Scientifically developed to meet the high demands of professional mountain bike racers the joes no flats elite racers sealant instantly seals punctures in the tread up to 6mm it seals small slits faster and more permanently than any other sealant on the market this sealent is designed for use in tubeless tires tubular and inner tubes key features joes no flats elite racers sealant 500ml scientifically developed to meet the demands of professional racers instantly seals punctures