The Krown Rookie Skateboard Complete 7.5 comes with thick, sturdy 7-ply maple wood deck. It gives you more control and permits you to perform various tricks. It features carbon steel ABEC-3 bearings, aluminum trucks, bushings and 54mm x 34mm wheels. This board is perfect for kids who are 8 years and older. It has a maximum weight capacity of up to 220 lbs.
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.
It wouldn’t be until the early 1980’s however, that a man named Rodney Mullen fully developed the skateboard ollie and brought it into vogue. Competing in the Rusty Harris contest in Whittier, California in 1982, Rodney Mullen used a back and forth motion on his skateboard to strike the back end of the board on the ground and using the front end to level the board out in mid-air – all from a flat surface. The audience’s jaws collectively hit the ground.
If you are new to skateboarding and are looking to build a custom skateboard complete, the best place to start is with the deck. While not all boards are created equal, groms will do well on just about any brand skateboard offered at CCS as durability really won’t come into play until riders start to skate bigger gaps and transition. So your focus should primarily be on finding the right deck width, board graphic, and brand that resonates with you or the rider.

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.
Now, I might not be able to skate to save my life, but I can do a little physics. So here's a thought - maybe I can use physics to learn how to do an ollie. Here's the plan. I'm going to open up the above video of skateboarder Adam Shomsky doing an ollie, filmed in glorious 1000 frames-per-second slow motion, and analyze it in the open source physics video analysis tool Tracker.
My fiancee purchased this via my account and he says that it has good concave shape and pop.Assembling was fairly simple, easier if you have a box cutter on hand to help with laying the grip tape. The deck was the best part but the bearings were good too. He thought the bushings were the worst, after about two hours of skating, both bushings were crushed and stuck in one direction. He's been skating for almost 13 years. Hope this helps!

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