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NEW 2019

Precaliber 20 6-speed Boy's

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$299.99 Model 21888
Precaliber 20 6-speed Boy's is a kid's mountain bike for young adventurers. A lightweight frame, knobby tires, and quality components like a front suspension fork, 6-speed gearing, and hand brakes are perfectly dialed to better fit small riders. For kids ages 6-8, between 45-52˝ tall.
Precaliber 20 6-speed Boy's is a kid's mountain bike for young adventurers. A lightweight frame, knobby tires, and quality components like a front suspension fork, 6-speed gearing, and hand brakes are perfectly dialed to better fit small riders. For kids ages 6-8, between 45-52˝ tall.
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It's right for you if...

You love exploring nature on your bike, and want your little adventurer to come along. You're looking for a high-quality kids' bike with adjustability, so your little shredder won't outgrow their new ride by the end of their first season.

The tech you get

A lightweight aluminum frame, a simple 6-speed drivetrain that's easy for kids to handle, and a front suspension fork to smooth out the bumps on the road and trail. Plus, it has parts designed specifically for kids, like a saddle, grips, pedals, and a Dialed adjustable crank that lets this bike keep up with growth spurts.

The final word

When you're young, just being outside is an adventure. Precaliber's mountain bike styling makes it the perfect vessel for young explorers. They may pretend to be scaling dangerous mountains or escaping terrible beasts, but with a high-quality build and components, you'll always have peace of mind.

favorite_borderWhy you'll love it

  1. We all know kids grow up fast, and our adjustable Dialed Fit system allows this bike to grow with them
  2. 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
  3. 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

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Features

Specifications

  • Frameset

    Frame
    20˝ Dialed frame size, Alpha Silver Aluminum
    Front suspension
    Dialed suspension, 35mm travel
  • Wheels

    Front hub
    Alloy
    Rear hub
    Alloy
    Rims
    20˝ 32-hole alloy
    Tires
    Bontrager XR1, 20x1.85˝
  • Drivetrain

    Shifters
    Shimano Tourney RS35, 6 speed twist
    Rear derailleur
    Shimano Tourney TY300
    Crank
    Dialed adjustable length 120mm - 140mm, 32T
    Bottom bracket
    Loose ball
    Cassette
    SunRun freewheel, 14-28, 6 speed
    Chain
    KMC Z50
    Pedals
    Dialed 9/16˝, platform
  • Components

    Saddle
    Dialed 20˝ size, padded
    Seatpost
    Steel, 27.2mm
    Handlebar
    Dialed 20˝ size, 40mm rise
    Grips
    Dialed, Kraton
    Stem
    Bontrager alloy, 25.4mm, 15 degree
    Headset
    Adjustable ball bearing, threadless
    Brakeset
    Alloy linear-pull, Dialed alloy levers
  • Weight

    Weight
    11.14 kg / 24.57 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.

Wheel size A Seat tube B Seat tube angle C Head tube length D Head angle E Effective top tube G Bottom bracket drop H Chainstay length I Offset J Trail K Wheelbase L Standover M Frame reach N Frame stack Saddle rail height minimum Saddle rail height maximum
20" kids' 25.5 72.0° 10.5 70.0° 44.5 1.5 37.2 4.2 4.8 87.3 46.9 30.6 42.9 59 73.5

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