Vee tire & rubber SpeedBooster 20x1.75 Standard TireVee Tire Co. Speed Booster Tire 20 x 1. 75 Clincher Folding Black 90tpi. 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 Vees roadbike compound with 66 hardness now