Winter Cycling - too cold or too sweaty

does it always have to be that way? Once I warm up I feel fine but I pretty much sweat all around and I am worried that I am losing too much body heat through the moisture during 2-2.5 hour rides in 30-36 degree weather as I feel ill and have a high hr for a couple hours after.

also I need something to keep my rear end and junk area warm what would that be?

You should'nt be sweating in the cold. Remove some layers, use a more permeable shell layer, start cold and when you heat up, you will be comfortable. If you need to dress warm at the start, use some insulation over your shell and remove it as soon as you need to cool down.

I ride in long legged winterbibs with a seamless shorts under. That takes care of my privates, when really cold I will wear ski underpants with a windfront. Polyprop mesh longsleeves and a woolmix longsleeve under a Craft windbreaker jacket on top. Wool socks in Shimano winter boots and ski gloves and a buff under the helmet keeps me comfortable for most of a ride in the temps you describe. I sweat a lot and will get cold feet and hands after an hour usually. Most days I just ignore it but I will carry an extra pair of gloves and wool socks and change if it gets too bad. The elevated heartrate might just be that you are training harder than you should, back off on intensity or duration and see if that helps.

Dress for the last half of your ride, not the first half. The first part of the ride should feel a bit chilly but not so cold that you are uncomfortable. I keep a log of what worked best in certain weather conditions so I could be more prepared the next time.

Sweating is normal during a good work-out in any weather. Wear multiple layers that breathe. The perspiration needs to be transported away from the skin to the outer layer to aid evaporation and to reduce heat loss. Add and subtract layers as needed.

Never wear any cotton.

I sweat a lot in any weather. When temps are near freezing I wear a wicking tee under a wool sweater under a thin shell. I sweat but I don't get too cold because of the wool. If I wasn't riding I would be way too cold dressed like this.

novara headwind pants with cycling shorts under. your junk will thank you ;)