Schwalbe lugano tubular road tyre k guardthe schwalbe lugano tubular road tyre with k guard protection is schwalbes most economical tubular tyre it features a high quality 50epi carcass and kevlar reinforced k guard puncture protection making it extremely durable and reliable features bead tubular compound silica casing k guard pressure 70 to 145psi weight 330gtechnologies active line the basis for all active line tyres is a high quality 50epi carcass schwalbe no longer produces tyr