For those of you who know the difference, Schwalbe Marathon-plus tyres are the best puncture resistant touring/commuter tyre out there. They are truly tough and long wearing. Marathons are almost slash proof, and they accept high pressure thereby protecting your wheels. They come with reflective striping around the perimeter, making you light up at night more effectively.
Tyres sizes below. All are priced the same. Some are on an order in basis.
20’x 1.75 , all around road/ commuter. (found on Streets and Carros)
26 x 2.1 knobby off-road tyre
26″x 1.75 all-around touring/ rail-trail / commuter version. (found on Sprints)
26 inch x 1.75 Marathon Plus Tour (has off-road tread but good on roads as well.
28 inch (700mm) x 38mm Marathon Plus (found on Torq Alfine and standard Torq)
26 inch x 2.35 Rock Razor tyres (not technically a Marathon series but has kevlar puncture resistance) (found on Raptors)
German puncture-resistant touring/commuter tyre, found on many Ezee bikes.