Jett 20" Single Speed

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Kids move fast, and grow faster. At times, it can seem like there’s a small window for the perfect bike fit. The right bike for a young rider is a delicate balance between too small, too big, and a short-lived just right. If we’re going to inspire the next generation of riders, we need to keep kids comfortably riding longer.

The Jett is designed so that you’ll never fear the growth spurts. We did our homework to understand how kids grow—spoiler alert, kids’ arms and legs grow more rapidly than their torso. Designed is a bike with child-specific touch points that withstand the development of young riders. The Jett is uniquely adjustable, perfectly proportional, and child-liftable—you’ll always be set to Jett.

The Jett Single Speed features an adjustable handlebar that allows kids to fine tune reach as their arms grow. The narrower saddle and grips were informed by a Retül study on kids to be the appropriately size -with handbrakes on both the 16" and 20". And what’s more, we designed the frame and reviewed every component to make the Jett one of the lightest bikes on the market. You’re going to have to beg them to get off this bike.

Specialized designed the Jett Single Speed to be uniquely adjustable with longer seat posts and adjustable handlebars so kids can dial-in the perfect riding position as they grow.

Every detail of the Jett Single Speed—including the 130mm Bridge saddle, narrower-diameter grips, and short-reach, tool-less adjustable brake levers—was informed by Retül data from a kids’ research group to be perfectly proportional for young riders.

A lightweight bike is simply more fun and the Jett Single Speed’s all-new A1 aluminium frame, alloy fork, Pathfinder tyres, and single-speed drivetrain make it one of the lightest kids’ bikes on the market.

Specifications:

Frame

A1 Premium Butted Alloy, unisex frame, internal cable routing, 110x10mm dropouts

Fork

A1 Premium Butted Alloy, Alloy steerer, V-Brake

Stem

3D Forged Aluminum, 35mm length, 6 degree rise, 25.4mm clamp diameter

Handlebars

Alloy Mini Rise, Double Butted, 60mm Rise, 5-degree Backsweep, 580mm Width, 25.4mm Clamp Diameter, 19mm Bar End Diameter

Grips

Jett Body Geometry, 19mm Internal Diameter, lock-on

Seat Post

Alloy, 2-bolt, 14mm offset, 27.2mm, 280mm length

Seat Post Collar

Bolt-type, 31.8mm

Front Brake

V-brake with tool-less reach adjust brake lever

Rear Brake

V-brake with tool-less reach adjust brake lever

Cassette

18t Freewheel

Chain

KMC Z1 EPT (Anti-Rust)

Crankset

Forged Alloy, Square Taper, Single Speed, with chainguard

Chainrings

34T

Bottom Bracket

Square taper, Plastic cups, 113mm spindle

Rims

Alloy, 14mm depth, 23mm internal width, 28-hole

Front Hub

Alloy, Loose Ball Bearings, Bolt type, 100mm Spacing, 28H

Rear Hub

Alloy, Loose Ball Bearings, Bolt type, 110mm Spacing, 28H

Spokes

Stainless, 14g

Front Tyre

Pathfinder Sport, 20x2.0"

Rear Tyre

Pathfinder Sport, 20x2.0"

Inner Tubes

Schrader, 32mm valve

Saddle

Kids Bridge Saddle, 130mm

Pedals

Nylon platform with reflectors

Sizing Guide:

The Jett 20" suits young riders measuring between 102cm to 139cm in height.