Author Elevation ASL 27.5

2020 MountainTrail Electric bicycle Manufacturer page

Fork travel: 120 mm
Wheels: 27.5″
Drivetrain: 1 × 10 38t / 11–36t
Gear range: 327%
Battery: 500 Wh
Weight: 10 kg 22.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

17" 158–172
19" 169–184
21" 182–200

Components

19 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 27.5" Not identified

Electric system

3 parts

Battery
- Shimano BT-E8035
BT-E8035
Display
- Shimano SC-E7000 2 speeds
SC-E7000
Motor
- Shimano DU-E7000 1 speed
DU-E7000DUE-7000

Suspension

1 part

Fork
- RST

Drivetrain

6 parts

Bottom bracket

STEPS, press-fit Not identified
Cassette
- Shimano CS-HG50-10 10 speeds
CS-HG50-10
Chain
- KMC
Crankset
- Shimano FC-E8000
FC-E8000
Rear derailleur
- Shimano Deore
Shifters
- Shimano Deore

Brakes

1 part

Brakes
- TRP

Wheels and tires

5 parts

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

stainless steel hi-ten 2.2 mm black Not identified
Tires
- Vittoria

Cockpit and contact points

6 parts

Grips
- Author
Handlebar
- Author
Pedals

HT platform Not identified
Saddle
- Author
Seatpost
- Author
Stem
- Author

Sizes and geometry

3 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 19"

Table

Reach 426mm

Stack 636mm

Wheelbase 1170mm

Head angle 68.0°

Seat angle 73.5°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 27.5″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 3 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	409	426	444
Stackmm	626	636	640
Top tube lengthmm	600	620	640
Seat tube lengthmm	432	483	535
Head tube lengthmm	120	130	135
Head tube angle	68°	68°	68°
Seat tube angle	73°	73.5°	73°
Chainstay lengthmm	465	465	465
Wheelbasemm	1149	1170	1191
Front centermm	689	710	731
Bottom bracket dropmm	51	51	51
Bottom bracket heightmm	304	304	304
Fork rakemm	43	43	43
Trailmm	98	98	97
Stack/reach ratio	1.53	1.49	1.44

Not published by the manufacturer: Standover height, 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: 10 kg

22.0 lb

Suspension

Suspension configuration: Hardtail
Front travel: 120 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 38
Largest chainring: 38
Rear sprockets: 10
Smallest sprocket: 11
Largest sprocket: 36
Lowest gear: 29.0 in
Highest gear: 95.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 500 Wh

Additional specifications

Battery: SHIMANO BT-E8035 Li-lon, 36 V, 14 Ah, 500 Wh
Bottom bracket standard: Shimano STEPS
Fork spring: Air
Tire width: 2.25″
Wheel material: Aluminum
Wheel size: 27.5″

Technical analysis

4 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

120 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,348 bicycles with this information
Coverage: 93.8% of the class

Lowest gear

29.0 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,217 bicycles with this information
Coverage: 84.6% of the class

Highest gear

95.0 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,217 bicycles with this information
Coverage: 84.6% of the class

Shifting

Mechanical

55 of 1,437 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2020
Sample: 1,437 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.1 km/h
Highest gear: 36.4 km/h

Total gear range 327%

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.

This bicycle: 29.0–95.0 gear inches
Class reference (p10–p90): 17.1–98.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2020
Lowest gear: 1217 bicycles with this information, 84.6% of the class
Highest gear: 1217 bicycles with this information, 84.6% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2020 builds

Differences across 2020 builds
Specification	This bicycle Author Elevation ASL 27.5	Author Elevation 29
Frame
Bicycle weight	10 kg	22 kg
Suspension
Front travel	120 mm	100 mm
Drivetrain
Lowest gear	29.0 in	30.6 in
Highest gear	95.0 in	100.2 in
Other specifications
Wheel size	27.5″	29″