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The Precaliber 20 Fixed Wheel is a rugged kids' bike for young adventurers. It has a lightweight frame and quality components. Ideal For kids aged 6–8, between 45–52˝ (114–132 cm) tall.
The Precaliber 20 Fixed Wheel is a rugged kids' bike for young adventurers. It has a lightweight frame and quality components. Ideal For kids aged 6–8, between 45–52˝ (114–132 cm) tall.

Trek Precaliber 20 Inch Free Wheel Unisex Kids Bike 2022 in Black

£260.00 £325.00 20% off
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Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!


With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined
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Any item, except food or face masks, can be returned to us for any reason within 90 days, provided that the item has not been used or fitted and is returned in its original packaging with valid proof of purchase.

Online or in-store purchases can both be returned to any store free of charge or can be returned by post after completing the online returns form. If you are returning an item due to a fault, we will refund your postage.

If you wish to return your bike to us, please keep the box it arrived in and let us know using the returns form and we will arrange collection.

Customer Returns Form

If you wish to cancel, return or exchange an order please fill in the form below and a member of staff will be in contact within 48 hours to assist. Returns can be processed quicker if all required information is added.

Terms & Conditions

Items must be returned in their original packaging and be unused. Refunds will be issued once the products have been received and inspected.

Click & Collect customers can buy with confidence knowing that they can review the item before deciding whether it is right for you before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away, or you still have up to 90 days to return it if you are still unsure.

Please note:

1. If the items we have sent you are faulty, damaged or not as we described, we will cover the cost of collection and the delivery of the correct item.

2. If we have delivered the correct bike but upon inspection, you decide the bike is not the one for you, we will charge you £24.99 for collection. If you do not have the original box, we will charge you an additional £15 to provide one.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase.

We are unable to offer a refund without a valid receipt.

Trek Precaliber 20 Inch Free Wheel Unisex Kids Bike 2022 in Black




The Trek Precaliber 20 Fixed Wheel children’s bike 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 stabilisers. It has one speed, two hand brakes and a saddle with an integrated handle that can be swapped out for a light mount. One speed is all you need – a simple set-up gives kids confidence and helps them stay in control. Everything on this bike is built to last, so it'll still feel like new when handed down to younger siblings.

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.

The Precaliber 20 Fixed Wheel 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. This bike is ideal for kids aged 6–8, between 45–52˝ (114–132 cm) tall.

Key Features & Benefits:

  • Aluminium Frame:Lightweight, durable & easy to manoeuvre.
  • Single Gear: Keeps things simple, so your child can ride more confidently.
  • Alloy V-Brakes:With kid sized levers so your child can control their speed whilst learning to ride.

Full Specification:

  • Frame: Alpha Silver Aluminium, 20" kids' frame size
  • Fork: Steel, 20", threadless 1-1/8" steerer
  • Number of Gears: 1
  • Gear Shifters: N/A
  • Chainset: ProWheel alloy, steel ring w/double guard, 127 mm length
  • Chainrings: 32T
  • Rear Cassette: 18T freewheel
  • Chain: HV410, 1/2x1/8
  • Front Derailleur: N/A
  • Rear Derailleur: N/A
  • Bottom Bracket: Square taper, 68 mm, sealed cartridge
  • Pedals: Kids' Satellite, 9/16 thread
  • Rims: Alloy 20", 32-hole, Schrader valve
  • Front Hub: Steel, 100 mm bolt-on
  • Rear Hub: Steel Freewheel, 110 mm bolt-on
  • Front Tyre: Bontrager XR1, wire bead, 27 tpi, 20x2.25"
  • Rear Tyre: Bontrager XR1, wire bead, 27 tpi, 20x2.25"
  • Brakes: Alloy linear-pull
  • Handlebars: Kids' steel, 25.4 mm clamp, 40 mm rise, 560 mm width
  • Handlebar Grips or Tape: Kids' grip, 107 mm width
  • Headset: Adjustable ball bearing, threadless
  • Stem: Bontrager Approved alloy, 25.4 mm clamp, 15-degree rise, 60 mm
  • Saddle: Kids' padded, integrated seat post, with handle
  • Seatpost: Integrated Seat Post
  • Accessories: Kickstand
  • Weight: 9.53 kg / 21.01 lb
  • Inside Leg or Age Range: Ages 6–8, between 45–52˝ (114–132 cm) tall.

Trek Children’s Bikes: Precaliber Family

Technical Information

Geometry for Trek Precaliber Single Speed 20" Wheel Kids Bike. 

All measurements provided in cm unless otherwise stated. 

Trek Precaliber Single Speed 20


Dimensions in mm  
Wheel Size 20"
A. Seat Tube  25.5
B. Seat Tube Angle 72.0°
C. Head tube Length 8.5
D. Head Angle 70.0°
E. Effective Top Tube 44.5
F. Bottom Bracket Height 23.8
G. Bottom Bracket Drop 3
H. Chainstay Length 37.2
J. Trail 5.3
K. Wheelbase 86.5
L. Standover 47.6
M. Frame Reach 31.2
N. Frame Stack 40.6


Sizing Information
Trek Sizing Guide
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