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Precaliber 12


The 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 aged 3-4, between 36–40˝ (91–102 cm) tall.

[2022] Model 580864

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It's right for you if...

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.

The tech you get

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 aluminium frame is easy for your little one to manoeuvre.

The final word

You want to make sure that 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.

Why you'll love it

The Walkthrough

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Alpha Aluminium Frame

Trek’s high-performance Alpha Aluminium is shaped and tuned for unmatched ride quality.

Coaster Brake

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

Single Speed

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


*spec applies to all sizes unless otherwise noted

FrameAlpha Silver Aluminium, 12″ kids’ frame size
ForkSteel, 12″, threadless 1″ steerer
Hub frontSteel, 84 mm bolt-on
Hub rearCoaster brake, 16T, 120 mm bolt-on
RimAlloy 12″, 20-hole, Schrader valve
TyreBontrager XR1, wire bead, 27 tpi, 12×2.25″
CrankAlloy, 26T, chainguard, 70 mm length
Bottom bracketSquare taper, 68 mm, sealed cartridge
ChainHV410, 1/2×1/8
PedalKids’ Satellite, 9/16 thread
SaddleKids’ padded, integrated seat post, with handle
HandlebarKids’ steel, 25.4 mm clamp, 80 mm rise, 500 mm width
GripsKids’ grip, 107 mm width
StemBontrager Approved alloy, 25.4 mm clamp, 15-degree rise, 50 mm
Head set1″ threadless
Training wheelTraining Wheel Trek Adjustable 12″-16″
ExtrasTraining Wheel Trek Adjustable 12″-16″
Weight6.98 kg / 15.38 lb
Weight limitThis bike has a maximum total weight limit (combined weight of bicycle, rider,and cargo) of 36 kg (80 lb).

Sizing & Tech

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on are for general comparison purposes only. To find your perfect fit, visit an authorised retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.

All measurements provided in cm unless otherwise stated.

Bike Tech

2022 Precaliber 12

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