Fast Trak Armadillo Tire - 29 x 2.1"

Punctures suck, which is why Specialized incorporated their legendary Armadillo flat-resistant technology into the Fast Trak Armadillo tire. Not only that, but Specialized also took the tread design of the Fast Trak a step further by manipulating each knob with Finite Element Analysis. Paired with extensive rider feedback and design experience, the result is an XC tire with less rolling resistance and more traction, all with Armadillo puncture protection from bead to bead. Features Casing: 60 TPI Bead: Wire Compound: 60a Flat Protection: Armadillo 29 x 2.1", psi 25-50, approximate weight 850g 29 x 2.1", psi 25-50