Trek Wahoo 20 Trail Bike (2025)

2025 Trek Wahoo 20 Trail children's bike, in white. Trek Reference: 5294518

The Wahoo 20 Trail is a lightweight and durable children's bike designed to go beyond asphalt. Its robust aluminum frame is easy to handle, allowing kids to navigate trails with a bike tough enough to tackle demanding terrains. The 1x 9-speed drivetrain provides a wide gear range for climbing steep trails, and disc brakes offer incredible stopping power to slow down or stop quickly at any moment. Suitable for riders between 1.15 m and 1.32 m.

It's ideal for you if...

Your child is ready to try the trails, and you want a children's bike that can keep up. You're looking for the extra traction provided by large, wide, knobby tires, a wide gear range for climbing hills, and the reliable stopping power of hydraulic disc brakes.

The technology it incorporates

An Alpha Silver aluminum frame with 20” wheels and wide, knobby 2.4” tires for grip on the trails. It has a wide gear range thanks to the 1x microSHIFT 9-speed drivetrain and hydraulic disc brakes for powerful stopping.

The final word

The Wahoo 20 Trail is a true mountain bike, but in a smaller size. It’s perfect for kids who are ready to take the next step and want a bike that is manageable, sturdy, and lightweight. The hydraulic disc brakes are ideal for helping little ones progress on the trails.


Specifications
Frame Set

• Frame: Alpha Silver Aluminum, 20”
• Fork: Wahoo 20” carbon, post mount disc brake, 5 mm ThruSkew quick release

Wheels

• Front Hub: Formula DC-20, alloy, 6 bolts, 100 mm ThruSkew
• Front Axle: 135x5 mm screw-on
• Rear Hub: Formula DC-22, aluminum, 6 bolts, Shimano 8/9/10 hub, 135x5 mm quick release
• Rear Axle: 169x5 mm screw-on
• Rim: Aluminum 20”, 28 holes
• Spokes: 14 g stainless steel, black
• Tire: Kenda Amrak, 30tpi, 20x2.20”
• Max Tire Size: 2.40" with or without fenders

Drivetrain

• Shifter: microSHIFT Advent Quick Trigger Pro SL-M6295, 9-speed
• Rear Derailleur: microSHIFT Advent RD-M6195M, max cog 34-38T
• Crankset: ProWheel aluminum, narrow-wide 30T chainring, 115 mm length
• Bottom Bracket: Sealed cartridge, 68 mm
• Cassette: microSHIFT Advent H093, 11-38, 9-speed
• Chain: KMC X9
• Pedal: VP-225 nylon platform

Components

• Seat: Integrated padded children's seat post, Blendr light mount, 31.6 x 230 mm
• Handlebar: Bontrager aluminum, 31.8 mm clamp, 20 mm rise, 580 mm width
• Grips: Children's grips, 110 mm width
• Stem: Bontrager aluminum, 31.8 mm clamp, 6 degrees, 45 mm length
• Headset: Integrated, sealed cartridge bearings
• Brake: Tektro HD-J285 hydraulic disc, short pull
• Brake Disc: Tektro, 6 bolts, 160 mm
• Disc Size: Max brake disc size: 160 mm front and rear

Accessories

• Fenders: Custom Trek

Weight

• Weight: 9.80 kg / 21.61 lbs
• Weight Limit: This bike has a maximum weight limit (combined weight of bike, rider, and load) of 36 kg.