all bearings are the same size and all wheels have the same size inner part where the bearings go so that the always fit
The wheels of a skateboard, many times made up of polyurethane, are available many diverse sizes and styles to journey categories of skating. extra suitable sizes like fifty 4–80 5 mm roll quicker, and additionally pass extra actual over cracks in pavement. Smaller sizes like 40 8–fifty 4 mm shop the board closer to the floor, require much less tension to develop up and bring a decrease center of gravity, yet additionally make for a slower outstanding velocity. modern street skaters desire smaller wheels (many times 51–fifty 4 mm), as small wheels with lighter vehicles could make tricks like kickflips and different turn tricks much less stressful by skill of preserving the middle of gravity of the skateboard closer to the deck, for this reason making the deck much less stressful to spin. street wheels are many times particularly no longer straight forward as this permits the wheels to slip much less stressful on waxed surfaces for bluntslides and nostril/tailslides. Vertical ramp or vert skating demands extra suitable wheels (many times fifty 5–sixty 5 mm), because it is composed of better speeds. Vert wheels are additionally many times softer, letting them shop extreme velocity on ramps without sliding. Slalom skating demands even extra suitable wheels (60–seventy 5 mm) to maintain the utmost speeds available. in addition they must be comfortable and have extra sensible grip to make the tight and widely used turns in slalom racing. Even extra suitable wheels are utilized in longboarding and downhill skateboarding. Sizes variety from sixty 5 mm to a hundred mm. those severe sizes of wheels basically approximately consistently have cores of no longer straight forward plastic which would be made thinner and lighter than a sturdy polyurethane wheel. they are many times utilized by skill of skateboard videographers to boot, because of the fact the great comfortable wheels enable for comfortable and straight forward stream over any terrain.
