ULTRA Series

ULTRA Series

Challenge ULTRA Series handmade tubulars are the absolute pinnacle of performance. With 1000TPI silk casings and our SMARTSOFT tread compound, they are the best performing Race Day tires you can buy. 






  • ULTRA Series, Silk Casing, SMARTSOFT Compound, PPS
Regular price $149.99
  • ULTRA Series, Silk Casing, SMARTSOFT Compound, PPS
Regular price $149.99
  • ULTRA Series, Silk Casing, SMARTSOFT Compound, PPS
Regular price $149.99
  • ULTRA Series, Silk Casing, SMARTSOFT Compound
Regular price $149.99
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