Wahoo 20 Trail 20 Crystal White

Wahoo 20 Trail is a light and tough kids bike thats ready to roll off-road. Its sturdy aluminum frame is easy to maneuver as they weave their way down the trail, but rugged enough to handle the tough stuff. A 9-speed 1x drivetrain gives them plenty of gears for pedaling up steep trails, and disc brakes provide next-level stopping power to slow their roll or help them stop on a dime on the way back down. Perfect for riders between 45-52" tall.

• Wahoos aluminum frame is light enough for easy handling and tough enough to roll through the rough stuff
• Hydraulic disc brakes give them the same serious stopping power youll find on adult mountain bikes
• A 9-speed drivetrain gives your kiddo plenty of gears to shift through, but isnt too much to handle
• Wide and knobby 2.4in tires provide heaps of traction for confidence on the trail
• Trek kids bikes are designed and assembled by people who know bikes — and backed by a lifetime warranty

Lightweight carbon fork

A durable carbon fork cuts weight for easy maneuverability, absorbs bumps in the trail for happier rides on rough terrain, and comes with a legit front fender that screams, "real mountain bike".

Dropper post compatibility

Wahoo Trail can accommodate an internally-routed 31.6mm dropper post for little rippers who want to get their saddle out of the way for extra rowdy descents.

Kid-friendly trigger shifters

Thumb-activated shifters make it easy to find the right gear and set young riders up for success with a kid-friendly version of the shifters you find on adult bikes.

Comfortable, confident geometry

An upright hybrid-style geometry mimics the feel of an adult bikeand keeps kids confident and comfortable for days where they want to ride until dinner time.

A better way to produce aluminum

Starting in 2024, we began removing high-emission aluminum from our manufacturing and replacing it with low-emission aluminum made with renewable energy. By October 2025, nearly every alloy bike we make - this one included - had made the switch, driving a major drop in our footprint.

Upgrade your pedals and love your bike more

Pedals are two of the five touchpoints that connect you with your bike, and even though this bike comes with a pair, upgrading to pedals that boost control and grip will greatly improve your ride. See the pedal guide and find the best pedals for your riding style. We recommend flat pedals for simple versatility.

Frame	Alpha Silver Aluminum, 20
Fork	Wahoo 20 carbon, post mount disc brake, ThruSkew 5mm QR
Tire	Kenda Amrak, 30 tpi, 20x2.20
Hub Front	Formula DC-20, alloy, 6-bolt, 100mm
Hub Rear	Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm
Rim	Alloy 20, 28h
Skewer Front	135x5mm bolt-on
Skewer Rear	169x5mm bolt-on
Shifter	microSHIFT Advent Quick Trigger Pro SL-M6295, 9 speed
Rear Derailleur	microSHIFT Advent RD-M6195S, 34-38T max cog
Crank	ProWheel alloy, 30T narrow-wide ring, 115mm length
Bottom Bracket	Sealed cartridge, 68mm
Cassette	microSHIFT Advent H093, 11-38, 9 speed
Chain	KMC X9
Brake	Tektro HD-J285 hydraulic disc // Tektro HD-J285 hydraulic disc
Brake Rotor	Tektro, 6-bolt, 160mm
Pedal	VP-225 nylon platform
Saddle	Kids padded, integrated seatpost, Blendr light mount, 31.6x230mm
Seat Collar	Bolt-on, 36.4mm
Handlebar	Bontrager alloy, 31.8mm clamp, 20mm rise, 580mm width
Stem	Bontrager alloy, 31.8mm clamp, 6 degree, 45mm length
Headset	Integrated, sealed cartridge bearings
Grips	Kids grip, 108mm length
Fender	Trek custom

Geometry Chart

B B Drop	4
B B Height	23
Chainstay Length	37.2
Eff Top Tube	44.8
Frame Reach	32.4
Frame Stack	40.7
Head Angle	67.0°
Head Tube Length	8.5
Seat Tube	25.5
Seat Tube Angle	73.0°
Standover	47.6
Trail	6.5
Wheelbase	89.5
Wheel Size	20" kids