Hey dude i want to push faster and constantly at the moment i am starting and stopping to much i would like to keep going is it because I’m not fit enough yet or am i not pushing correctly I’m regular stance…..should i put push down on my left knee while pushing for a while to keep my board straight?!!!! I also am trying to get my ollies down….. 🙂
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 Skatro Mini Cruiser Skateboard includes Abec 7 Skatro Bearings, 59MM Urethane Skatro wheels, and 3-inch lightweight aluminum trucks.  The Skatro Flexy Technology ensures optimal flex on every board. Skatro outperforms most of the leading brands and it has an amazing value.  You can take this board on the subway, plane, train, and even on the bus.  It includes a color matching T-tool.  It has the best rating of 4.8 on Amazon.

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.

Velocity Boards Retro Banana Skateboard is a 22″ Complete Board Set with 6″ Aluminum Trucks, ABEC-7 Bearings, High-Quality Wheels, and Bushings. It is designed for maximum grip. The Deck measures about 22 x 6 x 4″. The truck Axle has a Width of 6″ and the Truck Hanger has a Width of 3″. It has a maximum load capacity of 176 lbs. (80 kgs.) It is best for skaters who are 6 years old and Up. It has an average Amazon rating of 4.7.

It's a neat piece of science art, and it also tells us something interesting. The arrows show us that the force on the skateboard is constantly changing, both in magnitude as well as in direction. Now the force of gravity obviously isn't changing, so the reason that these force arrows are shrinking and growing and tumbling around is that the skater is changing how their feet pushes and pulls against the board. By applying a variable force that changes both in strength and direction, they're steering the board.

The ollie is a skateboarding trick where the rider and board leap into the air without the use of the rider's hands.[1] It is basically the combination of popping, sliding, and jumping on the skateboard all at the same time. Originated in vertical skateboarding, and later on flat ground, it is not intuitively obvious how the liftoff is achieved, making the movement visually striking.
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.