Following this thread. Sooner or later I'm going to need some new rubber, too.
EDIT: for comparison, here are the relevant ratings on the Firefly's tires, which have good rolling resistance properties. Maybe (?) this can be useful in deciding on replacements...
Goodyear Invicta GL M+S (79S)
155/80/13
Max Load 436 kg / 969 lbs @ 44 PSI
Treadwear 260
Traction A
Temperature B
Tread: 3 plies (1 polyester cord + 2 steel cord)
Sidewall: 1 ply polyester cord
Made in Canada
(originally posted in this thread:
http://ecomodder.com/forum/showthrea...year-8779.html )