Trek Boys Precaliber 20" SS Bike Black

20" Kids Bike | Product Code: TB-222058

Out of Stock

Trek Kids' mountain bikes are the real deal, with light frames, knobby tyres, quality parts, durable construction, and dialled adjustable components that can grow with young riders.

Adventurous kids deserve a true, trail-ready bike that will take them down the road or off the road with confidence and control.

The frame and parts are dialled to fit kids right from the start Fun, kid-friendly details come standard Trek quality = safety and fun.

It's right for you if...

Your kid is ready to leave stabilisers behind, and you want to get them a fun, durable bike that they won't outgrow straight away. 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 Aluminium frame, one speed, both a rear and front hand brake, and dialled components designed to fit growing kids: an adjustable bar and stem, smaller-diameter grips, a padded adjustable saddle and an adjustable crank that keeps up with growth spurts.

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.

Why we love it

  • One speed is all you need! A simple set-up gives kids confidence and helps them stay in control
  • We all know that kids grow up fast, and our adjustable Dialed Fit system allows this bike to grow with them
  • 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
  • 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


weight 10.70 kg/23.60 lb
front hub Steel
crank Dialed adjustable length 120 mm - 140 mm, 32T
bottom bracket Sealed cartridge
cassette 18T cog
chain HV410
seatpost Steel, 27.2 mm
stem Bontrager alloy, 25.4 mm, 15-degree
grips Dialed, Kraton
headset Adjustable ball bearing, threadless
brakeset Alloy linear-pull, Dialed alloy levers
fork Dialed 20", high-tensile steel
frame 20" Dialed frame size, Alpha Silver Aluminium
handlebar Dialed 20" size, 40 mm rise
pedals Dialed 9/16", platform
rims 20" 32-hole alloy
saddle Dialed 20" size, padded
tires Bontrager Dialed 20x1.80"
rear hub Freewheel

*All specifications listed are subject to change without notice.


Weight 10.70 kg/23.60 lb
CRANK Dialed adjustable length 120 mm - 140 mm, 32T
Bottom Bracket Sealed cartridge
Cassette 18T cog
Chain HV410
Seatpost Steel, 27.2 mm
Stem Bontrager alloy, 25.4 mm, 15-degree
GRIPS Dialed, Kraton
Headset Adjustable ball bearing, threadless
Brakeset Alloy linear-pull, Dialed alloy levers
Frame Material Alloy
Fork Material Steel
Pedals Included Yes
Wheel Size 20"
Fork Dialed 20", high-tensile steel
FRAME 20" Dialed frame size, Alpha Silver Aluminium
Handlebar Dialed 20" size, 40 mm rise
PEDALS Dialed 9/16", platform
RIMS 20" 32-hole alloy
Saddle Dialed 20" size, padded
Tires Bontrager Dialed 20x1.80"
REAR HUB Freewheel
Bike Category Kid's

Bike Size


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