In Europe all gas cars, and I guess bikes too, are ready to run with ethanol since 2008, or so.
I run for years my non diesel cars with E85. Mini, CLS, and even my 1993 Chevy Tahoe with it, with no harm.
Cost 0,7 a liter instead of 1,8 €.
On the R 18 tank is written E5 or E10.
So ethanol is ok...