3/32x13/16 Piranha. "Soft, Natural, Aromatic Rubber."  Alpha's Piranha tires really bite the track, especially when very clean and/or slippery.   And they feature high... more info

Sold in pairs. Made of natural (fish) rubber with magnesium hubs.           Diameter 23.1mm (.910) x Width 20.3mm (.800)... more info

1/8x.920 Big Hub Piranha.   "Soft, Natural, Aromatic Rubber."  Alpha's Piranha tires really bite the track, especially when very clean and/or slippery.   And they... more info

Sold in pairs. Made of treated Piranha rubber with drilled magnesium hubs.           Diameter 20.5mm (.812) x Width 20.3mm (.800)... more info

Sold in pairs. Made of medium Wonder rubber with drilled magnesium hubs.           Diameter 20.5mm (.812) x Width 20.3mm (.800)... more info