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  • Precaliber 20
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It's right for you if...

Your kid is ready to leave training wheels behind, and you want to get them a fun, durable, bike that's simple to use. You don't want to settle for a big box brand, because you know the value of a high-quality bike that will keep your kid confident and in control.

The tech you get

A lightweight Alpha Silver Aluminum frame, one speed, and a coaster brake. Plus, a kickstand and a saddle with an integrated handle that can be swapped out for an integrated taillight mount. Everything on this bike is built to last, so it'll still feel like new when handed down to younger siblings.

The final word

This bike is the perfect choice for young riders who want to transition from a little kid bike to a big kid bike, with a simple, quality frame that will keep them upright and smiling while they ride at the park with friends or on the local bike paths with your family.

The Walkthrough

favorite_borderWhy you'll love it

  1. One speed is all you need—a simple set-up gives kids confidence and helps them stay in control
  2. Coaster brakes are simple and intuitive for kids to use—they just pedal backwards to stop!
  3. You can replace the saddle's integrated handle with an integrated light mount to boost visibility on family adventures and solo excursions
  4. Like all Precaliber bikes, the frame is lower so it's easier for kids to stand over and hop on and off
  5. You shouldn't buy your kid's bike where you buy your cereal—Unlike big box brands, Trek kids' bikes are assembled by people who know bikes

How to: teach your kid to ride a bike

"Teaching your child to ride a bike should be a special experience. With the right knowledge, the right tools, and the right approach, you can build a memory that you and your child will look back on forever. This is everything you need to help your little one make a smooth transition from training wheels to a two-wheeler."

Watch the video

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Features

Alpha Aluminum frame

Alpha Aluminum frame

Trek's lightweight, high-performance aluminum is durable and rustproof.

Coaster brake

Coaster brake

Speed control is all in the legs for the little ones.

Hand brakes

Hand brakes

Confident stopping for youngsters who are ready to control their speed with their hands.

Singlespeed

Singlespeed

No shifting necessary, so beginners can learn balance and basic riding skills.

Specifications

*spec applies to all sizes unless otherwise noted

Frameset
Frame Alpha Silver Aluminum, 20'' kids' frame size
*Fork Size: S
Steel, 20'', threadless 1-1/8'' steerer
Size: S
Kid's steel fork
Wheels
Hub front Steel, 100mm bolt-on
Hub rear Coaster brake, 19T, 110mm bolt-on
Rim Alloy 20'', 32-hole, schrader valve
Spokes 14g stainless steel
Tire Bontrager XR1, wire bead, 27 tpi., 20x2.25''
Drivetrain
*Crank Size: S
ProWheel alloy, 32T steel ring w/double guard, 127mm length
Size: S
Alloy, 32T, chainguard, 140mm length
Bottom bracket Square taper, 68mm, sealed cartridge
Chain HV410, 1/2x1/8
Pedal Kids' Satellite, 9/16 thread
Components
Saddle Kids' padded, integrated seatpost, with handle
Handlebar Kids' steel, 25.4mm clamp, 40mm rise, 560mm width
Grips Kids' grip, 107mm width
Stem Bontrager Approved alloy, 25.4mm clamp, 15 degree rise, 60mm
Headset Adjustable ball bearing, threadless
Brake Alloy linear-pull
Brake lever Kids', alloy
Accessories
Kickstand Kickstand
Weight
Weight 9.51 kg / 20.97 lbs
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 80 pounds (36 kg).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based off Trek pre-production painted frames at time of publication. Weights may vary in final production.

Sizing & fit

The charts below show our recommended sizes based on height, but there are some other factors, like arm and leg length, that determine a great fit. That’s why you’ll see some overlap in our recommendations. Not every rider who’s 5´8˝, for example, will fit on the same size bike. The best way to find your perfect fit is to consult the experts at your local Trek retailer.

 

Rider Height

All measurements provided in cm unless otherwise noted.

Frame size number Wheel size A — Seat tube B — Seat tube angle C — Head tube length D — Head angle E — Effective top tube F — Bottom bracket height G — Bottom bracket drop H — Chainstay length J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack
20 20" kids' 25.5 72.0° 8.5 70.0° 44.5 23.8 3.0 37.2 5.3 86.5 47.6 31.2 40.6

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