Bergamont E-Contrail Expert

2020 MountainTrail Electric bicycle Manufacturer page

Bergamont E-Contrail Expert, color Dirty Orange / Black (Matt/shiny)

Travel: 130 / 130 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 34t / 10–51t
Gear range: 510%
Battery: 625 Wh
Weight: 23.6 kg 52.0 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 158–171
MD 168–180
LG 178–189
XL 186–199

Components

23 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

29", ultra lite AL-6061 tubing, PowerTube battery, 130 mm rear travel Not identified

AL-6061

Electric system

2 parts

Suspension

2 parts

Drivetrain

6 parts

Bottom bracket
- Bosch
Cassette
- Shimano SLX CS-M7100 12 speeds 10–51t
CS-M7100
Chain
- Shimano SLX CN-M7100
CN-M7100
Crankset
- FSA 34t
CK-320
Rear derailleur
- Shimano SLX RD-M7100 12 speeds
RD-M7100
Shifters
- Shimano SLX SL-M7100
SL-M7100

Brakes

2 parts

Brake levers
- Shimano BL-MT401
BL-MT401
Brakes
- Shimano BR-MT420
BR-MT420SM-RT30

Wheels and tires

5 parts

Cockpit and contact points

6 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 440mm

Stack 624mm

Wheelbase 1209mm

Head angle 66.5°

Seat angle 75.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	415	440	460	480
Stackmm	621	624	637	651
Top tube lengthmm	575	601	625	650
Seat tube lengthmm	400	445	480	515
Head tube lengthmm	120	120	135	150
Head tube angle	66°	66.5°	66.5°	66.5°
Seat tube angle	75°	75°	75°	75°
Chainstay lengthmm	459	459	459	459
Wheelbasemm	1189	1209	1235	1261
Front centermm	732	752	778	804
Bottom bracket dropmm	35	35	35	35
Bottom bracket heightmm	339	339	339	339
Standover heightmm	766	770	782	798
Fork rakemm	51	51	51	51
Trailmm	111	107	107	107
Stack/reach ratio	1.50	1.42	1.39	1.36

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: 23.6 kg

52.0 lb
Weight limit: 135 kg

297.6 lb

Suspension

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

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 34
Largest chainring: 34
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 19.3 in
Highest gear: 98.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Electric system

Battery capacity: 625 Wh

Additional specifications

Battery: Motor: Bosch Drive Unit Performance Line CX Cruise, Gen. 4, 250 W, 36 V, max. 25 km/h Display: Bosch Purion Battery: Bosch 36 V Li Ion, 625 Wh, PowerTube Assistance Modes: Eco (+60%), Tour (+140%), eMTB (+140 - 340%), Turbo ( +340%), Walk Assist (-5 km/h)
Bottom bracket standard: Bosch
Fork spring: Air
Tire width: 2.6″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

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

Front travel

130 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

19.3 gear inches

This value is within 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

98.6 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: 7.4 km/h
Highest gear: 37.8 km/h

Total gear range 510%

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: 19.3–98.6 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 Bergamont E-Contrail Expert	Bergamont E-Contrail Pro
Frame
Bicycle weight	23.6 kg	23.9 kg
Drivetrain
Smallest sprocket	10	11
Largest sprocket	51	50
Lowest gear	19.3 in	19.7 in
Highest gear	98.6 in	89.6 in
Electric bicycle systems
Battery capacity	625 Wh	500 Wh
Other specifications
Fork spring	Air	Not informed