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2026 Frog

City 53

A 20″ aluminum frame general youth bike with modest components and tektro rim brakes.
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Weight18.6 lbs  
FrameAluminum
SuspensionRigid
ForkAluminum
Wheels20″ Aluminum
Drivetrain1 × 8
GroupsetAltus
BrakesTektro Rim
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Specs
Build
Frame

6061 T6 heat treated Aluminum alloy, seat tube 11" (280mm)

Fork

6061 T6 heat treated Aluminum alloy, seat tube 11" (280mm)

Bottom Bracket

Thun Shorty-ML-SL; square taper, 68/113.5

Headset

Neco, 1"1/8 semi-integrated threadless, Frog Bikes top cap

Stem

Aluminum, 1"1/8, 38mm, 4 bolt clamp

Handlebar

Alloy, 540mm width, 60mm rise, 25º sweep

Saddle

Frog Bikes child-specific saddle (small), steel rails

Seatpost

Aluminum, micro adjust, 27.2mm

TypeRigid

Pedals

Frog Bikes, eco-friendly rice husk & plastic composite, with reflectors, 9/16"

Groupset
Rear Derailleur

Shimano Altus, M310 OR Microshift, Mezzo, RD-M36S, short cage, 8-speed

Crank

Frog Bikes Patented,114mm, Aluminum straight arm cranks, 32T chainring, black

Shifters

FrogFitTechnology®, youth-specific 8-speed with short lever travel and ultraslick gear cable

Chain

KMC, 8-speed

Brakes

Tektro 836AL, Aluminum, linear pull

TypeTektro Rim

Brake Levers

Tektro JL510, Aluminum, easy reach

Wheels
Rims

Aluminum, 20", double wall, machined braking surface

Front Hub

Quando, Aluminum, sealed hub, QR, 20 hole

Rear Hub

Quando, Aluminum, sealed hub, QR, 20 hole, Shimano type 8/9spd free hub body

Tires

Kenda K154, 20"x1.5", City, (ETRTO/ISO 38-406)

Accessories
Fenders

Full length, resin, black

Rider Notes
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First added March 7

Last updated April 25

Not listed for 37 days