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2021 Trek

Sprocket 1 20"

A 20″ aluminum frame general youth bike with rim brakes.
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Manufacturer Price

$319
FrameAluminum
SuspensionRigid
ForkSteel
Wheels20″ Aluminum
DrivetrainSingle-speed
BrakesRim
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

11 mph

Sprocket 1 20"

18 mph

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Highest gear

(descending)

Sizing
20"

3'8" – 4'5"

Rider Fit Notes

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Geometry
Specs
Build
Frame

Aluminum w/patented Flat Foot Technology®

BB StandardBSA, 68mm, Threaded

ColorMatte Ninja Black

Fork

High tensile steel

Bottom Bracket

68 mm/126 mm threaded

Headset

1" steel threaded

Stem

Forged alloy 25.4 mm quill, 40 mm extension

Handlebar

Electra 20" Sprocket

Saddle

Electra Kids Selle Royal 20˝ saddle, matching design w/scuff guard

Seatpost

Alloy 27.2 mm x 250 mm

TypeRigid

Pedals

Resin 9/16˝ w/reflectors

Grips

Kraton

Groupset
Crank

Steel 3-Piece w/dual position 140 mm arms w/steel 32T chainring

Cassette

Sunrun 18T

Chain

KMC S1

Brakes

Front/rear: alloy linear-pull

TypeRim

Wheels
Rims

Anodized alloy w/machined sidewalls

Front Hub

Steel 32h

Rear Hub

Steel 32h freewheel

Tires

20 x 2.15" w/reflective stripe w/puncture-resistant Kevlar® Guard casing, 67TPI

Rider Notes
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First added August 28

Last updated April 16

Not listed for 1,869 days