I was going to buy Michelin Agilis 51 (215/65R15) but I am having a hell of a time finding them. However, 215/75R15 tires seem plentiful. So it is time for me to spark a tire debate, my questions are as follows:

1. I am pretty sure 215/75R15 is the maximum size for the spare tire bay without modification. True?

2. What is your favorite 215/75R15 Tire?

3. Apart from speedometer error, what disadvantage do I face with a higher profile tire?

Thanks,
Chris Gronski
'80 Westy "Pokey" - SLOPOKEY
'87 Chevrolet Sprint - Ice Racer
'91 Pontiac Firefly - Convertable