In general, yes the sidestand will probably be a little too long. Many things though, such as suspension free sag, can affect this.
I have run 17/17" wheels with a stock side stand on my past adventures. You just have to find a slightly off-camber place to park each time!
Brents347 Truckee, CA.
07 Yamaha R6
07 KTM 950 Super Enduro
04 KTM 250exc- plated two-stroke