higher

I live in Colorado and have been using 91 octane with ethanol in my 2010 FE450 since day one. Also use Techron and Seafoam often. No fuel pump issues yet... Going forward, should I use: 87 octane with NO ethanol (from lake marina) OR 91 octane with up to 10% ethanol

I put a tall seat on my bike because I was having trouble getting forward on the bike with my long legs. But now the bars are to low. I already have the ktm type raising blocks 20mm I think. I always struggle to get the bars right standing up, but sittings normally fine. The bike is a 2010' FE...