Tioga's Powerblock Tyre were designed to balance traction and low rolling resistance for both front and rear tyres. They feature a centre block designed tread pattern for low rolling resistance while the sides feature a smaller block pattern to add traction and grip through carves. UTC rubber compound patterned sidewall adds abrasion protection while maintaining casing suppleness. Max pressure rating: 65 psi ###section### Product Specs WHEEL SIZE: 20" MAX PRESSURE: 65 PSI WEIGHT: 283g (10oz) PACK SIZE: Single Colour: Black; Size: 1.75", 1.6", 2.1", 1-1/8", 1.4", 1.95", 1-3/8"