Trek Jet 20 S

2010 YouthGeneral youth

Suspension: Rigid
Wheels: 20″
Drivetrain: 1 × 1 32t / 19t
Gear range: 100%
Frame: Steel
Brakes: Coaster brake

Sizes

Size guide

The manufacturer did not publish rider heights for these sizes.

Components

13 parts

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

High tensile steel, 20" Dialed frame size Not identified

Suspension

1 part

Fork

High tensile steel Not identified

Drivetrain

2 parts

Cassette

19T cog Not identified
Crankset

Dialed 4.5", 32T Not identified

Brakes

1 part

Brakes

Coaster Not identified

Wheels and tires

2 parts

Rims

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

Cross knobby, 20x1.95" Not identified

Cockpit and contact points

6 parts

Handlebar

Dialed 20" size, steel Not identified
Headset

Adjustable ball bearing Not identified
Pedals

Dialed 20" size, platform Not identified
Saddle

Dialed 20" size, padded Not identified
Seatpost

Steel Not identified
Stem

Alloy and steel, four 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: Unisex
Frame material: Steel
Fork material: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 1
Smallest sprocket: 19
Largest sprocket: 19
Lowest gear: 33.7 in
Highest gear: 33.7 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: 1.95″
Wheel material: Aluminum
Wheel size: 20″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 12.9 km/h
Highest gear: 12.9 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: 33.7–33.7 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 2010 builds

Differences across 2010 builds
Specification	This bicycle Trek Jet 20 S	Trek Jet 12	Trek Jet 16	Trek Jet 20
Frame
Frame material	Steel	Steel	Steel	Aluminum
Drivetrain
Smallest chainring	32	24	26	32
Largest chainring	32	24	26	32
Smallest sprocket	19	19	19	18
Largest sprocket	19	19	19	18
Lowest gear	33.7 in	15.2 in	21.9 in	35.6 in
Highest gear	33.7 in	15.2 in	21.9 in	35.6 in
Brakes
Brake type	Coaster brake	Coaster brake	Coaster brake	Rim brake
Other specifications
Tire width	1.95″	2.125″	2.125″	1.95″
Wheel size	20″	12″	16″	20″