Trek Sprocket 1 20"

2021 YouthGeneral youth Manufacturer page

Trek Sprocket 1 20", color Matte Ninja Black

Last known price: $319

Prices shown first for United States
Suspension: Rigid
Wheels: 20″
Drivetrain: 1 × 1 32t / 18t
Gear range: 100%
Frame: Aluminum
Brakes: Rim brake

Rider height by size (cm)

Size guide

20" 111.8–134.6

Components

3 of 18 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

Aluminum w/patented Flat Foot Technology® Not identified

Suspension

1 part

Fork

High tensile steel Not identified

Drivetrain

4 parts

Bottom bracket

68 mm/126 mm threaded Not identified
Cassette

Sunrun 18T Not identified
Chain
- KMC S1 1 speed
Crankset

Steel 3-Piece w/dual position 140 mm arms w/steel 32T chainring Not identified

Brakes

1 part

Brakes

Front/rear: alloy linear-pull Not identified

Wheels and tires

4 parts

Front hub

Steel 32h Not identified
Rear hub

Steel 32h freewheel Not identified
Rims

Anodized alloy w/machined sidewalls Not identified
Tires

20 x 2.15" w/reflective stripe w/puncture-resistant Kevlar® Guard casing, 67TPI Not identified

Cockpit and contact points

7 parts

Grips

Kraton Not identified
Handlebar
- Electra
Headset

1" steel threaded Not identified
Pedals

Resin 9/16˝ w/reflectors Not identified
Saddle
- Electra
Seatpost

Alloy 27.2 mm x 250 mm Not identified
Stem

Forged alloy 25.4 mm quill, 40 mm extension Not identified

Sizes and geometry

1 size Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 20"

Table

Geometry diagram unavailable

The drawing needs head tube angle, head tube length, chainstay length and bottom bracket drop / Bottom bracket height, which the manufacturer did not publish. Available facts remain in the table.

Size Reported by the manufacturer

Complete manufacturer geometry table 1 published size

Complete manufacturer geometry by size
Measurement
Reachmm	245
Stackmm	433
Seat tube lengthmm	302
Seat tube angle	67°
Wheelbasemm	900
Standover heightmm	530
Stack/reach ratio	1.77

Not published by the manufacturer: Top tube length, Head tube length, Head tube angle, Chainstay length, Front center, Bottom bracket drop, Bottom bracket height, Fork rake, 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: Steel

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 32
Largest chainring: 32
Rear sprockets: 1
Smallest sprocket: 18
Largest sprocket: 18
Lowest gear: 35.6 in
Highest gear: 35.6 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Rim brake

Fit and controls

Seatpost: Rigid seatpost
Shifting: No shifting

Additional specifications

Bottom bracket standard: BSA
Tire width: 2.15″
Travel: Front: Additional specification: Not available: Yes
Rear: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 20″

Gearing

Estimated speeds at 80 rpm

Lowest gear: 13.6 km/h
Highest gear: 13.6 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: 35.6–35.6 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 2021 builds
Specification	This bicycle Trek Sprocket 1 20"	Trek Sprocket 1 16"	Trek Sprocket 1 16" Boys'	Trek Sprocket 1 16" Girls'	Trek Sprocket 1 20" Girls'
Frame
Intended fit	Unisex	Unisex	boys	girls	girls
Bicycle weight	Not informed	9.5 kg	9.5 kg	9.5 kg	10.4 kg
Drivetrain
Smallest chainring	32	26	26	26	32
Largest chainring	32	26	26	26	32
Smallest sprocket	18	19	19	19	18
Largest sprocket	18	19	19	19	18
Lowest gear	35.6 in	21.9 in	21.9 in	21.9 in	35.6 in
Highest gear	35.6 in	21.9 in	21.9 in	21.9 in	35.6 in
Brakes
Brake type	Rim brake	Coaster brake	Coaster brake	Coaster brake	Rim brake
Other specifications
Wheel size	20″	16″	16″	16″	20″