I've had two stock Bridgestone, one Metzler Marathon ME 880 240 and a Dunlop E3 240 on mine and next week I will have the new Michelin Commander II tires front and rear 240 on.
The Dunlop gives you a more rounded platform. Rolls into corners similar to standard cruiser tires. The Metzler puts more patch to surface down due to it's 3 independent steel belt design and there is a noticeable difference. Metzler has been giving me 30% more life than other brands on all bikes throughout years. I haven't tried Avon because I'm told that they don't do well up in this area.
As for lowering, I've had mine at 2.25" but currently at the 1" because the Dunlop rolls further to manipulate corners and I was dragging pipes. Also for two up riding you want to grind the tabs of the underside of the frame as mentioned. If I had the adjustable links I would lower it to 1.5 or 1.75".:thumb:
Info and pics of the Michelin next week.
I also will be the first to be able to describe how two different brands of tires feel on the same bike brand new, not going from a worn out tire to a new one. Have only 2,000 miles on the E3.

