This review has been updated 9 times since it was first published in February of 2019. Whether you’re completing a school project, tinkering in your garage, or building an army for world domination, your robots are going to need a way to get around. These wheels provide that locomotive ability, in both standard and track form. We’ve selected basic options as well as kits that work with Arduino, Raspberry Pi, and more, at various price points, so everyone can get in on the fun. When users buy our independently chosen editorial picks, we may earn commissions to help fund the review.

10. Eudax DIY Assortment
Novices might want to avoid the Eudax DIY Assortment (about $9), as it’s a package of 82 parts, including gears, axles, tires, rubber bands, and much more, but with no real instructions. If you need a range of components and know how to assemble them, though, it’s a fine option.
- Also good for toy makers
- Various colors and sizes
- Not for off-road or rugged use

9. Pitsco Education Tetrix Max
Although the Pitsco Education Tetrix Max (appx. $30) claim to be sold as a two-pack, this is somewhat misleading, as the two pieces are actually used together to form one omnidirectional unit. That means you’ll need a two-pack for every wheel you intend to add to your robot.
- Large 4-inch diameter
- 10 rollers on each
- Cost can quickly add up

8. Uxcell DC 6V
The Uxcell DC 6V (appx. $20) is a gear motor and wheel combo that’s useful for either completing new builds or replacing worn parts on existing ones. This particular unit offers a speed of 300 RPM, but if that isn’t adequate for your needs, there are faster models available.
- Runs relatively smoothly
- Sold singly rather than in pairs
- Minimal documentation

7. Xiaor Geek 4WD
If it’s a car, specifically, that you’d like to create, then the Xiaor Geek 4WD (about $25) is a helpful kit to have on hand. It’s designed to work with single board computers, including the Raspberry Pi, although you’ll need to supply your own, along with any accessories.
- Comes with wiring and screwdriver
- Chassis is about 10 inches long
- Best for beginners

6. AutoEC 4 Pack
Builders who don’t have deep pockets may wish to take a look at the AutoEC 4 Pack (about $13), an uncomplicated choice with a painless price tag. They’re bright yellow, so highly visible, and just over an inch wide, making them big enough for a range of projects.
- Made from rubber and plastic
- Gear motor also available
- Can't handle rough terrain

5. Unihobby 6-Inch
The Unihobby 6-Inch (about $123) are Mecanums, which are useful for their ability to move in any direction, including side to side, which is no small feat. This set arrives with two right and two left units and, when used together, they can hold a maximum of 15 kilograms.
- Each has 15 rollers
- Durable aluminum construction
- Not exactly inexpensive


4. Tamiya Tracked Vehicle Chassis
The Tamiya Tracked Vehicle Chassis (about $25) has a single-drive gear box, which means that it can only travel in a straight line, but it’s not too tough to swap this for a twin-drive version for greater flexibility. You’ll have to drop two AA batteries into it, for power.
- Clear helpful instructions
- Good quality for the cost
- Will need to assemble it

3. Pololu 60 Millimeter
The Pololu 60 Millimeter (about $12) are conveniently sold in pairs and designed to either press-fit or screw-mount onto many of the motors offered by the same company. Each of the spokes has a slot that makes attaching additional accessories a breeze.
- Tough silicone tires
- Light at less than half an ounce
- Not overly expensive

2. Colson Performa
At first glance, you might not think the Colson Performa (appx. $6) has much going for it, since it has a simple and unassuming appearance. In reality, though, it is a rugged option that provides a fine blend of durability and traction for demanding competition environments.
- Industrial strength and quality
- 250-pound capacity
- Rolls easily and quietly

1. Tamiya Track Set
You can use the Tamiya Track Set (appx. $7) with the company’s line of parts and products or with those from other manufacturers, if you wish, making this kit quite versatile. In fact, it includes tracks and wheels of various size, so your creativity won’t be limited.
- Large and small sprockets
- Simple but effective
- Budget-friendly price

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