Review from
Cycling Plus
Thanks to its thick layer of springy sub-tread rubber - called SmartGuard -the Marathon Plus is virtually immune to through-the-tread punctures...even drawing pins won't penetrate. Apart from the slight speed loss, the only real negative is the dificulty in fitting them: I needed a helper and a pair of Pedro's Milk Levers. Still, they're so unlikely to puncture that this isn't a job you'll do very often.
In conclusion...
Almost impregnable. Heavy and hard to fit, but faster than you'd think.
Rating: 8/10