Originally Posted by af895
The Marathon Plus has a built in liner - it's pegged as an urban tire as it'll absorb a thumbtack without puncture. It's not billed as a touring tire as that liner increases RR a lot. (I'm told)
The Marathon Plus 700x28s I run (they actually measure 30mm wide on my rims) have a lot of inertia (ie: takes extra effort to get them rolling, but takes less effort to KEEP them rolling), but they feel like a very low rolling resistance tire to me. My previous recent experience is limited to Panaracer Pasela TG, Schwalbe Marathon Slick and Specialized Armadillo Nimbus EX. The Plus seems to roll as easily as the Panaracers and Marathon Slicks and FAR easier than the Armadillos.
I like 'em and would be totally satisfied with them for my commuting needs if they weren't so incredibly hard to mount. I've had one flat with them, but that was caused by a 2" nail that would have flatted anything with air in it.