Stevens E-Whaka+ ES

2018 MountainTrail Electric bicycle

Travel: 140 / 130 mm Fork / rear shock
Wheels: 27.5″
Drivetrain: 1 × 11 38t / 11–42t
Gear range: 382%
Battery: 504 Wh
Weight: 21.4 kg 47.2 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

21 of 24 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

Aluminum Not identified

Electric system

3 parts

Suspension

3 parts

Drivetrain

7 parts

Cassette
- Shimano Deore XT CS-M8000 11 speeds
CS-M8000
Chain
- Shimano CN-HG701
CN-HG701
Chain guide

None
Crankset
- Shimano FC-E8050
FC-E8050
Front derailleur

None
Rear derailleur
- Shimano Deore XT
Shifters
- Shimano Deore XT

Brakes

2 parts

Wheels and tires

4 parts

Front hub
- Shimano Deore XT
Rear hub
- Shimano Deore XT
Rims

Sun Ringle Duroc TR40 Not identified
Tires
- Schwalbe

Cockpit and contact points

6 parts

Handlebar
- Oxygen
Headset
- Stevens
Pedals

MTB Alu Flatpedal Reflex Not identified
Saddle
- Oxygen
Seatpost
- KS
Stem
- Oxygen

Sizes and geometry

4 sizes Open in the geometry plotter

Complete rider-height ranges are not published for these sizes. You can still explore the geometry below.

Size 18"

Table

Reach 447mm

Stack 608mm

Wheelbase 1183mm

Head angle 66.5°

Seat angle 76.9°

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 Reach Stack

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	427	447	467	482
Stackmm	604	608	617	627
Top tube lengthmm	554	574	595	612
Seat tube lengthmm	400	430	460	490
Head tube lengthmm	95	100	110	120
Head tube angle	66.5°	66.5°	66.5°	66.5°
Seat tube angle	76.9°	76.9°	76.9°	76.9°
Chainstay lengthmm	436	436	436	436
Wheelbasemm	1162	1183	1207	1226
Front centermm	726	747	771	790
Bottom bracket dropmm	8	8	8	8
Bottom bracket heightmm	347	347	347	347
Standover heightmm	719	732	744	755
Fork rakemm	37	36	36	36
Trailmm	114	115	115	115
Stack/reach ratio	1.42	1.36	1.32	1.30

Not published by the manufacturer: 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: 21.4 kg

47.2 lb

Suspension

Suspension configuration: Full suspension
Front travel: 140 mm
Rear travel: 130 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 38
Largest chainring: 38
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 42
Lowest gear: 24.9 in
Highest gear: 95.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Electronic

Electric system

Battery capacity: 504 Wh

Additional specifications

Battery: Shimano BT-E8010
Fork spring: Air
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

140 mm

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2018
Sample: 925 bicycles with this information
Coverage: 98.6% of the class

Lowest gear

24.9 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2018
Sample: 845 bicycles with this information
Coverage: 90.0% of the class

Highest gear

95.0 gear inches

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2018
Sample: 845 bicycles with this information
Coverage: 90.0% of the class

Shifting

Electronic

25 of 938 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2018
Sample: 938 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 9.5 km/h
Highest gear: 36.4 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.

This bicycle: 24.9–95.0 gear inches
Class reference (p10–p90): 16.5–93.5 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2018
Lowest gear: 845 bicycles with this information, 90.0% of the class
Highest gear: 845 bicycles with this information, 90.0% of the class