Shock pads are made of polyurethane and rubber. They are very similar to risers but vary in the fact that their sole purpose is to cushion the board from the trucks. Since the trucks are metal and the board wood, whenever the board hits the ground after doing a trick, the energy goes through the truck to the board ─ this has caused boards to crack, split, or even break in half, and shock pads were created to prevent this.
In 1982, while competing in the Rusty Harris contest in Whittier, California, Rodney Mullen debuted an ollie on flat ground, which he had adapted from Gelfand's vertical version by combining the motions of some of his existing tricks. Mullen used a "see-saw" motion, striking the tail of the board on the ground to lift the nose, and using the front foot to level the board in mid-air. While Mullen was not initially impressed with his flat ground ollie, and did not formally name it, he realized it opened up a second, elevated plane on which to perform tricks.
In 1978, Alan Gelfand, who was given his nickname "Ollie" by Scott Goodman, learned to perform no-handed aerials in bowls and pools using a gentle raising of the nose and scooping motion to keep the board with the feet. There are numerous references to Alan Gelfand's Ollie with most notably pictures in the 1970s skateboarding magazine "Skateboarder".
The DreadXBoards Concave Skateboard has Plastic Deck Injection Molded for excellent durability. It features Urethane Wheels 59mm 78a, aluminum trucks, and Abec 7 Bearings. It is completely assembled and is ready to ride. It is perfect for beginners or experienced riders. It can load up to 185 lbs. It is great for kids and adults. It has an excellent rating of 4 on Amazon.
I have skated for about 7 years i took a 2 year break. I have had about 50 boards and from that id say this board is ok seeing as iv had zero's break day one. if your newer to skateboarding and you dont mind the cost i would say go for it. For more hardcore skaters there are some things you should know about this board. im not 100% about the trucks day one just doing kickflips 360 flips smaller gaps.. its a bit shaky i dont think these trucks are make for stairs or big gaps but they will do till i have the cash for some thunders. the bearings are hit or miss one is on its way to being blow out the others seem to be fine. I got to say i really like the wheels there was not much info on them but they are smaller and harder and i love harder wheels i hit a nice nolie 360 first try and the sound of the slide took me back to the good days. As for the board i cant judge it off one day of skating but from the looks of it its not a knock off. Here are some tips for buying a board online. find real skaters in the comments dont buy a board because a dad said his kid loves it. When you get the board go over all the parts and look over your board well make sure there are no defects in the board. make sure the board is not waterlogged a few taps should tell you. if you dont know anything about skateboards ask a friend to help and if you find any defects send it back right away. I hope the review helps you.
Sublimation (phase transition) is the transition of a substance directly from the solid to the gas phase without passing through an intermediate liquid phase. Sublimation is an endothermic phase transition that occurs at temperatures and pressures below a substance's triple point in its phase diagram. In this case, ink is transferred to a base layer, fibreglass for example, through heat and pressure, the result is a full color graphic that will not come off as easily as the more common heat transfers. This application is often found with bamboo boards and composite construction longboards where fibreglass can allow for various degrees of flex or stiffness depending on the ride you're looking for, cruising and carving versus slalom and downhill.
It is mainly because those items are guaranteed to help you familiarize yourself with the ins and outs of using them. They are a big help in making you feel comfortable when you push off with your feet while also balancing on top of the board when riding. It is not good to go for a very technical product, so it’s best to choose the mentioned types first.