2008 Honda GL1800 (Pearl Whie)
Wingsoft seat modification, which helped my wife a bunch, but not so much for me, so I got an AirHawk R seat cushion and doubled my comfortable ride time.
Wheel and Tire
Just have a basic Garmin Nuvi 5" mounted with a RAM Mount. Also added Bike MP3 accessory cord with noise suppression so I can use my iPhone for music into helmets.