The Maxxis Holy Roller uses an inverted knob design making it a versatile performer from dirt to pavement. Single compound 60 TPI casing Category: BMX, Dirt Jump, Pump Track, Urban Recommended use: Hard pack, pavement/asphalt, skate parks Recommended installation: Front or Rear Part: TB29478000 Size: 20X1.95 Etrto: 53-406 Tpi: 60 Bead: WIRE Weight (g): 484 Compound: SINGLE Max Psi: 60 Color: Black Application: BMX