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Jett 16 Single Speed

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Jett 16 Single Speed

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—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.

Technical Specifications

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Drivetrain

Cassette

16t Freewheel

Chain

KMC Z1 EPT (Anti-Rust)

Crankset

Forged Alloy, Square Taper, Single Speed, w/ Chainguard

Chainrings

26T

Bottom Bracket

Square taper, Plastic cups, 113mm spindle

Cockpit

Saddle

Kids Bridge Saddle, 130mm

Stem

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

Handlebars

Alloy Mini Rise, Double Butted, 40mm Rise, 5-degree Backsweep, 580mm Width, 25.4mm Clamp Diameter, 19mm Bar End Diameter

Grips

Specialized Trail Grips, 19mm bar end diameter, Slip-On

SeatPost

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

Frameset

Frame

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

Fork

A1 Premium Butted Alloy, Alloy steerer, V-Brake

Seat Binder

Bolt-type, 31.8mm

Wheels & Tires

Rims

Alloy, 14mm Depth, 23mm Internal Width, 28H

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 Tire

Pathfinder Sport, 16x2.0"

Rear Tire

Pathfinder Sport, 16x2.0"

Inner Tubes

Schrader, 32mm valve

Accessories

Pedals

Nylon platform w/ reflectors

Brakes

Front Brake

V-brake w/ tool-less reach adjust brake lever

Rear Brake

V-brake w/ tool-less reach adjust brake lever

* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.

Geometry

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16"
Stack338mm
Reach270mm
Head-Tube Length80mm
Head-Tube Angle69°
B-B Height180mm
B-B Drop25mm
Trail52mm
Fork Length (full)260mm
Fork Rake/Offset25mm
Front-Center418mm
Chain-Stay Length280mm
Wheelbase696mm
Top-Tube Length (horizontal)386mm
Bike Stand-Over Height420mm
Seat-Tube Length250mm
Seat-Tube Angle71°
Geometry

Rider Reviews

  • 4.2
  • 23 Reviews

Great little bike

My daughter has resisted learning to ride a bike. She is 47" tall so definitely almost too big for this bike. I hesitated buying a bike she will be almost too big for, but I wanted her to be able to feel confident that she wouldn't wipe out b/c of the weight & size of the bike. She spent 30-45 min the first day just gliding on it with her legs hanging over the pedals, then the 2nd day she told me not to help and figured out the pedals in less than 30 minutes. Unlike some other bikes, the handle bars are lower, which makes the bike look even smaller on her, but provided her more control. Only complaint is she said the bike seat isn't comfortable so i'll be looking for a cushion or replacement seat (took off a star for the seat). Happy with the price point (with sale) and quality of bike and will pass it on to her younger sibling when she's done. We will likely move her up to a 20" soon.


Name:
Melissa

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Perfect

Great bike. We transitioned from the hotwalk to this bike and my son had no problems at all. Quality is amazing the geometry is perfect. It’s awesome seeing the thought put into this bike for younger riders. I have had many friends purchase this bike after seeing my son on it and have the same experience.


Name:
Jason

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Excellent value but too tall

My 4 year old is above average height for his age and is ready to transition from his kick bike. The bike would be an excellent fit except he can barely tiptoe with the seat post dropped to the clamp. A kid learning to pedal should be able to flat foot to be confident and comfortable. This seems like it would be an easy fix for specialized as there is an extra 2” above the weld on the seat tube and at full extension the seat height is ridiculously high. Otherwise excellent bike quality for a super price, I would have given 5 stars if my kid wasn’t discouraged from the stand over. Last suggestion, this is a kids bike maybe some fun colors?


Name:
Gabe

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Perfect Big Kid Bike

My 4 year old boy was 40'' tall on his birthday. With the seat all the way down, and the handle bars adjuted in, the bike fits hime perfectly. This is our second premium 16'' "mountian bike." My older boy had another brand. This bike is light years ahead of our old one. Aeronomical frame lets him in and out of cockpit easily. Nice length to the crank allows him to go fast enough and easily ride uphill, and you can tell the pedals are for a kids bike. They are bigger than his first bike and smaller than mine, perfect. The handlebars have multiple settings to pull the bars closer to the rider and the brakes! Awesome brakes! It is so hard to walk the line of tiny hands being able to pull them, and still deliver enough stopping power. This bike does it. He made the transition from coaster brakes to hand in 30 seconds. He is actually much better at the hand brakes then coaster. Then the Specialized Logoed tires are so cool. This bike made my boy a better rider. Just buy it!


Name:
VAUGHN

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What you expect, but hard for short leg kids

My 3 year old is 40 inches tall with a long torso and shorter legs and can rip around on a Strider, but the Jett is still to tall for him to sit on the seat and touch the ground with his feet even at the lowest position. That makes learning to ride it nearly impossible in our experience. I'm sure it will be better once his legs are taller than 19-20 inches. With only a 16-17in stand over with a diaper in the way we probably need a few weeks to learn to ride or to wait for a leg growth spurt.


Verified Buyer

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Name:
DANA

Helpful?

Awesome bike

Cool bike. Seems like a good middle ground which has good features, decently light weight and at a good price. I would recommend, but for other bikes in this category the seat height is a bit tall for a new rider which is about 19.75 inches at the lowest. My son was in the recommended range at about 39 inches tall, but would not be able to touch the ground. No body can learn how to bike if they can’t touch the ground. I bought a mini pivotal race seat and post and with that it’s 18 inches off the ground. With being advertised as a beginning bike that will grow with your child, it seems to lack the capability for the earlier riders. Again nice bike as long as you know the most important part of a first real bike is if the seat can go low enough to learn how to bike


Name:
Benjamin

Helpful?

Child bike

Prompt delivery and everything as expected

Would Recommend?
Yes!

Verified Buyer

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Name:
Neil H.

Helpful?

Jett 16 inch

Perfect bike for my 4 year old grandson. The quality is top notch and he will get a couple of years on it as he grows, the the little sister will get it and he will move on to the 20 inch Specialized. And did I mention he loves it.

Would Recommend?
Yes!

Verified Buyer

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Name:
Norm S.

Helpful?

Nice bike, but don't trust size chart

Great bike, very nicely made. But too big for my 4 year old that is 39". His feet do not touch the ground. Now we have an expensive bike that can not be used.

Would Recommend?
Yes!

Name:
Brittney

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Kids first “real” bike.

Was a little bit smaller than I anticipated but still a very well built bike. The components and quality are exactly what you would expect from specialized and the price point made it a no brainer. The kid LOVES it as her first bike without training wheels.

Would Recommend?
Yes!

Verified Buyer

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Name:
Steven B.

Helpful?