Trek Precaliber 16: The perfect bike for learning to pedal
Discover the fun on two wheels
The Trek Precaliber 16 Freewheel is the ideal choice for children learning to ride a bike. Thanks to its simple and intuitive design, with a single speed and two hand brakes, young cyclists can become familiar with the controls safely and naturally. The seat features an integrated handle, perfect for helping the child during their first pedaling, while the training wheels, easy to install and remove without tools, provide extra support during the learning process.
Designed for children aged 4 to 5 years and with a height between 100 and 116 cm, the Precaliber 16 ensures a safe, stable, and fun riding experience.
 
Main features
- Easy to use: single-speed setup for simple and intuitive control 
- Safety and control: lever brakes that help the child get used to traditional controls 
- Seat with integrated handle: for extra support during the first rides 
- Tool-free removable wheels: easy installation for a quick transition to independent driving 
 
Technical specifications
Frame kit
- Frame: Lightweight alloy for children, size 16", with cantilever brake supports 
- Fork: Durable steel, with supports for cantilever brakes 
Wheels
- Front hub: Steel, 100 mm bolted 
- Rear hub: Steel, 24T 
- Wheel: 16" League, 28 holes 
- Tires: Bontrager XR1, wire bead, 27 TPI, 16x2.25" 
- Max. tire dimensions: 16x2.25" 
Transmission
- Crankset: Alloy with 26T steel chainring, chain guard, length 89 mm 
- Central movement: Square cone, 68 mm, sealed cartridge 
- Freewheel: 18 teeth 
- Chain: HV410, 1/2x1/8 
- Pedals: Child's satellite, threading 9/16 
- Max crown size: 1x: 30T 
Components
- Sella: Padding for children, integrated seat post with handle 
- Handlebar: Steel for children, 25.4 mm clamp, rise 80 mm, width 500 mm 
- Handles: Child grip, width 107 mm 
- Handlebar clamp: Bontrager Approved alloy, 25.4 mm clamp, 15° rise, 50 mm length 
- Steering series: Adjustable ball bearing 
- Brakes: A linear pull alloy, suitable for 16" wheels. 
- Brake lever: Ergonomic design for children, made of alloy 
Accessories
Weight
- Weight: 8.37 kg / 18.46 lbs 
- Weight limit: The bike supports a maximum total weight of 36 kg (80 lbs), including the bicycle, rider, and load. 
 
 
Please note
Technical specifications may change without notice based on component availability.
The product images are purely indicative and may not exactly reflect the described features.
 
The Trek Precaliber 16 is the ideal companion for the first steps into the world of two wheels, designed to offer safety, fun, and ease of use.
  
                           
                          
                            
                               Do you want to receive your bike ready for use? Don't forget to add the bike assembly service at the time of purchase! Discover all the details here: Francesconi bike assembly
                             
                          
                          
                            
                              
A Complete Guide to Bike Sizes
 Foreword: Not all bike sizes are the same
 Each type of bike has a specific frame and often uses a different size scale. For example, a road bike with a 54cm frame might be considered a medium size by one brand, but a large by another.
 Bicycle adjustment margins
 Some types of bikes, like gravel bikes, offer a wide range of adjustments, adapting to different body types. Other models, however, have limitations in this regard. This is an important aspect to consider.
 How to use size charts
 We've created a simple guide to help you find the right bike size:
-  Check out our size charts for each bike type.
-  Learn more with specific tips to help you make the right choice.
 Size Charts: Find Your Perfect Bike
 Gravel and road bikes
 Sizes are based on the length of the top tube (in cm), which determines the reach of the bike.
| Cut | Recommended height | Horizontal tube length | 
| XS | Up to 157 cm | 48-50 cm | 
| S | 157-167 cm | 50-53 cm | 
| M | 168-178 cm | 53-56 cm | 
| THE | 178-185 cm | 56-58 cm | 
| XL | Over 185cm | 58-62 cm | 
 For gravel, measurements may vary slightly due to different geometries, but remain similar.
 Mountain bike
 MTBs are measured in inches, based on the seat tube.
| Cut | Recommended height | Size (in inches) | 
| XS | Up to 157 cm | 14"-16" | 
| S | 157-167 cm | 15"-17" | 
| M | 168-178 cm | 16"-19" | 
| THE | 178-185 cm | 18"-20" | 
| XL | Over 185cm | 20"-23" | 
 Sizes also vary depending on the type of MTB: full-suspension , hardtail or fat bike .
 Children's bikes
 The size depends on the size of the wheels, often associated with age:
| Age | Wheel Size | 
| 1-3 years | 12" | 
| 2-4 years | 14" | 
| 4-6 years | 16" | 
| 5-8 years | 20" | 
| 8-10 years | 24" | 
| Over 10 years | 26"/27.5" | 
 What to do with half measures?
 If you are between two sizes:
- 
 Comfort : Choose the larger size.
- 
 Performance : Go for the smaller size.
 Final tips for choosing
- 
 Consult the manufacturer's instructions : Always check the brand's guidelines.
- 
 Ask an expert : a specialized workshop can help you choose based on your height, ideal reach and goals.
- 
 Test the bike : If possible, test the model you intend to purchase.