I read through this thread thus far, and can't believe that almost
everyone missed the most important upgrades...IMHO.
GEAR! Clothes! Undergarments! Call it what you will...
If you're not comfortable to your core...all the add-ons, accessories, music, lights, seats, backrests, highway pegs, intercoms, FRS/GMRS radios, tools, and gadgets won't mean a DANG THING!
It's taken me two years, but now I finally have all the right gear. From 10° to 110°, I am comfy cozy. And all without having to tow a trailer to carry it. My trip down to Spring Training Camp for Riders last week on my Ninja really tested my gear. I left Cleveland, Oh and it was 37°. My Gerbings
jacket liner, gloves liners, pants liner, and socks really did the trick keeping me warm. Oh...and don't forget the dual-control Heat-Troller
Other than my Gerbings gear, I have two sets of under-garments. One for cold weather, and a few for hot weather. Schampa Skinny's
work perfectly when it gets cold, with or without the Gerbings...depending on just how cold. UnderArmor
undergarments are awesome for keeping you cool when the mercury rises.
I also have basically two BMW
outfits that I wear. One for the cold and/or rainy climates (BMW's Light 'n Easy), and the other for when it gets above 70° (BMW's Commuter II).
Oh...and make sure you can wear your helmet ALLLLL day. There's nothing worse than a helmet that starts bothering you by noon, and you want/have to keep riding until 7PM.
Once you have the proper gear, you can add all the other stuff. Like I already did on both of my bikes!