Each skateboard wheel is mounted on its axle via two bearings. With few exceptions, the bearings are the industrial standard "608" size, with a bore of 8 mm (or 10mm depending on the axle), an outer diameter of 22 mm, and a width of 7 mm. These are usually made of steel, though silicon nitride, a high-tech ceramic, is sometimes used. Many skateboard bearings are graded according to the ABEC scale. The scale starts with ABEC1 as the lowest, followed by 3, 5, 7, and 9. It is a common misconception that the higher ABECs are better for skateboarding, as the ABEC rating only measures tolerances, which do not necessarily apply to skateboards. Bearing performance is determined by how well maintained the bearings are. Maintenance on bearings includes periodically cleaning and lubricating them [1]. Bearings that are kept unmaintained have their performance greatly lowered and will soon need to be replaced. Bearing cleaning kits are commonly available on the market. The ABEC rating does not determine the speed or durability of a skateboard bearing. In particular, the ABEC rating says nothing about how well a bearing handles axial (side-to-side) loads, which are severe in most skateboard applications. Many companies do not show the ABEC rating, such as Bones Bearings, which makes bearings specifically for skateboarding, often marketed as "Skate Rated". Each bearing usually contains 7 steel or ceramic bearing balls, although other configurations are used as well.
Also called the mounting hardware, the skateboard hardware is useful in connecting the trucks to the deck. Every truck is actually in need of 4 bolts and locknuts. If you are planning to buy hardware for your custom skateboard, then note that they are often sold in sets composed of 8 parts, though it is also possible for you to buy individual parts separately when required.

GREAT board. Great design graphics. The boards deck has a real POP to it that makes it GREAT for tricks and a AWESOME beginner board. Only problem is It's super slow and requires a lot of work to maintain speed or to pick up speed period. A simple $20 wheel barring upgrade will fix that and BOOM PERFECT board, PERFECT caved in deck. Only 4 stars because of the lack of speed. I prefer my boards ready out of the box already pre-upgraded, but for the price, no point in complaining. Like almost all new boards, u have to ajust the wheels and the flex of the board to customize it to your liking. You won't regret it. But order it with some "Lucky" or "Red bearings" and your set.
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Today, many riders use the “ollie-pop” on more than just the flat-level surfaces in between other tricks, it’s used heavily in the half-pipe and bowl ramps to allow the rider to go even higher in the air. Performing the “ollie-pop” while you’re at or near the top of the lip is a great way to get an extra couple feet, which might be all you need to get that extra turn in and nail the 720 (or 900, if you’re Tony Hawk).
Made with bamboo and fiberglass, this board is tough, flexible and ready for anything. The construction is designed to feel and act like a snowboard. The drop-through design is perfect for freestyle longboarding, commuting, carving, pumping and more. It gives you better stability and more wheel clearance. The board is definitely best designed for carving but tricks and kicks are easily done as well.
This board is an excellent option for beginners because of its simplicity and durability. The lightly concave design allows for simple turns but doesn’t require the rider to be an excellent navigator. You can start off riding this deck down the street and use it as you learn ollies, kickflips and how to drop in to a half pipe. It will withstand it all and look good doing it.  
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