Upper fifties here in the chicago suburbs yesterday. Got the bike out for a wash and ride.



Went for a one hour solo ride because all of my riding buddies are warm weather only riders.

MEH weather 'ere 2-4° - Fog, drizzle, pissin' dahn... still'n'all, got a pukka bike (GS500) to ride so 'tain't a prob', 'tis a pleasure even when the rear end slithers occasionally (rather often!!) from wet leaves/diesel spills/mud from tractors/hedge trimming/cyclists/walkers/HORSE RIDERS AND THEIR RATHER LARGE MESSAGES, y'know the usual bollards that come from living and riding every day in a quaint li'l English village...
 

I hope you are talking about 2 to 4 degrees Celsius. If you are talking farenheit you are crazy. I'll ride down to 32 degrees farenheit. That's my cutoff. Under 32 and I get my riding fix on the quadracer.



Currently replacing piston and rings. Hopefully done by the first snowfall.

My personal "record" is 17 degrees Fahrenheit, on my way home from work after midnight. I couldn't be prouder of my GS... and here in western PA, I like to keep the riding season going without an end!

I wish I had riding buddies... but all of them work opposite shifts 

ShowbizWolf that is impressive. Do you have the stock windscreen. I'm thinking about getting a taller windscreen for my winter riding. I won't be putting the gs away for the winter. I will ride if it's above freezing and if it's below freezing I will still start it once a week  and let it fully warm up. I find this easier than putting it in storage and worrying about charging the battery and old gas fouling up the carbs. I already had to take the carbs apart when I bought it because it was in storage for 11 years. Two of the Jets were clogged. I will be doing some winter maintenance. To do list.

1. Fork oil change
2. Brake fluid change
3. Clean and adjust chain
4. Check valve clearance

I installed a windscreen and nose fairing from a different bike... but IMO those don't help as much with the cold as my gear (layers) and heated grips and hand/wind guards.

One of my favorite pieces of winter riding clothing is my fleece neck warmer... it makes all the difference, keeping the wind off my neck and chin.

Anything above 32 degrees Fahrenheit (0 degrees Celsius) is great weather for riding!
I'm happy to live in a 358 rideable days per year zone:

I layer up, put disposable nitrile gloves under my riding gloves, and a balaclava under my helmet so I don't really get cold. My problem is when I pull the balaclava over my nose my glasses fog up. Hoping when I get my new full face helmet I won't need the balaclava over my nose.

307 rideable days in Chicago according to that map. I don't ride in the rain if I can help it and chicago on the average has 125 rain days so that right there puts me at 240 days. Subtract another 40 days on average of below freezing weather and I am at 200 days of rideable weather.

The answer to riding in the rain is Goretex everything and hippo hands. Not offbrand "three layer waterproof membrane" but the real deal Goretex with lifetime warranty. Boots, gloves, and one piece suit.

You can buy military surplus goretex fuel handlers suits for around $100 to wear over your riding gear. That's what I wear skiing in the PNW and you can be active in the rain or sleet all day and be bone dry underneath. The one piece of Gore-Tex gear to end them all is an aerostich roadcrafter but not everyone wants to spend that much on a riding suit. I consider it the equivalent of climbing into a car. Step in, zip up, and off you go rain or shine.

The hippo hands prevent water from getting in your gloves. It allows you to wear your jacket on the outside of your glove gauntlet to preven water intrusion but have the hippo hands block the wind blowing up your sleeve. Most waterproof gloves fail because water runs down your sleeves and into your glove.

Once you figure out the gear a day of rain is no different than any other riding day. I don't own a 4 wheel vehicle at the moment and live in the Pacific Northwest where its raining like 50% of all days. No such thing as bad weather, only bad clothing.