I installed my winter accouterments on my 2012 C5 Desert Storm today.
I'm afraid I gave up a little visual cool, in exchange for what I hope will be a little less physical chill for me, and a very few dollars spent.
Included is a small windscreen, some quilted handlebar muffs, and a pair of lowers I made for my engine guard. Here's how it looked beforehand:
The windscreen came from Amazon, shipped for around $40.
https://www.amazon.com/Windshield-Kawasaki-Davidson-Sportster-Boulevard/dp/B0192KW3VC/ref=sr_1_29?crid=18YE00Z847FVV&keywords=motorcycle+windscreen&qid=1573430249&sprefix=motorcycle+wind%2Caps%2C218&sr=8-29It comes with all the hardware, but the handlebar clamps don't really grip the bar tightly enough to be secure, so I added struts to stabilize to the fork clamp bolts. These were made of .050 5052 aluminum, bent to a 3/4 x 1/2 channel with an flange at the bottom end. I also wrapped two layers of adhesive backed .040 rubber sheet around the bars to give a more secure mount at the handlebar. With this extra fussing, the windscreen is secure, but still on the small side.
The mitts were mine for less than $10, including shipping, from a seller in China.
https://www.ebay.com/itm/Waterproof-Motorcycle-Handlebar-Gloves-Hand-Muffs-Motorbike-Thermal-Warm-Mitts/372747742880?hash=item56c97f2ea0:g:yi4AAOSwPg9cEIUzThe lowers I fabricated from two 10 x 20 cutoffs of .050 5052 aluminum sheet that I rescued from the scrap pile at my employer. if I wasn't so fortunate as to work for an employer with a metal shop, I could have bought the aluminum online for around $25.
https://www.onlinemetals.com/en/buy/aluminum/0-05-aluminum-sheet-5052-h32/pid/7127, but I would probably have used the 1/8" thick HIPS plastic sheet that I already had and used to create a pattern. I might even have tried corroplast.
The lowers are just nylock strapped to the engine guard, and have to be considered as disposable, extending as they do, beyond the guard. This is they first year I've put on winter gear. I'm not expecting a whole lot of comfort for my $50, but I expect it will help.
The stock EFI engine in my machine, definitely doesn't care much for the cold, it's a little harder to start, sometimes taking up to 3 kicks, and misses badly at 1/4 throttle until it's warmed up. Once it is good and warmed up though, it seems to run as strong as ever and quieter than in summer.