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Trek Wahoo 20 (2022)


Wahoo 20 is a lightweight, simple and practical kids’ hybrid bike that makes it easy for your little one to make the most of every ride. This versatile bike is built for ease of use: it is light, capable on a variety of surfaces and equipped with a 1×8 drivetrain and a wide range of gearing for wherever your little one roams. For kids ages 6–8, between 114–132 cm (45-52˝) tall.


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This is a shipping service only for the bicycles we sell. It is for whole bicycles only. Parts and other smaller items ship regular postal mail.

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Bike collection during your chosen collection day and time.

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Alpha Aluminium frame

Trek’s lightweight, high-performance aluminium is durable and rustproof.

1x drive train

Simple shifting is the best way to teach a kid to ride a real mountain bike.

Race-ready components

Quality components mean this bike is ready to shred the singletrack, on race day or every day.

Hand brakes

Confident stopping for youngsters who are ready to control their speed with their hands.

Product Specifications

Frame Alpha Silver aluminium, 20˝
Fork Aluminium 20˝
Front hub Formula TK31 alloy
Rear hub Formula FM32 alloy
Rims 20˝ 28-hole, alloy
Tyres 20×1.95˝ versatile tread
Shifters Shimano Acera M360, 8-speed
Rear derailleur Shimano Altus M310
Crank Alloy, 140mm, 32T
Bottom bracket Loose Ball
Cassette Shimano HG31, 11-34, 8-speed
Chain KMC Z51
Pedals Dialled 9/16˝, platform
Saddle Kid’s specific, padded
Seatpost Bontrager-Approved, alloy, 27.2 mm
Handlebar Bontrager alloy, 31.8 mm, 15 mm rise
Grips Dialled, Kraton
Stem Bontrager alloy, 31.8 mm, 7-degree, Blendr compatible
Head set VP 1-1/8˝, semi-Integrated
Brake set Alloy linear-pull, Dialed alloy levers
Weight 8.89 kg / 19.59 lb
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider,and cargo) of 36 kg (80 lb).