| I am assuming your are talking about the width of the tire when you ask about the largest one you can install. I believe the stock tire is 130 mm wide. Depending on the fender, you may be able to stuff a 140 in there. What you have to watch for is interference with the bolts that come through the fender rails to the inside of the fender, and for any interference with the drive belt. If the tire is to wide it will hit the fender rail bolts when the suspension compresses. | 
