Alpha Treated Piranha
Magnesium Big Full Hub
AL 5118T
3/32" x .760" dia
Big full hub .485" (12.32mm)
chemically treating the rubber to alter it's characteristics.
The treated Piranha rubber is a bit firmer,
and has a bit less grip.
But it also is longer wearing and because it has less rolling resistance,
is faster on the straight-aways and in the bankings.
Try it if the regular Piranhas seem a bit too soft and grippy.
These tires are for those of you like the "euro" style hubs.