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2025 Author

Elevation ASL

A 27.5″ aluminum frame hardtail trail e-bike with upper mid-range components.
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Weight51.6 lbs  
FrameAluminum
SuspensionHardtail, 120mm
ForkRST F1RST
Wheels27.5″ Aluminum
GroupsetCUES
MotorShimano 250W 85Nm mid-drive
BatteryShimano 630Wh
BrakesTRP Slate EVO Hydraulic Disc
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Elevation ASL
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

28 mph

Elevation ASL

26 mph

Similar Bikes

Highest gear

(descending)

Sizing
17"

5'2" – 5'8"

19"

5'6" – 6'1"

Rider Fit Notes

None yet.

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Geometry
Specs
Build
Frame

double butted hydroformed alloy 6061 27.5" (integrated battery)

BB StandardSTEPS, Press Fit

ColorBlack / Gold

Fork

RST F1RST 110-15 Air, air, lock out, 15 mm thru axle boost, 1.5" tapered steerer (120 mm)

Travel120mm

Spring TypeAir

Bottom Bracket

STEPS, press-fit

Stem

AUTHOR alloy

Handlebar

AUTHOR, 15 mm, 700 / 720 mm

Saddle

AUTHOR E-Donna

Seatpost

AUTHOR alloy (30.9)

TypeRigid

Pedals

HT platform

Grips

AUTHOR high density foam

Groupset
Rear Derailleur

SHIMANO Cues 6000

Crank

SHIMANO Steps EN-600, 38 teeth, 170 / 175 mm cranks

Shifters

SHIMANO Cues 6000 (11)

Cassette

SHIMANO CS-LG400-11, 11-50 (11)

Chain

KMC eGlide

Brakes

TRP Slate EVO, 4-piston disc hydraulic (7" rotors)

TypeTRP Slate EVO Hydraulic Disc

Wheels
Rims

AUTHOR E-Krypton 27.5, 32 holes

Spokes

black stainless steel 2.2 mm

Front Hub

QUANDO, 15 × 110 mm thru front axle 12 × 148 mm thru rear axle 32 holes

Rear Hub

QUANDO, 15 × 110 mm thru front axle 12 × 148 mm thru rear axle 32 holes

Tires

VITTORIA Barzo G2.0 aramid 27.5" × 2.25"

Electric Components
Motor

SHIMANO Steps EP-600, 250 W

Battery

SHIMANO EN806 Li-Ion, 36 V, 17,5 Ah, 630 Wh

Display

SHIMANO Steps EN610, LCD

Rider Notes
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First added March 9

Last updated October 28

Not listed for 578 days