Bergamont Grandurance 4

2021 RoadGravel Manufacturer page

Bergamont Grandurance 4, color Petrol / Gold/silver (Shiny/matt)

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 9 34–50t / 11–34t
Gear range: 455%
Weight: 11.1 kg 24.5 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

49cm
53cm
55cm
57cm
61cm

The manufacturer did not publish rider heights for these sizes.

Components

19 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

28", ultra lite AL-6061 tubing Not identified

AL-6061

Suspension

1 part

Fork

Grandurance Alloy, quick release, fender mount Not identified

Drivetrain

7 parts

Bottom bracket
- Shimano
Cassette
- Shimano CS-HG201-9 9 speeds 11–34t
CS-HG201
Chain
- KMC X9 9 speeds
Crankset
- Shimano Sora FC-R3000 9 speeds 50/34t
FC-R3000
Front derailleur
- Shimano Sora FD-R3000 2 speeds
FD-R3000
Rear derailleur
- Shimano Sora RD-R3000 9 speeds
RD-R3000
Shifters
- Shimano Sora ST-R3000
ST-R3000

Brakes

2 parts

Brake levers
- Shimano Sora ST-R3000
ST-R3000
Brakes
- Shimano BR-R317
BR-R317SM-RT54

Wheels and tires

5 parts

Front hub
- BGM
Rear hub
- BGM
Rims
- Shining
DB-T260
Spokes

stainless, black Not identified
Tires
- Schwalbe G-One Allround

Cockpit and contact points

7 parts

Sizes and geometry

5 sizes Open in the geometry plotter

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

Size 55cm

Table

Reach 392mm

Stack 588mm

Wheelbase 1042mm

Head angle 71.0°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 5 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	385	395	392	401	410
Stackmm	541	560	588	607	625
Top tube lengthmm	530	545	560	575	590
Seat tube lengthmm	475	510	535	555	585
Head tube lengthmm	115	135	160	180	200
Head tube angle	70°	70°	71°	71°	71°
Seat tube angle	75°	75°	74°	74°	74°
Chainstay lengthmm	425	425	425	425	425
Wheelbasemm	1030	1045	1042	1060	1075
Front centermm	615	630	627	645	660
Bottom bracket dropmm	70	70	70	70	70
Bottom bracket heightmm	279	279	279	279	279
Standover heightmm	740	768	795	813	838
Fork rakemm	50	50	50	50	50
Trailmm	73	75	67	65	65
Stack/reach ratio	1.41	1.42	1.50	1.51	1.52

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
Fork material: Aluminum
Bicycle weight: 11.1 kg

24.5 lb
Weight limit: 115 kg

253.5 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 9
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 29.0 in
Highest gear: 131.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Mechanical disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire width: 35c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

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

Lowest gear

29.0 gear inches

This value is within the central range for this class.

Cohort: Road / Gravel Model year: 2021
Sample: 668 bicycles with this information
Coverage: 86.3% of the class

Highest gear

131.8 gear inches

This value is above the central range for this class.

Cohort: Road / Gravel Model year: 2021
Sample: 668 bicycles with this information
Coverage: 86.3% of the class

Shifting

Mechanical

144 of 774 bicycles with this information use electronic shifting.

Cohort: Road / Gravel Model year: 2021
Sample: 774 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.1 km/h
Highest gear: 50.5 km/h

Total gear range 455%

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: 29.0–131.8 gear inches
Class reference (p10–p90): 24.2–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Road / Gravel Model year: 2021
Lowest gear: 668 bicycles with this information, 86.3% of the class
Highest gear: 668 bicycles with this information, 86.3% 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 2021 builds

Differences across 2021 builds
Specification	This bicycle Bergamont Grandurance 4	Bergamont Grandurance 6	Bergamont Grandurance 6 FMN	Bergamont Grandurance 8	Bergamont Grandurance Elite	Bergamont Grandurance Expert
Frame
Frame material	Aluminum	Aluminum	Aluminum	Aluminum	Carbon	Carbon
Fork material	Aluminum	Aluminum	Aluminum	Carbon	Carbon	Carbon
Bicycle weight	11.1 kg	10.2 kg	10.2 kg	9.8 kg	9.2 kg	9.6 kg
Weight limit	115 kg	115 kg	115 kg	115 kg	110 kg	110 kg
Drivetrain
Front chainrings	2	2	2	1	1	2
Smallest chainring	34	30	30	40	40	30
Largest chainring	50	46	46	40	40	46
Rear sprockets	9	10	10	11	11	10
Largest sprocket	34	36	36	42	42	36
Lowest gear	29.0 in	24.2 in	24.2 in	27.6 in	27.6 in	24.2 in
Highest gear	131.8 in	121.3 in	121.3 in	105.5 in	105.5 in	121.3 in
Brakes
Brake type	Mechanical disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc	Hydraulic disc