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.
Bolted onto the underside of the tail end of a skateboard, the tail guard (also known as a "skid plate") protected the tail end from skid stops and other maneuvers that would otherwise wear away the wood (commonly known as razor tail) and decrease the longevity of the tail. Typically made of plastic, these were widely popular in the '80s but their usage quickly diminished with the arrival of two-tail board designs, which became increasingly popular in the '90s.
In 1977, skate parks began cropping up all over the place, including Skateboard USA, where Gelfand began to spend most of his time. His buddy, Scott Goodman, is the one who gave Gelfand the nickname of “Ollie” and dubbed his aerial lipside the “ollie-pop.” Pictures of Gelfand during this time period clearly show him getting airborne and performing the trick associated with his name today.
When looking at skateboarding’s history, the only thing that’s stayed the same is the overall structure: every board consists of four skateboard wheels, two skateboard trucks, and a riding surface of some kind. And while we’ve come a long way from the days of metal and clay wheels, some aspects of skateboarding - like the brands manufacturing some of the most trusted products - haven’t changed at all. Independent Trucks has been designing trucks since 1978. Powell Peralta, the company responsible for Powell Skateboards, Bones Wheels, Bones Bearings, and the Bones Brigade also started in 1978. NHS, Inc., the company that produces Santa Cruz Skateboards, Independent Trucks, Bronson Speed Bearings, Krux trucks, Flip Skateboards, Ricta Wheels, Mob Grip, and OJ Wheels started in 1973. It’s no wonder these brands are still doing so well - they’ve been with skateboarding since the beginning. Since the day skateboarding went from something surfers did when the waves were flat to its own sport that involves technique, practice, and careful consideration, a small handful companies have been there to help skateboarding become what it is today.
The wheels of a skateboard are usually made of polyurethane, and come in many different sizes and shapes to suit different types of skating. Larger diameters (55–85 mm) roll faster, and move more easily over cracks in pavement and are better for transition skateboarding. Smaller diameters (48–54 mm) keep the board closer to the ground, require less force to accelerate and produce a lower center of gravity which allows for a better response time, but also make for a slower top speed and are better for street skateboarding. Wheels also are available in a variety of hardnesses usually measured on the Shore durometer "A" scale. Again like car tires, wheels range from the very soft (about Shore A 75) to the very hard (about Shore A 101). As the A scale stops at 100, any wheels labeled 101A or higher are harder, but do not use the appropriate durometer scale. Some wheel manufacturers now use the "B" or "D" scales, which have a larger and more accurate range of hardness. Modern street skaters prefer medium-sized wheels (usually 51–54 mm), as small wheels with lighter trucks can make tricks like kickflips and other flip tricks easier by keeping the center of gravity of the skateboard closer to the deck, thus making the deck easier to spin. Street wheels are harder (A 100/A 101). Vertical ramp or "vert" skating requires larger wheels (usually 55–65 mm), as it involves higher speeds. Vert wheels are also usually slightly softer (A 98/ A 99), allowing them to maintain high speed on ramps without sliding. Slalom skating requires even larger wheels (60–75 mm) to sustain the highest speeds possible. They also need to be soft and have better grip to make the tight and frequent turns in slalom racing. Even larger wheels are used in longboarding and downhill skateboarding. Sizes range from 65 mm to 100 mm. These extreme sizes of wheels almost always have cores of hard plastic that can be made thinner and lighter than a solid polyurethane wheel. They are often used by skateboard videographers as well, as the large soft wheels allow for smooth and easy movement over any terrain.
The fact that it has nice and attractive prints also makes it a fashion skateboard. You can use it to show not only your passion in the sport but also your fashion sense. It is also equipped with a high-density emery surface known for being both waterproof and non-slip. With that, you have a hundred percent assurance of your safety when you are riding on it.
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Save time and avoid the hassle of setting up a new skateboard by buying a complete that we’ll build for you. Skate One offers a full range of complete skateboards featuring high-performance wood and composite decks, grip tape, bearings, wheels, trucks, and hardware suitable for men, women, boys and girls of all ages, experience levels, and styles of skateboarding. Whether you're looking for a classic re-issue, cruiser, funshape, longboard, mini, street or skatepark style complete skateboard, we have you covered.
So with your back foot, you want to kick the tail of your board down and right when it touches the ground you jump in the air off your back foot.  This is the ‘pop’.  It takes a little bit of getting used to but most beginners don’t really understand that initially, your back foot is doing most of the work.  Then bring your knees up to your chest after the jump, the higher up you pull your knees the higher up your skateboard can go!
Just before a skater performs an ollie, there are three forces acting on the skateboard. One of these forces is the weight of the rider, shown here with two red arrows. Another is the force of gravity on the board itself, shown with a small black arrow. Finally, blue arrows show the force of the ground pushing up on the skateboard. These three forces balance out to zero. With no net force, the skateboard doesn't accelerate, but rolls along at a constant speed.
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Land at the same time – Again, this is probably silly to repeat, but you’d be surprised to find out how many people execute a successful jump, and then throw their hands up in the air to celebrate their new-found triumph, and forget the most important part: landing. The best position for your feet to be in is as close to the trucks as possible. Don’t land too close to the nose or tail, or you could end up breaking off those the board itself. Also, remember to bend your knees to absorb the jump. Don’t want to land straight-legged: that’s how kneecaps are destroyed.
The Fakie is almost the same thing as a regular ollie-pop, but instead of going forward, the skater is going backwards when they pop the board up in the air, usually performed when you’re in a switch stance. A switch stance is when your feet are in the opposite stance of how you normally would stand, like when you write with your left hand instead of your right (if you’re right-handed).
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