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Just in case anyone is confused by the different ratings scales, the easiest way to work things out is like this:
A scale - only goes up to 100, so technically you can't have a 101 A wheel, but a lot of companies do it anyway.
70 - 80 A way softer than everything
80 - 89 A is a very soft skateboard wheel, more for cruisers and the like
90 - 95 A is still a soft wheel, but can usually make noise and slide more like a normal wheel
96-97 A is a slightly softer / more girppy wheel, but way more like a normal wheel
98-101 A is a "normal" skateboard wheel, hard and fast, will make noise when sliding more often than not
B scale - 20 points lower in comparison to the A scale, but can go a lot higher than the usual A scale too.
80 - 84 B equals 100 to 104 A, if there was a comparison, so they are "off the chart" so to speak when being compared to the A scale.
Working in skate shops and being very aware of this, I have seen many times where people get the scales confused, or don't even realise there are two different scales, so people who want soft wheels buy Bones 84B, or others who have had hard wheels buy the 80 duro wheels, or something like the Spitfire 80HD (80 on the A scale) or something similar thinking they were hard wheels when in fact they are not and are very soft.