5271621
768682595008
When you buy a bike from us in the store or come to collect your Click & Collect order we will adjust your new bike to fit you.
This includes adjusting saddle height, saddle position and where possible adjusting the brake levers / gear shifters.
We will also adjust any accessories you have purchased with your bike where applicable.
At Wheelworx, we're committed to delivering not just quality bikes but also exceptional value and peace of mind for our customers. That’s why every bike purchased from us includes Lifetime Free Service—so your bike remains in peak condition for years to come!
The free service is put in place to make sure the bike you have purchased is running correctly and to adjust out any cable stretch that happens to any new bike.
The type of bike you have bought and the type of riding you have planned will affect how soon you need to book your free service.
However if you experience any issues at any time you should stop riding your bike and book your bike in for its free service immediately.
ANY BIKE PURCHASED IN WHEELWORX COMES WITH A LIFETIME FREE SERVICE

The 2026 Precaliber 20 20" WHEEL PURPLE ABYSS is available at the following locations.
The item will be transferred to the location you choose during checkout.
If the item is not currently available to view at your desired location, please call your nearest store to arrange for it to be transferred.
The Precaliber 20 Freewheel will have your little rider begging to go out for a pedal on their first real big kid bike. It's a great transition model from stabilisers. It has one speed, two hand brakes and a saddle with an integrated handle that can be swapped out for a light mount. For kids aged 6-8, between 114-132 cm tall.
Your kid is ready to leave training wheels behind, and you want to get them a fun, durable, bike that's simple to use. You don't want to settle for a big box brand because you know the value of a high-quality bike that will keep your kid confident and in control.
A lightweight Alpha Silver Aluminium frame, one speed and two hand brakes with kid-sized levers that are easy to pull. Plus, a kickstand and a saddle with an integrated handle that can be swapped out for an integrated rear light mount. Everything on this bike is built to last, so it'll still feel like new when handed down to younger siblings.
This bike is the perfect choice for young riders who want to transition from a little kid bike to a big kid bike, with a simple, quality frame that will keep them upright and smiling while they ride at the park with friends or on the local bike paths with your family.
- This bike has hand brakes so kids can gain confidence using them before stepping up to a geared bike
- One speed is all you need - a simple set-up gives kids confidence and helps them stay in control
- You can replace the saddle's integrated handle with an integrated light mount to boost visibility on family adventures and solo excursions
- Like all Precaliber bikes, the frame is lower so it's easier for kids to stand over and hop on and off
- Investing in a kids' bike from an established bike brand is worth it - Trek kids' bikes are designed and assembled by people who know bikes
Integrated handle
Hidden handle under the saddle helps you guide your child while they learn to ride.
A better way to produce aluminium
Starting in 2024, we began removing high-emission aluminium from our manufacturing and replacing it with low-emission aluminium 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 | Size 20" wheel, Alpha Silver Aluminium, 20" kids' frame size |
| Fork | Steel, 20", threadless 1-1/8" steerer |
| Wheel Size | Front 20 / Rear 20 |
| Wheels | Alloy 20", 32-hole, Schrader valve Steel, 100 mm, nutted axle Steel |
| Tyres | Bontrager XR1, wire bead, 27 tpi, 20x2.25" |
| Crank | ProWheel alloy, 32T steel ring w/double guard, 127 mm length Square taper, 68 mm, sealed cartridge |
| Cassette | 18T freewheel |
| Chain | HV410, 1/2x1/8 |
| Pedals | Kids' Satellite, 9/16 thread |
| Front Brake | Alloy linear-pull // Alloy linear-pull Kids', alloy |
| Rear Brake | Alloy linear-pull // Alloy linear-pull Kids', alloy |
| Handlebar | Kids' steel, 25.4 mm clamp, 40 mm rise, 560 mm width |
| Grips | Kids' grip, 107 mm width |
| Stem | Bontrager Approved alloy, 25.4 mm clamp, 15-degree rise, 60 mm |
| Headset | Adjustable ball bearing, threadless |
| Saddle | Kids' padded, integrated seat post, with handle |
| Weight | 9.27 kg |
| Colours | LITHIUM GREY, PURPLE ABYSS, VIPER RED |
| Sizes | 20" WHEEL |
| Brand | Trek |
| Model Year | 2026 |
| Barcodes | 768682594728, 768682594902, 768682595008, 768682595046 |
| SKUs / Part Numbers | 5271619, 5271620, 5271621, 5271622 |
Please note: Manufacturers can sometimes change the specification of the products from time to time.