Trek Classic 20 Girl's

2011 YouthGeneral youth

Suspension: Rigid
Wheels: 20″
Drivetrain: 1 × 1 40t / 19t
Gear range: 100%
Frame: Steel
Brakes: Coaster brake

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

2 of 13 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

Trek Kids Cruiser, steel Not identified

Suspension

1 part

Fork

Cruiser steel Not identified

Drivetrain

5 parts

Cassette

19T Not identified
Crankset

Steel 1 piece, 40T Not identified
Front derailleur

None
Rear derailleur

None
Shifters

None

Brakes

1 part

Brakes

Coaster Not identified

Wheels and tires

2 parts

Rims

Steel front hub, coaster brake rear hub; 36-hole aluminum 20" rims Not identified
Tires
- Kenda K130

Cockpit and contact points

6 parts

Handlebar

Cruiser steel Not identified
Headset

Adjustable ball bearing Not identified
Pedals

Nylon platform Not identified
Saddle
- Trek
Seatpost

Steel Not identified
Stem

Alloy, single bolt Not identified

Sizes and geometry

1 size

Rider-height ranges are not published for these sizes.

Size

Geometry not published

The manufacturer lists these sizes without frame measurements, so there is no drawing or geometry table.

Specifications

Frame and fork

Intended fit: girls
Frame material: Steel
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 40
Largest chainring: 40
Rear sprockets: 1
Smallest sprocket: 19
Largest sprocket: 19
Lowest gear: 42.1 in
Highest gear: 42.1 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Coaster brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: No shifting

Additional specifications

Tire width: 2.125″
Wheel material: Aluminum
Wheel size: 20″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 16.1 km/h
Highest gear: 16.1 km/h

Total gear range 100%

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: 42.1–42.1 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 2011 builds

Differences across 2011 builds
Specification	This bicycle Trek Classic 20 Girl's	Trek Classic	Trek Classic 20 Boy's	Trek Classic 24 Girl's	Trek Classic Steel	Trek Classic Steel 3-Speed
Frame
Intended fit	girls	Unisex	boys	girls	Unisex	Unisex
Frame material	Steel	Aluminum	Steel	Steel	Steel	Steel
Drivetrain
Smallest chainring	40	38	40	42	38	36
Largest chainring	40	38	40	42	38	36
Rear sprockets	1	1	1	1	1	3
Smallest sprocket	19	18	19	19	18	18
Largest sprocket	19	18	19	19	18	18
Lowest gear	42.1 in	54.9 in	42.1 in	53.1 in	54.9 in	52.0 in
Highest gear	42.1 in	54.9 in	42.1 in	53.1 in	54.9 in	52.0 in
Cockpit
Shifting	No shifting	No shifting	No shifting	No shifting	No shifting	Mechanical
Other specifications
Tire width	2.125″	2.35″	2.125″	2.125″	2.35″	2.35″
Wheel size	20″	26″	20″	24″	26″	26″