Bergamont Bergamonster 20 Girl

2021 YouthMountain youth Manufacturer page

Bergamont Bergamonster 20 Girl, color Fuchsia / Black/red (Shiny)

Suspension: Rigid
Wheels: 20″
Drivetrain: 1 × 7 36t / 13–34t
Gear range: 262%
Weight: 9.1 kg 20.1 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Rim brake

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

17 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

20", lite AL-6061 tubing Not identified

AL-6061

Suspension

1 part

Fork
- BGM

Drivetrain

6 parts

Bottom bracket

Sealed cartridge, BSA Not identified
Cassette
- SunRace 13–34t
MF-M300
Chain
- KMC Z7 7 speeds
Crankset
- BGM 36t
Rear derailleur
- Shimano Tourney RD-TY300 7 speeds
RD-TY300
Shifters
- Shimano SL-RV200
SL-RV200

Brakes

2 parts

Brake levers

V-Brake lever, alloy, adjustable reach Not identified
Brakes

Alloy V-brakes Not identified

Wheels and tires

5 parts

Front hub
- BGM
Rear hub
- BGM
Rims
- Shining
V-6NS
Spokes

steel, black Not identified
Tires
- Kenda K1166

Cockpit and contact points

7 parts

Grips
- BGM
Handlebar
- BGM
Headset
- BGM
FP-H807
Pedals
- Marwi
SP-700
Saddle
- BGM
Seatpost
- BGM
Stem
- BGM

Sizes and geometry

1 size Open in the geometry plotter

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

Size 26"

Table

Reach 330mm

Stack 414mm

Wheelbase 874mm

Head angle 69.0°

Seat angle 72.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 20″ wheel; exact published values are in the table below.

Size Reach Stack

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Reachmm	330
Stackmm	414
Top tube lengthmm	465
Seat tube lengthmm	260
Head tube lengthmm	110
Head tube angle	69°
Seat tube angle	72°
Chainstay lengthmm	360
Wheelbasemm	874
Front centermm	516
Bottom bracket dropmm	30
Standover heightmm	494
Fork rakemm	35
Stack/reach ratio	1.26

Not published by the manufacturer: Bottom bracket height, Trail, Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: girls
Frame material: Aluminum
Fork material: Aluminum
Bicycle weight: 9.1 kg

20.1 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 36
Largest chainring: 36
Rear sprockets: 7
Smallest sprocket: 13
Largest sprocket: 34
Lowest gear: 21.2 in
Highest gear: 55.4 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Tire width: 1.95″
Travel: Front: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 20″

Technical analysis

2 measures

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

Lowest gear

21.2 gear inches

This value is within the central range for this class.

Cohort: Youth / Mountain youth Model year: 2021
Sample: 230 bicycles with this information
Coverage: 72.3% of the class

Highest gear

55.4 gear inches

This value is within the central range for this class.

Cohort: Youth / Mountain youth Model year: 2021
Sample: 230 bicycles with this information
Coverage: 72.3% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 8.1 km/h
Highest gear: 21.2 km/h

Total gear range 261%

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: 21.2–55.4 gear inches
Class reference (p10–p90): 15.6–80.0 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Youth / Mountain youth Model year: 2021
Lowest gear: 230 bicycles with this information, 72.3% of the class
Highest gear: 230 bicycles with this information, 72.3% 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
Specification	This bicycle Bergamont Bergamonster 20 Girl	Bergamont Bergamonster 20 Boy	Bergamont Bergamonster 20 Plus
Frame
Intended fit	girls	boys	Unisex
Bicycle weight	9.1 kg	9.1 kg	10.2 kg
Drivetrain
Smallest chainring	36	36	32
Largest chainring	36	36	32
Smallest sprocket	13	13	11
Lowest gear	21.2 in	21.2 in	18.8 in
Highest gear	55.4 in	55.4 in	58.2 in
Brakes
Brake type	Rim brake	Rim brake	Mechanical disc
Other specifications
Tire width	1.95″	1.95″	2.6″

Changes since 2020
Specification	2020 Bergamont Bergamonster 20 Girl	This bicycle Bergamont Bergamonster 20 Girl
Frame
Bicycle weight	8.9 kg	9.1 kg
Drivetrain
Smallest chainring	32	36
Largest chainring	32	36
Smallest sprocket	14	13
Largest sprocket	28	34
Lowest gear	22.9 in	21.2 in
Highest gear	45.7 in	55.4 in
Other specifications
Bottom bracket standard	Not informed	BSA