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Trek Precaliber 20- 2025

Trek Precaliber 20- 2025
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Precaliber 20 Coaster Brake will have your little rider begging to go out for a pedal on their first real big kid bike. It's a great transition model from training wheels. It has one speed, a coaster brake, and a saddle with an integrated handle that can be swapped out for a light mount. For kids ages 6-8, between 45-52? tall.

- One speed is all you need—a simple set-up gives kids confidence and helps them stay in control
- Coaster brakes are simple and intuitive for kids to use—they just pedal backwards to stop!
- You can replace the saddle's integrated handle with an integrated light mount to boost visibility on family adventures and solo excursions
- Like all Precaliber bikes, the frame is lower so it's easier for kids to stand over and hop on and off
- 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

Your kid is ready to leave training wheels behind, and you want to get them a fun, durable, bike that's simple to use. 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.

A lightweight Alpha Silver Aluminum frame, one speed, and a coaster brake. Plus, a kickstand and a saddle with an integrated handle that can be swapped out for an integrated taillight mount. Everything on this bike is built to last, so it'll still feel like new when handed down to younger siblings.

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.

Wheel size20" kids'
Seat tube (cm)25.5
Seat tube angle72.0°
Head tube length (cm)8.5
Head angle70.0°
Effective top tube (cm)44.5
Bottom bracket height (cm)23.8
Bottom bracket drop (cm)3
Chainstay length (cm)37.2
Offset (cm)4.2
Trail (cm)5.3
Wheelbase (cm)86.5
Standover (cm)47.6
Frame reach (cm)31.2
Frame stack (cm)40.6
SizeRider Height (cm)Rider Height (in)
20"114 - 132 3'9" - 4'4"


Frame Alpha Silver Aluminum, 20'' kids' frame size
Fork Kid's steel fork
Rims Alloy 20'', 32-hole, schrader valve
Hubs Front: Steel, 100mm, nutted axle Rear: Coaster brake, 19T, 110mm bolt-on
Tires Bontrager XR1, wire bead, 27 tpi., 20x2.25''
Bottom Bracket Square taper, 68mm, sealed cartridge
Crankset ProWheel alloy, 32T steel ring w/double guard, 127mm length
Chain HV410, 1/2x1/8
Brakes Alloy linear-pull
Brake Levers Kids', alloy
Handlebars Kids' steel, 25.4mm clamp, 40mm rise, 560mm width
Tape/Grips Kids' grip, 107mm width
Stem Bontrager Approved alloy, 25.4mm clamp, 15 degree rise, 60mm
Headset Adjustable ball bearing, threadless
Saddle Kids' padded, integrated seatpost, with handle
Pedals Kids' Satellite, 9/16 thread
Accessories & Extras Kickstand

* Subject to change without notice.