Trek Precaliber 12 Kids Bike



  • Lightweight aluminum frame
  • Coaster Brake
  • Durable, built to last, so it’ll still feel like new when handed down to younger siblings
  • Great for riding on paved paths, around the neighborhood, and light off-road trails too

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.

It’s finally time to teach your little one to ride! You want to make it a great memory, so you’re looking for a bike that’s comfortable, durable, and fun. Simplicity is key, and you want to be able to pop off the training wheels easily when the time is right.

This kid-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 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.


Alpha Silver Aluminum, 12'' kids' frame size


Steel, 12'', threadless 1'' steerer


Front: Steel, 84mm bolt-on
Rear: Coaster brake, 16T, 120mm bolt-on


Alloy 12'', 20-hole, schrader valve


Bontrager XR1, wire bead, 27 tpi., 12×2.25''


Alloy, 26T, chainguard, 70mm length

Bottom Bracket

Square taper, 68mm, sealed cartridge


HV410, 1/2×1/8


Kids' Satellite, 9/16 thread


Kids' padded, integrated seatpost, with handle


Kids' steel, 25.4mm clamp, 80mm rise, 500mm width


Kids' grip, 107mm width


Bontrager Approved alloy, 25.4mm clamp, 15 degree rise, 50mm


1'' threadless

Training Wheels

Training Wheel Trek Adjustable 12''-16''


6.98 kg / 15.38 lbs

Bike Colors

Bike Sizes


Frame Material


Wheel Size


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