Michelin’s screwy tire designations

[RM_guy]

Does anyone have an equivalency chart the shows what a 100/90 and 110/90 tire is in Michelin’s wacked out worked of tire sizes? I think the 110/90 is equal to a 130/70. But I’m confused. I got a good deal on a S12 120/80-19 and now I’m thinking it’s too small for my bike :( Help!

 

[Farmer John]

100/90/19 = 120/80/19
110/90/19 = 130/70/19

 

[RM_guy]

Thanks a lot. That's what I thought it was but was hoping different. At least I have a buddy that will buy it off me for the same great price I paid :)