The durano plus 700c folding road tyre from schwalbe has been designed for maximum puncture protection the smartguard protection belt made of elastic rubber provides an unusually high level of protection for a racing tyre and is seen by most as the most puncture proof racing tyre around as well as unrivalled puncture protection this tyre also features a long service life making these tyres very low maintenance available in black only in 23 or 25c