Im riding in london and its cold right now
Pretty sure its your jacket.Im using a merino base then wicking nike shirt and normal cycling shirt and on top my gortex jacket which really breaths well.If your top layeris trapping the heat you will sweat,simple
artray

I`ve used similar to this inside a cheap rain jacket(no breathing), without feeling uncomfortably moist:



Gives you a layer of air between your skin and whatever next piece of clothing you use

We have had some colder temps this past weekend, on the east coast of the US. Usually when it starts to get cold, I put on the bib tights, I can always adjust the top half, but I hate just leg warmers, so I go with the tights.

For the upper half, depending on temps, I either go with a standard light Defeet base layer, regular Hincapie racing jersey (Get points for still wearing the team kit), a long sleeve jersey (fleece lined) and a wind vest. Maybe a cap. Gloves are usually Defeet wool, or when it really gets cold, something thicker.

If it is colder, I go for a wool base layer, thin, bib tights again, jersey on top of that, thicker long sleeve, and then a thicker vest. I have hte team vest and another Hincapie signature vest which works great when it gets cold. Beanie for the head, usually always run shoe covers in the winter, since I like light weight wool socks, sometimes have to put on thermal booties if it really gets cold.

For those who state the Turbo trainer, 5 hours on a trainer is close to being in a torture chamber, if I can ride outside, I will.

HUMP

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Why are the best things in life always the ones you start last?

Many good points already, here's what I'm doing at the risk of stating obvious things.

In general, I'm using several thin layers, and no thick one, trying to keep the layers breathable (no jacket unless it's raining). Except for feet, head and hands, I'm always trying to keep them extra warm.

Stay variable, so you can adapt while riding. All my layers except for the thin shirt at the bottom have at least a zip neck, so you can open a bit when heating up. Around 10°C I usually only have a single long sleeved layer (with a thin shirt underneath, and jersey and thin vest on top). Then add arm warmers, because they can easily be adjusted or removed.

When riding with jacket in bad weather I always keep the cuff velcro far open to catch some wind, that pushes some fresh air to your torso.

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Bikes: Raceur, Beateur

Ditto - I'm in London, and I reckon its cold Also I just use a long sleeve merino base and a rapha softshell jacket on the top, long bibs, decent gloves, merino hat and toasty feet (a few options dependant upon how cold and how wet). If I start to overheat, which isnt likely, a half zip on the jacket soon cools me down. Thats warm enough for riding, but I do get cold if I stop.

That said, this is for longer rides, if I were doing an hour of intervals or something then I'd replace the softshell with a long sleeve top.

As mentioned previously, just sounds like the OP is wearing too many layers - take one off and see how you get on!

Agree with that post... it takes some time to figure it all out, but write it down for the conditions...

for example... it might be 40 degrees F out, but there is a big difference in what i need between a calm and sunny day and a cloudy, damp and windy day... they are light years apart even though they're the same temp...

^Good point! It always pays to factor in wind speed, humidity etc. Just looking at the temperature may get you miles off.

and intensity. A hard training ride is completely different from commuting or taking it easy.

I've had great luck with the Capo Limited Edition jacket... great jacket..... good from 50 degrees down, depending on how i layer...

it takes a bit of time to figure out what work for your... everyone reacts differently to the cold...

By hard training, a friend of mine prefers cold weather, don't know how much is this true but I can't endure and I make short rides in the vicinity of 20-25 miles. In winter while training I'm always asking this question to myself: Where's the sun?