I just finished a 1300 miles tour with a 28mm Pracer Tserve front and 32mm Pracer Ribmos on the rear and trailer. I loved the Tserve and the Ribmos. No flats-though I did pull a staple out of my rear Ribmo after I heard it rubbing the fender as it rolled along.

The defining characteristic of the Ribmos is the triangularish cross section to the tread which gives the tires a good 1/4" (6mm) of rubber along the center. This thickness, more than any of the fancy kevlar/aramid layers, give the tires good flat protection (maybe 100x? ). I've heard of Ribmos lasting 8000 miles a set. With 1500 miles on my rear tire and little wear showing, 8000 seems reasonable.

The Ribmos did not ride like a truck for me. The tire is heavy but most of that weight is in the center rubber, the sidewalls were reasonably supple for a 32mm tire that can run 100psi. (I'm excited when after 5000 miles the tires are nice and light!)

These tires are slicks so I noticed a speed boost from the more treaded 28mm Tserv and 28mm Conti Contacts I've used previously. They had good grip in the rain. They even worked OK off-road the one day I did 30 miles of backwoods riding. When I say off road I mean logging trails with sand, gravel, and rock gardens. Gravel roads and rail trails are cake for these tires.

I bought these tires because I wanted a slick, flat resistant, long wearing, and nice handing tire for little money. (23 per through J&B) They've definitely delivered. (No I don't work for Panaracer)