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Service manual
Time to bust out the repair stand for some maintenance? Find a detailed breakdown of your bike with part numbers, torque values, and platform-specific tech instructions below.
Get it hereGeneration A to B
During the global pandemic, kids’ bikes skyrocketed to must-have status for millions of families. What we do now to keep our kids rolling will determine the health of our future and theirs.
Read moreProduct features
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.
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.
Alpha Aluminum frame
Trek's lightweight, high-performance aluminum 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.
| Frame | Alpha Silver Aluminum, 20'' |
|---|---|
| Fork | Wahoo 20'' carbon, post mount disc brake, ThruSkew 5mm QR |
| Hub front | Formula DC-20, alloy, 6-bolt, 100mm ThruSkew |
|---|---|
| Skewer front | 135x5mm bolt-on |
| Hub rear | Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR |
| Skewer rear | 169x5mm bolt-on |
| Rim | Alloy 20'', 28h |
| Spokes | 14g stainless steel, black |
| Tire | Kenda Amrak, 30 tpi, 20x2.20'' |
| Max tire size | 2.40" with or without fenders |
| 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 |
| Pedal | VP-225 nylon platform |
| Saddle | Kids' padded, integrated seatpost, Blendr light mount, 31.6x230mm |
|---|---|
| Handlebar | Bontrager alloy, 31.8mm clamp, 20mm rise, 580mm width |
| Grips | Kids' grip, 110mm width |
| Stem | Bontrager alloy, 31.8mm clamp, 6 degree, 45mm length |
| Headset | Integrated, sealed cartridge bearings |
| Brake | Tektro HD-J285 hydraulic disc, short reach |
| Brake rotor | Tektro, 6-bolt, 160mm |
| Rotor size | Max brake rotor sizes: 160mm front & rear |
| Fender | Trek custom |
|---|
| Weight | 9.80 kg / 21.61 lbs |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 80 pounds (36 kg). |