09-18-2012, 04:44 PM
I bought a used wheelset for its 36 hole Araya alloy rims. On these came mounted Continental 28 x 1 3/8 x 1 5/8 tires. The rims are stamped as 700c so I started pondering how these 28" tires mated and what might be their intended application. I've demounted one and these tires are massive; so are the tubes (with Presta valves). Also, the demounted tire would not re-mount on a different 700c rim (an Araya steel rim). The tire's bead diameter was just too small to stretch over the rim. So how is it that a 28" tire fits on a 27"/700c rim? Why would it mount on one rim (the 700c Araya alloy) and is too small to mount on another (the 700c Araya steel rim? And what did application did Continental intend for these tires; touring bikes, rickshaws, etc?
Here's a pic of the mate on the front of the wife's bike. FWIW, the hubs are Shimano without a model designation and the freewheel is for an 8 cog cluster. If that might give a clue to their vintage...
Here's a pic of the mate on the front of the wife's bike. FWIW, the hubs are Shimano without a model designation and the freewheel is for an 8 cog cluster. If that might give a clue to their vintage...