Born in BMX racing competition, Speed Booster is designed to meet the demands of lighter weight, better stability when cornering, good rolling resistance at high speed and grippy contact to the track, thanks to new developed LSG compound that is used exclusively for the Speed Booster. Folding bead BMX race tire. LSG compound: Based on Vee's roadbike compound with 66 hardness now applied for BMX racing with great rolling resistance for hard pack circuit but at the same time holds grip from start, with fast cornering. Item Specifications: Color: Black, Defined Color: Black, Intended Use: BMX, ISO Diameter: 406 / 20 BMX, Labeled Size: 20 x 1.6, Tire Bead: Folding, Tire Diameter: 20, Tire Type: Clincher, TPI: 90, PSI: 110,