Pilot SX Slick features a marked and very shallow tread pattern which is suitable for racing on hard tracks or in spring/summer time. This tyre is tubeless ready (TLR) to reduce weight and improve rolling resistance by around 15 to 25 percent compared to the same tyre running with an inner tube. However, as with all Michelin TLR bicycle tyres, the BMX Racing Line tyres can also be used with inner tubes. The tyre features a robust three layer 60 TPI casing to resist damage, improve durability and cope with tyre pressures of up to 5 bars. Tubeless Ready Tubeless Ready technology reduces rolling resistance for optimum performance More Lightweight The central tread of the Michelin Pilot SX Slick as well as the design of the side studs preserve the momentum table.MICspec { border-collapse: separate; border-spacing: 4px; } td.MICheader { background-color: #F6EA00; padding: 10px; text-align: center; font-size: 10px; font-weight: 800; } td.MICsku { background-color:#D9D9D9; padding:10px; font-size:8.0pt; color:blue; font-weight: 800; text-align: center; text-decoration: underline; } td.MICspec { text-align: center; font-size: 10px; padding: 10px; background-color: #f3f3f3; } Specification SKU DISCIPLINE TERRAIN TYPE BEAD SEALING ETRTO SIZE FITTING TPI WEIGHT CASING TECH MIN PRESSURE (BAR) MAX PRESSURE (BAR) RECOMMENDED INNER TUBE MIC-490631 BMX HARD PACKED,CONCRETE FOLDABLE TUBELESS READY 44-406 20" X 1.70" FRONT/REAR 55 420g TUBELESS READY 2 5 G4 Technical Information