In general an axle width should be chosen that is close to the width of the deck it will be used with. For example, a 7.75" wide deck will usually be fitted with trucks that have axles between 7.5" wide and 8.0" wide. (Standard truck axle nut size is 5/16"-24tpi UNF, and the thinner "jam" style with an optional nylon lock.) Trucks that are too wide can make doing tricks difficult and can cause the wheels to get in the way when the skateboard is being ridden. Trucks that are too small can be hard to maintain stability and can cause wheel bite to occur when turning.
In most cases, it is available in black but you can also find clear ones that are ideal for you if you want to show a specific logo. Another nice choice that you have is the die-cut grip tape, which works in displaying the color or design of the deck beneath it. Make sure to choose a grip tape at a size, which perfectly suits your skateboard’s deck.
One foot on the tail, (by foot I mean the ball of the foot which is just behind the big toe) the other foot is about an inch behind the bolts(screws) for the front truck. Basically, the back foot quickly pushes the tail down, and right when the tail of the board strikes the ground, the back foot jumps up… the tail of the board will follow up with the foot when the front foot slides forward slightly, which pivots the tail of the board upwards. Since the front truck comes off the ground first, getting the back truck up is the trick.
The Bamboo Skateboards Galaxy Series Cosmic Cloud Skateboard Deck is an excellent option. This concave board is made exclusively of a bamboo hybrid, rather than pure maple. This means the deck is lighter, stronger, more flexible and can even absorb shock better. The non-carbonized, light-wood deck is made of 6-ply wood and is in its fourth generation of designs.
To get higher ollies, I would suggesting resting your back foot on the very end of the tail and the front foot in the middle of the deck to allow for more slide. Popping as hard as you can and catching your board in the groove of the nose with you ankle practically resting in the groove will level the board out in the air. after this initial movement slide you feet back to the bolts on the tail and nose to ensure a clean landing.