Riding through broken glass: The new Marathon Plus with - SMART GUARD - makes it possible thanks to the highly flexible special rubber layer The revolutionary feature of this new puncture protection system is due to its 'super-ball' characteristics The Smart Guard special rubber protection belt is so flexible that it has no effect on rolling resistance. In fact whereas traditional puncture protection systems increase a tire's rolling resistance. The approximate 200 gram extra weight compared with the 'classic' Marathon is hardly noticeable in everyday use
MARATHON PLUS TYRE FEATURES:
Smartguard rubber layer gives ultimate puncture protection
No increase to rolling resistance
Even drawing pin proof!