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Ships within 48 hours · Estimated delivery Sep 21 - Sep 26
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Description
trek kinderfahrrad 20 Trek Precaliber 20 Boy's Single Speed Viper RedPrecaliber 20 will have your little rider begging to go out for a pedal on their first real big kid bike. Great transition model from training wheels. One speed, a coaster brake, and a saddle with an integrated handle that can be swapped out for a light mount. For kids ages 6 8, between 45 52" tall. Store Pickup Only: Please contact us to confirm availability. Once ordered, it will take 4 to 7 days for delivery and ready for pickup at The Bicycle
- Precaliber 20 will have your little rider begging to go out for a pedal on their first real big kid bike.
- Great transition model from training wheels.
- One speed, a coaster brake, and a saddle with an integrated handle that can be swapped out for a light mount.
- For kids ages 6-8, between 45-52" tall.
Store Pickup Only: Please contact us to confirm availability. Once ordered, it will take 4 to 7 days for delivery and ready for pickup at The Bicycle Store-Florham Park, NJ
SPECIFICATIONS
Frameset
| Frame | Alpha Silver Aluminum, 20'' kids' frame size |
|---|---|
| Fork | Kid's steel fork |
Wheels
| Hub front | Steel, 100mm bolt-on |
|---|---|
| Hub rear | Coaster brake, 19T, 110mm bolt-on |
| Rim | Alloy 20'', 32-hole, schrader valve |
| Tire | Bontrager XR1, wire bead, 27 tpi., 20x2.25'' |
Drivetrain
| Crank | ProWheel alloy, 32T steel ring w/double guard, 127mm length |
|---|---|
| Bottom bracket | Square taper, 68mm, sealed cartridge |
| Chain | HV410, 1/2x1/8 |
| Pedal | Kids' Satellite, 9/16 thread |
Components
| Saddle | Kids' padded, integrated seatpost, with handle |
|---|---|
| Handlebar | Kids' steel, 25.4mm clamp, 40mm rise, 560mm width |
| Grips | Kids' grip, 107mm width |
| Stem | Bontrager Approved alloy, 25.4mm clamp, 15 degree rise, 60mm |
| Headset | Adjustable ball bearing, threadless |
| Brake | Alloy linear-pull |
| Brake lever | Kids', alloy |
Accessories
| Kickstand | Kickstand |
|---|
Weight
| Weight | 9.99 kg / 22.03 lbs |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 80 pounds (36 kg). |
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Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 3
Multiple ports
Style: 20W_USB-C, Size: 10FT
The usb outlet broke within a week of purchase. The rest of the outlets work perfectly. Like that it has multiple ports to plug in.
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Reviewed in the United States on January 26, 2026
★★★★★ 5
Amazing. A bit of a job to set it up but worth it!
Color: Black, Color: Black
Excellent quality. Sturdy and strong. The screws that come with it are awful. Get yourself some different ones.
Takes a while to set it up and get it all measured. I did it while I was setting up my new Flexi-spot E7 Plus standing desk. Wanted to get it all done at the same time. At first. I thought it might be overkill, but I am sooooo glad I did get this. Now my computer moves along with the desk. It looks great. I bet it has improved the air flow around my computer as well.
Looks sleek and cool.
I might have set it a bit too tight around my case and as a result I have to shimmy it to get it out of the holder if I have to do any work on the computers internals. But at least I know it's secure. My suggestion would be to leave a little bit of slack to avoid this in your setup. Maybe like a 1/4 inch would be ok. The pads should hold it in place anyway. May loosen mine up if I find the time.
But it feels totally secure on the desk with no wobble or shaking.
Great product.
Also I'm a woman in my late fifties 😃and I was able to set it all up on my own. So don't be intimidated ladies, you can do it too.
I also bought two of the ultimate set up cable management trays. Great products.
Note for anyone from the Ultimate Setup company who might read this. Please provide better quality wood screws and some extra ones) I stripped three of the cheap ones that came with this. And it took forever to drill them in because they weren't strong enough. Then it would be perfect.
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Reviewed in the United States on November 17, 2025
★★★★★ 5
Solid, simple and perfect.
Color: Black, Color: Black
Great simple design. The quality is evident in the thickness of materials. The assembly instructions, hardware and tools provided help minimize the time spent from opening the box to install. This product is packaged well and shipped with the customer convenience in mind. Well done!
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Awesome quality
Color: White, Color: White
Take your time installing! It comes with all the instructions and templates. Make sure you’re screwing this into solid wood. I would not recommend you hang your expensive PC from a particle board table.
My Pc fits in well and it’s compatible with a ton of different sizes. Mine has been mounted under my desk for about 6 months and is rock solid. I will say, mine is balancing in there. If I don’t have it at its center of gravity, it could tip out. You can adjust it with the various screw holes but make sure you mount it into something solid.
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Reviewed in the United States on April 16, 2026
★★★★★ 5
Fantasic under-desk mounting solution for gaming PC
Color: White
This item comes with an incredible amount of tools and guides for making you successful in mounting your desktop PC under the desk. I am very impressed with the quality of the materials and also the quality of documents included. It feel very sturdy using the included hardware.
I would recommend this item for anyone wanting to free up desktop space!
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Reviewed in the United States on March 27, 2026