Bergamont Bergamonster 20 Plus blue

2026 YouthMountain youth Manufacturer page

Bergamont Bergamonster 20 Plus blue, color Shiny Caribbean Blue

Price: Not published

Prices shown first for United States
United Kingdom: £349 Last known price
Suspension: Rigid
Wheels: 20″
Drivetrain: 1 × 8 32t / 11–34t
Gear range: 309%
Weight: 10.2 kg 22.5 lb · Reference configuration not specified
Frame: Aluminum
Brakes: Mechanical disc

Sizes

Size guide

One Size

The manufacturer did not publish rider heights for these sizes.

Components

20 of 23 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 11–34t
CS-M55
Chain
- KMC
Crankset
- Prowheel 32t
Rear derailleur
- Shimano Tourney TX RD-TX800 8 speeds
RD-TX800
Shifters
- Shimano SL-RS45
SL-RS45

Brakes

3 parts

Wheels and tires

5 parts

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

steel, black Not identified
Tires
- Kenda Slant Six

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 One Size

Table

Geometry diagram unavailable

The drawing needs head tube angle and seat tube angle, which the manufacturer did not publish. Available facts remain in the table.

Size Reach Stack

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Reachmm	289
Stackmm	427
Top tube lengthmm	435
Seat tube lengthmm	260
Head tube lengthmm	110
Chainstay lengthmm	365
Wheelbasemm	852
Front centermm	489
Bottom bracket dropmm	30
Standover heightmm	511
Fork rakemm	45
Stack/reach ratio	1.48

Not published by the manufacturer: Head tube angle, Seat tube angle, 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: Unisex
Frame material: Aluminum
Fork material: Aluminum
Bicycle weight: 10.2 kg

22.5 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 34
Lowest gear: 18.8 in
Highest gear: 58.2 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: 2.6″
Travel: Front: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 20″

Technical analysis

1 measure

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

Shifting

Mechanical

9 of 321 bicycles with this information use electronic shifting.

Cohort: Youth / Mountain youth Model year: 2026
Sample: 321 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 7.2 km/h
Highest gear: 22.3 km/h

Total gear range 309%

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: 18.8–58.2 gear inches

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 2026 builds
Specification	This bicycle Bergamont Bergamonster 20 Plus blue	Bergamont Bergamonster 20 blue	Bergamont Bergamonster 20 Plus yellow	Bergamont Bergamonster 20 purple
Frame
Fork material	Aluminum	Not informed	Aluminum	Not informed
Bicycle weight	10.2 kg	11.2 kg	10.2 kg	11.2 kg
Suspension
Suspension configuration	Rigid	Hardtail	Rigid	Hardtail
Front travel	Not informed	40 mm	Not informed	40 mm
Drivetrain
Smallest chainring	32	36	32	36
Largest chainring	32	36	32	36
Rear sprockets	8	7	8	7
Smallest sprocket	11	13	11	13
Lowest gear	18.8 in	21.2 in	18.8 in	21.2 in
Highest gear	58.2 in	55.4 in	58.2 in	55.4 in
Brakes
Brake type	Mechanical disc	Rim brake	Mechanical disc	Rim brake
Other specifications
Suspension	Rigid	Hardtail	Rigid	Hardtail
Tire width	2.6″	2.2″	2.6″	2.2″
Fork spring	Not informed	Coil	Not informed	Coil