2. Skateboard bracket (truck):
The skateboard bracket is also called bogie, and the bridge plays an important role in the performance of skateboard. At present, most of the bridges produced in the United States are special aluminum alloys, and almost no longer break. Spans of skateboard bridges are 126 mm, 129 mm, 134 mm, 139 mm, 146 mm, etc. Skateboarding bridges with different spans and boards with different widths make skateboarding more flexible and easier to control. The height of the bridge is also different. The higher bridge is suitable for installing larger wheels, and the lower bridge is suitable for installing smaller wheels, so it will be more comfortable to slide, and it is unlikely that the wheels will hit the board when bending or the main bridge nail will break due to excessive bending.
INDY, VENTURE, DESTRUCTO, Thunder, Orion, GRINDKING, TITAN (Nissan) and other bridges are all good. Indy is known as the king of bridges, and its quality is self-evident. There are also quite a few people using VENTURE in America. DESTRUCTO is the best-selling bridge in America and my personal favorite bridge. DESTRUCTO is very smooth when doing the action of sliding bridge on the round bar (such as 50/50, 5/0, K-GRIND, etc. ), and it is very stable. Orion's PU cushion is so good that it can be as hard as a stone when twisted, and it won't explode no matter how you use it. GRINDKING's bridge is the lightest, but the steel bar in its central axis is not very hard, it will bend if it jumps too much, and it is not wear-resistant, but its main bridge nail is quite good, and it is reverse. Titan, according to friends who have seen it, is very good, beautiful, lightweight and rust-proof, but it is a little more expensive than ordinary bridges.
3. Skateboard wheel:
Skateboard wheels also have a lot to say. Except the accuracy of bearings (such as ABEC 1, ABEC3, ABEC5, ABEC7, etc.). ), it depends on the performance of the wheel.
The first is hardness. Skateboard wheels are usually made of polyurethane, and the hardness of the wheels varies with the proportion of polyurethane in the wheels. Wheels with hardness of 85A(A stands for hardness) are soft, suitable for sliding on rugged roads, and the sound is extremely low when sliding, which is a good choice for friends who like to pedal shopping. However, the wheel of 85A is soft and not wear-resistant, and it is easy to break the spacer when doing sideslip braking and other actions. Nowadays, skaters generally use 97A- 103A wheels. This kind of hard wheel is suitable for smooth marble and flat road surface, as well as props such as U pool and platform jumping. There is no sound in smooth and flat places, such as the wheels of 85A. But in rugged places and on the U-shaped pool, there will be a loud rumble (this kind of sound often makes the wrench have a boiling blood). 103A is used for transparent or translucent wheels. It's too hard and will crack. It is best to use it only on props made of all wood materials.
The second is the diameter, and now 38-40mm wheels are rarely used. This kind of wheel starts quickly and accelerates quickly, but its stamina is small. It is only suitable for very flat roads, and its characteristic is quite flexible. Friends who like small moves can try. 45mm-50mm wheels are the most suitable wheels for road types. 52-60mm wheels are more suitable for props. Because the action on the props needs strong power, the flat action wants the board to be as light as possible, and the heavy board on the props can sometimes bring greater inertia and impact, allowing you to fly higher and farther. You can choose cross-country wheels over 60 mm in the field, and professional mountain skateboarding uses large rubber wheels.
There is also a rebound, and the rebound of the wheels is very important. Although there are no parameters to refer to. However, the stronger the rebound, the stronger the ability to overcome obstacles. If you don't know how well your wheels bounce, you can do a small experiment. Remove the bearing from the wheel and throw the wheel to the ground. If the bullet is high, the wheel will bounce to the ceiling, and the wheel that bounces at the bottom will only bounce to the ground twice. On the flat ground, perhaps, the two kinds of wheels run as fast, but when encountering uneven road conditions, the advantages of high rebound wheels will immediately appear.