Last time I swapped that Metzler Lasertec original (hated it) for an Avon AM26 Roadrider (loved it) both were 110 80R 18 as per manufactures suggestion. I read in earlier posts that some had tried the Michelin Commander II and liked it but it only comes in a 110 90R 18. I seem to remember reading that that extra 10mm should not make a difference on my 07 Speedmaster but I can't find the reference to that conversation in the search. Any thoughts?
