Schwalbe One Plus Tire - 700 x 25 Clincher Wire BLK/Reflective Performance Line SmartGuard AddixSchwalbe One Plus Tire 700 x 25 Clincher Wire Black Reflective Performance Line SmartGuard Addix. The One Plus tire provides maximum puncture protection thanks to SmartGuart perfectly suited to be a care free road bike tire for training commuting and urban areas. SmartGuard provides an effective protection belt for bicycle and e bike tires using 5 mm of highly elastic special rubber ADDIX Performance Compound utilizes a very durable rubber compound