Trek Precaliber 12 Kids Bike 2026

Precaliber 12 is the perfect first bike for little riders who are ahead of the curve and ready for two wheels at a younger age than most. It has a handle built into the saddle so you can guide them as they ride, and tool-free training wheels that are super easy to install and remove. It's a great fit for kids ages 3-4, between 36-40˝ tall.

Your kid may be young and small, but they're ready to ride! You want to make their first real bike experience a great one with a bike that's comfortable, durable, and fun.

This toddler-friendly bike has a handle integrated right into the saddle so you can help guide your child while they ride, plus a coaster brake and tool-less training wheels that can be installed and removed at the turn of a dial. Plus, the lightweight aluminum frame is easy for your little one to maneuver.

You want to make sure your child's first bike is comfortable, durable, and fun. Each of our bikes, all the way down to the smallest size, is built to our highest standards, so you can feel confident when you choose Trek for your family.

This bike is a memory-maker: seeing your child ride their bike for the first time is something you'll never forget
This bike is hand-me-down heaven: it's built to last, so younger siblings can inherit this bike and it'll still feel like new
Investing in a kids' bike from an established bike brand is worth it—Trek kids' bikes are designed and assembled by people who know bikes
Like all Precaliber bikes, the frame is lower so it's easier for kids to stand over and hop on and off

SPECIFICATIONS

*Please note - spec applies to all sizes unless listed separately

Frameset
Frame Alpha Silver Aluminum, 12'' kids' frame size
Fork Steel, 12'', threadless 1'' steerer

Wheels
*Hub rear Size: 12
Steel, 84mm bolt-on
Size: 12
Coaster brake, 16T, 120mm bolt-on
Rim Alloy 12'', 20-hole, schrader valve
Tire Bontrager XR1, wire bead, 27 tpi., 12x2.25''
Max tire size 12x2.25"

Drivetrain
Crank Alloy, 24T steel ring, chainguard, 70mm length
Bottom bracket Square taper, 68mm, sealed cartridge
Chain HV410, 1/2x1/8
Pedal Kids' Satellite, 9/16 thread
Max chainring size 1x: 30T

Components
Saddle Kids' padded, integrated seat post, with handle
Handlebar Kids' steel, 25.4 mm clamp, 80 mm rise, 500 mm width
Grips Kids' grip, 107mm width
Stem Bontrager Approved alloy, 25.4 mm clamp, 15-degree rise, 50 mm
Headset Adjustable ball bearing

Accessories
Training wheel Training Wheel Trek Dialed 12''

Weight
Weight 6.84 kg / 15.08 lbs
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 50 pounds (23 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, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.

12-Inch Kids Bikes

Trek Precaliber 12 Kids Bike 2026