front tire replacement

[Layna]

i want to replace the front tire to a larger size- it calls for a 80/90-h21 , currently a 90/90 h21, would like a mh90h-21 from michilen , a commander. will this fit ? will a 100-90-21 fit?

 

[mataama]

Why the larger size. It will thow off the handling.

 

[Pinkie43]

Generally speaking, 10mm is the most you want to go over stock. The tire will be deformed too much otherwise.

 

[assie]

Clint is right- the 100 is outside what is recommended for the stock rim size. It would probably rub the fender too, so you'd have to elongate the mounting holes.
If you really want a fatter front tire, swap over to the 19-inch front rim, which takes a fatter tire and frankly handles better than the 21-inch rim. Your 21-inch rim is popular with those who like the tall, narrow, chopper-like style of it, and more expensive from the dealer, so you can probably trade with someone for a 19 inch and get them to pay shipping and maybe some cash too.