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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.

The skater can gain greater clearance from the ground by jumping higher, popping faster, sliding the front foot farther forwards (starting the jump with the front foot farther back), and pulling the legs higher into the chest to raise the feet higher. Skaters attempting record-setting ollies even contort the legs so that board and feet are not directly below them, allowing the board to rise at or just below the level of the pelvis.
Any serious skateboarder will tell you that the ollie is the most fundamental skateboard trick. In fact, it's probably the first trick that you'll learn on your skateboard. They’re great for getting over obstacles, moving around on your board, or just looking cool. Know the right way to move your feet on the board and with a little bit of practice, you can learn to pull off the perfect ollie.
If you’ve ever watched a skateboarder roll down the street and then all of a sudden pop into the air on a skateboard, you’re probably wondering the same question a lot of people do: how on earth do they do that? It almost seems magical how they just seem to explode off the ground, and then just kind of float. Skateboarder, meet, the ollie. It’s not in the category of “easy skateboard tricks,” but if you learn how to ollie, you’re well on your way to fame and fortune as a professional skater.
The Element Quadrant #14 board is 8-inches wide and 31.75-inches long, from nose to tail. This deck features a bare top that needs grip tape and a design on the bottom with four quadrants featuring the Element symbol in alternating red and black backgrounds. The wheelbase between the trucks is just over 14 inches while the nose is 7 inches and the tail is 6.325. 
Skateboard hardware is used to connect the skateboard trucks to the skateboard deck. Skateboard hardware refers to the bolts and locknuts used when building a board. The bolts can have an Allen or Phillips head. Skateboard hardware comes in many different lengths, and often includes one different colored bolt so that the rider can mark the nose of their board.
Ohderii Skate Skateboards are made of a High-quality Plastic deck which will not easily break even when pressed over by a car.  It comes with 3.125″ all aluminum alloy trucks, 59mm 78A super smooth PU wheels and ABEC-7 stainless steel bearings.  It is ready to use and you can easily store it in your backpack.  It has an average rating of 4.5 on Amazon. 
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