2027 Trek Precaliber 20 - Marianas Blue

his sidewalk-ready kids' bike delivers a perfect balance of performance and rugged utility, making it an excellent match for neighborhood cul-de-sac exploration, first-time balance-to-pedal transitions, or a rock-solid daily driver. Equipped with a premium kids' suspension fork to absorb bumps and sidewalk chatter, this model features an advanced Alpha Silver Aluminium frame with kid-friendly geometry, a simple and reliable 7-speed Shimano geared drivetrain with intuitive twist shifting, and a factory-spec padded saddle with an integrated handle for premium comfort and parent-guided stability.

Specifications

Frameset & Suspension

• Frame: Alpha Silver Aluminium, 20" kids' frame size configuration, durable tubing architecture.

• Fork: Kids' suspension fork, threadless steerer system, 35 mm travel.

Drivetrain & Shifting (Shimano 1x7 Speed Mechanical)

• Shifter: Shimano RV300, 7-speed intuitive twist shifter.

• Front Derailleur: N/A (1x Dedicated single-ring drivetrain layout).

• Rear Derailleur: Shimano Tourney TY300.

• Cassette: SunRun freewheel, 14-28, 7-speed.

• Chain: KMC Z7, 7-speed.

• Bottom Bracket: Square taper, 68 mm, sealed cartridge style.

• Pedals: Kids' Satellite design, 9/16" thread platform.

• Crankset Configurations (ProWheel alloy arm layout with protective double guard):

  • All Sizes: 32T steel chainring, compact 127 mm length arms.

• Max Chainring Limits: 1x configuration: Maximum 32T | 2x configuration: N/A | 3x configuration: N/A.

Brakes & Rotors

• Brakes / Brake Levers: Alloy linear-pull rim brakes paired with kids' specific adjustable alloy levers.

• Rotors: N/A (Disc brake system omitted for simplified maintenance and weight savings).

Wheels & Tyres

• Wheelset System (Alloy 20" rims, robust 32-hole drilling, pre-drilled for Schrader valves):

  • Front Hub Configuration: Durable steel construction, 100 mm axle width, secure bolt-on style.

  • Rear Hub Configuration: Steel geared hub, traditional 26T drilling thread format.

• Tyres: Bontrager XR1, rugged wire bead construction, 27 tpi casing, high-volume 20x2.25".

• Max Tyre Clearance: Frame and fork limits at 20x2.25".

Cockpit & Components

• Saddle: Kids' padded saddle, featuring an integrated seat post and a rear parent-assist grab handle.

• Grips: Kids' specific comfort grip, optimized 130 mm width.

• Headset: Traditional adjustable ball bearing, threadless assembly.

• Handlebars standard by Size (Kids' steel riser bar):

  • All Sizes: 25.4 mm clamp area, 40 mm rise, stable 560 mm width.

• Stem Geometry by Size (Bontrager Approved alloy):

  • All Sizes: 25.4 mm bar clamp, 15-degree rise, short-reach 60 mm length.

Sizing, Weight & Performance Limits

• Alpha Sizes Available: 20" Wheel Configuration (Designed for growing children shifting into geared riding).

• Total Bike Weight: 10.90 kg / 24.04 lb (Standard build setup with factory inner tubes installed).

• Weight Limit: This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 36 kg (80 lb).

Included Accessories

• Support Infrastructure: Included frame-mounted kickstand.

Please Note: We make every effort to ensure the accuracy of the specification information, but components are subject to change by the manufacturer at any time without prior notice due to ongoing factory running parts substitutions. Bike and frame weights are based on pre-production painted frames at time of publication; production variances may occur.