TREK PRECALIBER 12 KID'S BIKE 2025 VIPER RED

Skip to product information
1 of 8

Product Details - Trek Precaliber 12 Kid's Bike 2025 Viper Red

The Precaliber 12 is the perfect first bike for little riders who are ahead of the curve and ready for two wheels at a younger age than most.

It has a handle built into the saddle so you can guide them as they ride, and tool-free training wheels that are super easy to install and remove. It's a great fit for kids aged 3-4, between 36–40" (91–102 cm) tall.

Key Features Trek Precaliber 12 Kid's Bike 2025

  • Aluminium Frame: Lightweight, durable & easy to manoeuvre.
  • Single Gear: Keeps things simple, so your child can ride more confidently.
  • Coaster Brake: Speed control is all in the legs whilst learning to ride.

Specification

  • Frame:  Alpha Silver Aluminium, 12" kids' frame silver
  • Fork: Steel, 12", threadless 1" steerer
  • Number of Gears: 1
  • Gear Shifters: N/A
  • Chainset: Alloy with chainguard
  • Chainrings: 24T
  • Rear Cassette: 16T cog
  • Chain: HV410, 1/2x1/8
  • Front Derailleur: N/A
  • Rear Derailleur: N/A
  • Bottom Bracket: Square taper, 68mm
  • Pedals: Kids' Satellite, 9/16 thread
  • Rims: Alloy 12", 20 hole
  • Front Hub: Steel, 12"
  • Rear Hub: Steel , 84 mm bolt-on
  • Front Tyre: Bontrager XR1, wire bead, 27 tpi., 12x2.25"
  • Rear Tyre: Bontrager XR1, wire bead, 27 tpi., 12x2.25"
  • Brakes: Coaster
  • Handlebars: Kid's steel,25.4 mm clamp, 80 mm rise, 500 mm width
  • Handlebar Grips: Kids' grip, 107mm width
  • Headset:  Adjustable ball bearing, threadless
  • Stem: Bontrager approved alloy, 25.4mm clamp, 15 degree rise, 50mm
  • Saddle: Kids' saddle, integrated seat post, with handle
  • Seatpost:  Steel, 27.2 mm
  • Accessories: Training Wheel Trek Adjustable 12"-16"
  • Weight: 6.84 kg / 15.08 lbs
  • Age Range: 3-4

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, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.


 

Size Guide

Trek Kid Bike Sizing Guide Size Guide

How we Build & Pack Your Bike

Aftercare

At All Terrain Cycles, we want you to ride with confidence every time. To ensure your bike or e-bike stays in peak condition, here are some essential safety and maintenance tips.

Bicycle Safety 

Always wear a helmet – Safeguard against head injuries by using a properly fitted, safety-certified helmet.

Perform pre-ride checks – Before each ride, verify that brakes, tyres, and gears are in good working order.

Stay visible – Utilise lights and reflective gear when cycling in low-light conditions.

Follow road rules – Ride responsibly and remain aware of your surroundings.

Aftercare for Your New Bike Initial Check-Up (First 50-100 miles)

Gear Adjustment – New cables may stretch slightly; have a qualified mechanic check and adjust them.

Brake & Wheel Check – Inspect brakes for wear and ensure wheels are aligned properly.

Lubrication – Apply chain oil and check bolt tightness to maintain smooth performance.

Tyre Pressure – Regularly monitor to prevent flats and enhance efficiency.

Pedals - Ensure pedals are still tight and correctly fitted.

Routine Maintenance (Every Few Weeks)

Chain Care – Clean and lubricate your chain to minimise wear and prolong its life.

Brake Safety – Check brake pads and responsiveness before each ride.

Tyre Inspection – Look for punctures and ensure correct air pressure.

Handlebar & Stem Alignment – Confirm they are tight and secure to prevent instability.

Frame Safety Check – Look for any signs of damage or cracks.

Pedals - Ensure pedals are still tight and correctly fitted.

Professional Check-Ups

Have your bike serviced at least once a year, or more frequently if you ride often.

Aftercare for Your New Electric Bicycle (e-Bike) Initial Check-Up (First 50-100 miles)

Battery Care – Fully charge your battery (if required) before the first ride and store it in a dry, moderate-temperature environment.

Avoid Overcharging – Unplug the charger once fully charged to extend battery life.

Pedals - Ensure pedals are still tight and correctly fitted.

Routine e-Bike Maintenance (Every Few Weeks)

Motor Inspection – Listen for unusual noises and ensure smooth operation.

Battery & Connection Checks – Inspect cables and connectors for dirt, moisture, or damage.

Pedals - Ensure pedals are still tight and correctly fitted.

Seasonal e-Bike Maintenance

Check Electrical Components – Ensure wires and connections are clean and secure.

Professional Servicing – Have your e-bike inspected at least once a year or every 500-1000 miles for optimal performance.

By following these aftercare guidelines, you’ll help ensure that your bicycle runs smoothly, lasts longer, and remains a joy to ride. Stay safe and enjoy the ride!

Read our full advice

If you have any problems or concerns: Contact All Terrain Customer Services on 01274 588488 or email sales@allterraincycles.co.uk

TREK PRECALIBER 12 KID'S BIKE 2025 VIPER RED
0 (0 Reviews)
Regular price £250.00
Regular price £250.00 Sale price £250.00
Price Match
If you find the same bike cheaper, we'll try to match the price.
More information

  • SKU: 5271577
  • Product ID: 160294
  • EPOS Code:
Est. Dispatch
Delivery Available
Finance Available
Family Owned Independent
Built by Cytech Mechanics
10% Off Accessories
We Accept Cyclescheme
View full details

Product Description

The Precaliber 12 is the perfect first bike for little riders who are ahead of the curve and ready for two wheels at a younger age than most.

It has a handle built into the saddle so you can guide them as they ride, and tool-free training wheels that are super easy to install and remove. It's a great fit for kids aged 3-4, between 36–40" (91–102 cm) tall.

Key Features Trek Precaliber 12 Kid's Bike 2025

  • Aluminium Frame: Lightweight, durable & easy to manoeuvre.
  • Single Gear: Keeps things simple, so your child can ride more confidently.
  • Coaster Brake: Speed control is all in the legs whilst learning to ride.

Specification

  • Frame:  Alpha Silver Aluminium, 12" kids' frame silver
  • Fork: Steel, 12", threadless 1" steerer
  • Number of Gears: 1
  • Gear Shifters: N/A
  • Chainset: Alloy with chainguard
  • Chainrings: 24T
  • Rear Cassette: 16T cog
  • Chain: HV410, 1/2x1/8
  • Front Derailleur: N/A
  • Rear Derailleur: N/A
  • Bottom Bracket: Square taper, 68mm
  • Pedals: Kids' Satellite, 9/16 thread
  • Rims: Alloy 12", 20 hole
  • Front Hub: Steel, 12"
  • Rear Hub: Steel , 84 mm bolt-on
  • Front Tyre: Bontrager XR1, wire bead, 27 tpi., 12x2.25"
  • Rear Tyre: Bontrager XR1, wire bead, 27 tpi., 12x2.25"
  • Brakes: Coaster
  • Handlebars: Kid's steel,25.4 mm clamp, 80 mm rise, 500 mm width
  • Handlebar Grips: Kids' grip, 107mm width
  • Headset:  Adjustable ball bearing, threadless
  • Stem: Bontrager approved alloy, 25.4mm clamp, 15 degree rise, 50mm
  • Saddle: Kids' saddle, integrated seat post, with handle
  • Seatpost:  Steel, 27.2 mm
  • Accessories: Training Wheel Trek Adjustable 12"-16"
  • Weight: 6.84 kg / 15.08 lbs
  • Age Range: 3-4

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, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.


 

Size Guide

Trek Kid Bike Sizing Guide Size Guide

How to Build Your Bike

Aftercare

At All Terrain Cycles, we want you to ride with confidence every time. To ensure your bike or e-bike stays in peak condition, here are some essential safety and maintenance tips.

Bicycle Safety 

Always wear a helmet – Safeguard against head injuries by using a properly fitted, safety-certified helmet.

Perform pre-ride checks – Before each ride, verify that brakes, tyres, and gears are in good working order.

Stay visible – Utilise lights and reflective gear when cycling in low-light conditions.

Follow road rules – Ride responsibly and remain aware of your surroundings.

Aftercare for Your New Bike Initial Check-Up (First 50-100 miles)

Gear Adjustment – New cables may stretch slightly; have a qualified mechanic check and adjust them.

Brake & Wheel Check – Inspect brakes for wear and ensure wheels are aligned properly.

Lubrication – Apply chain oil and check bolt tightness to maintain smooth performance.

Tyre Pressure – Regularly monitor to prevent flats and enhance efficiency.

Pedals - Ensure pedals are still tight and correctly fitted.

Routine Maintenance (Every Few Weeks)

Chain Care – Clean and lubricate your chain to minimise wear and prolong its life.

Brake Safety – Check brake pads and responsiveness before each ride.

Tyre Inspection – Look for punctures and ensure correct air pressure.

Handlebar & Stem Alignment – Confirm they are tight and secure to prevent instability.

Frame Safety Check – Look for any signs of damage or cracks.

Pedals - Ensure pedals are still tight and correctly fitted.

Professional Check-Ups

Have your bike serviced at least once a year, or more frequently if you ride often.

Aftercare for Your New Electric Bicycle (e-Bike) Initial Check-Up (First 50-100 miles)

Battery Care – Fully charge your battery (if required) before the first ride and store it in a dry, moderate-temperature environment.

Avoid Overcharging – Unplug the charger once fully charged to extend battery life.

Pedals - Ensure pedals are still tight and correctly fitted.

Routine e-Bike Maintenance (Every Few Weeks)

Motor Inspection – Listen for unusual noises and ensure smooth operation.

Battery & Connection Checks – Inspect cables and connectors for dirt, moisture, or damage.

Pedals - Ensure pedals are still tight and correctly fitted.

Seasonal e-Bike Maintenance

Check Electrical Components – Ensure wires and connections are clean and secure.

Professional Servicing – Have your e-bike inspected at least once a year or every 500-1000 miles for optimal performance.

By following these aftercare guidelines, you’ll help ensure that your bicycle runs smoothly, lasts longer, and remains a joy to ride. Stay safe and enjoy the ride!

Read our full advice

If you have any problems or concerns: Contact All Terrain Customer Services on 01274 588488 or email sales@allterraincycles.co.uk