Bergamont Contrail 8

2020 MountainTrail Manufacturer page

Bergamont Contrail 8, color Dirty Orange / Black (Matt)

Travel: 130 / 130 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 32t / 10–51t
Gear range: 510%
Weight: 14.3 kg 31.5 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

20 of 22 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, 130 mm rear travel Not identified

AL-6061

Suspension

2 parts

Drivetrain

6 parts

Bottom bracket
- Shimano SM-BB71
SM-BB71BB-71
Cassette
- Shimano SLX CS-M7100 12 speeds 10–51t
CS-M7100
Chain
- Shimano SLX CN-M7100
CN-M7100
Crankset
- Shimano SLX FC-M7100 12 speeds 32t
FC-M7100
Rear derailleur
- Shimano Deore XT RD-M8100 12 speeds
RD-M8100
Shifters
- Shimano Deore XT SL-M8100
SL-M8100

Brakes

2 parts

Brake levers
- Shimano BL-MT401
BL-MT401
Brakes
- Shimano BR-MT420
BR-MT420SM-RT64

Wheels and tires

5 parts

Front hub
- Shimano HB-MT400
HB-MT400
Rear hub
- Shimano FH-MT510
FH-MT510
Rims
- Alex Rims
Spokes

stainless, double butted, black Not identified
Tires
- Maxxis

Cockpit and contact points

7 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 440mm

Stack 613mm

Wheelbase 1170mm

Head angle 67.5°

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	423	440	455	469
Stackmm	603	613	626	645
Top tube lengthmm	575	595	615	635
Seat tube lengthmm	412	453	483	518
Head tube lengthmm	95	105	120	140
Head tube angle	67.5°	67.5°	67.5°	67.5°
Seat tube angle	75°	75°	75°	75°
Chainstay lengthmm	438	438	438	438
Wheelbasemm	1149	1170	1191	1212
Front centermm	714	735	756	777
Bottom bracket dropmm	38	38	38	38
Bottom bracket heightmm	336	336	336	336
Standover heightmm	761	767	778	796
Fork rakemm	51	51	51	51
Trailmm	100	100	99	100
Stack/reach ratio	1.43	1.39	1.38	1.38

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: 14.3 kg

31.5 lb
Weight limit: 115 kg

253.5 lb

Suspension

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

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 18.2 in
Highest gear: 92.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB86/BB92
Fork spring: Air
Tire width: 2.35″
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

18.2 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

92.8 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

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: 7.0 km/h
Highest gear: 35.5 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: 18.2–92.8 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 Contrail 8	Bergamont Contrail 5	Bergamont Contrail Pro
Frame
Frame material	Aluminum	Aluminum	Carbon
Bicycle weight	14.3 kg	14.9 kg	13.9 kg
Drivetrain
Smallest sprocket	10	11	10
Largest sprocket	51	50	51
Lowest gear	18.2 in	18.6 in	18.2 in
Highest gear	92.8 in	84.4 in	92.8 in