How about this app?

[racerboy]

Avon AM 26 Roadrider 120/80/18, to keep in compliance with the rear aspect ratio of Avon AV72 170/80/15. pls advise fellows

 

[jfeagins]

https://www.tacomaworld.com/tirecalc?tires=120-80r18-170-80r15

 

[[email protected]]

Do they make this tire in a 170?
Largest I saw was a 160/80/15

 

[blaxmax]

Do they make this tire in a 170?
Largest I saw was a 160/80/15

http://www.jpcycles.com/product/212...e=&network=g&gclid=CI-h9PvD68oCFQiUaQodjd8NBg

 

[[email protected]]

Guess I should have paid attention to the fact he is looking at 2 different types of tires. :bang head: No 170 in the AM26.

 

[racerboy]

Well, guys,
My intent is to run a 120, but wanted to keep it an 80 ratio vice 90. so, All I found was a 120/80/18 which is a rear tire profile, but then Im thinking why not for the front? I'll order it, give it a try. Glad I never ever have issues with race tires for my track bikes!!