TR-6 tires (tyres?)

[mit-eddie!ames.arc.nasa.gov!elan!jlo@EDDIE.MIT.EDU (Jeff Lo)]

Does anybody know what size tires the TR-6 originally came with?
I suspect that the tires on my new (?) TR-6 are considerably smaller
than stock since the speedometer is rather, um, optimistic.  It
appears to be reading 20-25% fast.  The tires aren't going to last
much longer, and I'd like to get replacements which will give me
reasonable speedometer readings.

                                Jeff Lo
                                jlo@elan.com