NSR5242 CLASSIC REAR 21 x 11 ULTRAGRIP for 16" dia wheels (917 optional)

CLASSIC REAR 21 x 11 ULTRAGRIP for 16" dia wheels (917 optional)

Standard equipment on Porsche 917, Porsche 908 models.

NSR rubber tires come in 3 compounds:

SUPERGRIP  >  ULTRAGRIP  >  EXTREME

hardest, least grip  >  softest, most grip