	565	585
Seat tube lengthmm	432	483
Head tube lengthmm	120	130
Head tube angle	70.5°	70.5°
Seat tube angle	73.5°	73.5°
Chainstay lengthmm	489	489
Wheelbasemm	1112	1132
Front centermm	630	649
Bottom bracket dropmm	60	60
Fork rakemm	44	44

Not published by the manufacturer: Reach, Stack, 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
Bicycle weight: 20.7 kg

45.6 lb

Suspension

Suspension configuration: Hardtail
Front travel: 80 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 38
Largest chainring: 38
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 41
Lowest gear: 26.9 in
Highest gear: 100.2 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 504 Wh

Additional specifications

Battery: SHIMANO E-8010 Li-Ion, 36 V, 14 Ah, 504 Wh
Bottom bracket standard: Shimano STEPS
Fork spring: Air
Tire width: 1.75″
Wheel material: Aluminum
Wheel size: 29″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 10.3 km/h
Highest gear: 38.4 km/h

Total gear range 373%

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.