|I used to ride on very stock skates and never knew anything about wheels. I recently got wider trucks and was skating on 99a wheels from Spitfire. I loved the speed, but did not like the flat spots. My SPF's are ready to go and I will keep you posted once I skate again.
: : : But this is interesting. The inliners skate on 88-90a. Is it that a wider wheel has more grip too?
: : That's one reason. The other is that the wheels are in one line, not in two tracks.
: yep, that's tricky because the sliding point depends also on the pressure (force*area) applied on the wheels.
: Maybe as quads have a wider contact area and our trucks can impose a higher force, by tork effect, the harder wheels are needed? (This is an interesting subject for my students!)
: Nevermind, PF or new school 95a skateboard wheels are magic: still grippy!!!! I learned ramp with hard artistic quad wheels (another hardeness scale), they were like stones (not the Claudine you know ;-), well like rocks if you prefer!!!
: : Maybe I should call this site 4tracks ...
: Origin8 is really good!!!! (In side stance it's 2tracks??)