Product Details

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. We took to the books and designed a bike with child-specific touch points that withstand the development of young riders. The Jett is uniquely adjustable, perfectly proportional, and child-liftable—they’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.

  • We designed the Jett Single Speed to be uniquely adjustable with longer seatposts 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 aluminum frame, alloy fork, Pathfinder tires, and single-speed drivetrain make it one of the lightest kids’ bikes on the market.
  • The Fit Tool is your go-to resource to get your Jett perfectly dialed in to the way you ride. Access it here on the Specialized site (Opens in new window)

About Specialized
As their motto says, “Made for riders, by riders”. Specialized made the first production mountain bike in 1974, and since then they have been industry leaders. From lightweight carbon race bikes, innovative kids bikes, class leading e-bikes and tyres & accessories, Specialized continue to push boundaries.

Stem 3D Forged Aluminum, 35mm length, 6 degree rise, 25.4mm clamp diameter
Saddle Kids Bridge Saddle, 130mm
SeatPost Alloy, 2-bolt, 14mm offset, 27.2mm, 265mm length
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
Front Brake V-brake w/ tool-less reach adjust brake lever
Rear Brake V-brake w/ tool-less reach adjust brake lever
Bottom Bracket Square taper, Plastic cups, 113mm spindle
Cassette 18t Freewheel
Chain KMC Z1 EPT (Anti-Rust)
Crankset Forged Alloy, Square Taper, Single Speed, w/ Chainguard
Chainrings 34T
Pedals Nylon platform w/ reflectors
Rims Alloy, 14mm Depth, 23mm Internal Width, 28H
Front Hub Alloy, Loose Ball Bearings, Bolt type, 100mm Spacing, 28H
Spokes Stainless, 14g
Rear Hub Alloy, Loose Ball Bearings, Bolt type, 110mm Spacing, 28H
Front Tire Pathfinder Sport, 20x2.0"
Rear Tire Pathfinder Sport, 20x2.0"
Inner Tubes Schrader, 32mm valve
Seat Binder Bolt-type, 31.8mm
Frame A1 Premium Butted Alloy, unisex frame, internal cable routing, 110x10mm dropouts
Fork A1 Premium Butted Alloy, Alloy steerer, V-Brake
* Specifications subject to change without notice.
  20"
Crank Length 115mm
Handlebar Width 580mm
Stem Length 35mm
Saddle Width 130mm
Seatpost Length 280mm
Stack 398mm
Reach 295mm
Head-Tube Length 100mm
Head-Tube Angle 69°
B-B Height 229mm
B-B Drop 30mm
Trail 57mm
Fork Length (full) 305mm
Fork Rake/Offset 40mm
Front-Centre 480mm
Chain-Stay Length 350mm
Wheelbase 828mm
Top-Tube Length (horizontal) 417mm
Bike Stand-Over Height 510mm
Seat-Tube Length 290mm
Seat-Tube Angle 73°
Product Code 92722-4120
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$490.00
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Product Details

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. We took to the books and designed a bike with child-specific touch points that withstand the development of young riders. The Jett is uniquely adjustable, perfectly proportional, and child-liftable—they’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.

  • We designed the Jett Single Speed to be uniquely adjustable with longer seatposts 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 aluminum frame, alloy fork, Pathfinder tires, and single-speed drivetrain make it one of the lightest kids’ bikes on the market.
  • The Fit Tool is your go-to resource to get your Jett perfectly dialed in to the way you ride. Access it here on the Specialized site (Opens in new window)

About Specialized
As their motto says, “Made for riders, by riders”. Specialized made the first production mountain bike in 1974, and since then they have been industry leaders. From lightweight carbon race bikes, innovative kids bikes, class leading e-bikes and tyres & accessories, Specialized continue to push boundaries.

Stem 3D Forged Aluminum, 35mm length, 6 degree rise, 25.4mm clamp diameter
Saddle Kids Bridge Saddle, 130mm
SeatPost Alloy, 2-bolt, 14mm offset, 27.2mm, 265mm length
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
Front Brake V-brake w/ tool-less reach adjust brake lever
Rear Brake V-brake w/ tool-less reach adjust brake lever
Bottom Bracket Square taper, Plastic cups, 113mm spindle
Cassette 18t Freewheel
Chain KMC Z1 EPT (Anti-Rust)
Crankset Forged Alloy, Square Taper, Single Speed, w/ Chainguard
Chainrings 34T
Pedals Nylon platform w/ reflectors
Rims Alloy, 14mm Depth, 23mm Internal Width, 28H
Front Hub Alloy, Loose Ball Bearings, Bolt type, 100mm Spacing, 28H
Spokes Stainless, 14g
Rear Hub Alloy, Loose Ball Bearings, Bolt type, 110mm Spacing, 28H
Front Tire Pathfinder Sport, 20x2.0"
Rear Tire Pathfinder Sport, 20x2.0"
Inner Tubes Schrader, 32mm valve
Seat Binder Bolt-type, 31.8mm
Frame A1 Premium Butted Alloy, unisex frame, internal cable routing, 110x10mm dropouts
Fork A1 Premium Butted Alloy, Alloy steerer, V-Brake
* Specifications subject to change without notice.
  20"
Crank Length 115mm
Handlebar Width 580mm
Stem Length 35mm
Saddle Width 130mm
Seatpost Length 280mm
Stack 398mm
Reach 295mm
Head-Tube Length 100mm
Head-Tube Angle 69°
B-B Height 229mm
B-B Drop 30mm
Trail 57mm
Fork Length (full) 305mm
Fork Rake/Offset 40mm
Front-Centre 480mm
Chain-Stay Length 350mm
Wheelbase 828mm
Top-Tube Length (horizontal) 417mm
Bike Stand-Over Height 510mm
Seat-Tube Length 290mm
Seat-Tube Angle 73°