avg winter speeds

So we all know avg speed is down this time of year but just wondering how far down would they actually be if instead of the old winter hack i was out on the good summer bike for the same effort.
Lapierre Aircode 300
Merida
Merida
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Merida
About £4.50
Merida
uphill has slowed probably due to the extra clothing, heavier rubber and all the lights stuck to me .. I weigh a tonne this time of year
No need to 'wonder' - ride it and find out.
Went out on the race bike last Friday and it felt like I was pedalling air.
IG: RhinosWorkshop
I agree with Ryan.
Its about fitness.
Merida
And yes, I can feel that without a speedo.
1. Time is a funky variable and an unreliable guide. There are often times when a storming ride produces what seems at first glance a pedestrian time. It is still a storming ride.
2. Before speed measurement became so easy, journeys were often times door-to-door to the nearest few minutes.... Somehow that seemed more honest.
3. I know that I am a lot slower in the wet, even when pushing. I just do not descend or go into bends carrying as much speed, and that means exiting bends and reaching the bottom of a descent with lower speed.... it all drags down the average speed even though the rider may feel that he or she is right on the rivet for the whole hour.
My advice: Take those computers off from time to time. Training with no screen to look at and no HRM is liberating.... not on every ride, but on occasion.
Zwift has nothing to do with cycling.
So do not mention it.
What?
Some factors that I perceive as being relevant to the difference in my speed - clearly some make much more difference than others:
My commute is by far my most regular ride - 30km with about 300m climbing. In summer I average just over an hour. In winter it's roughly 5 minutes slower if I'm on my summer bike (when there's no ice risk), about 10-15 minutes on the winter bike.
What always gets me about changing bikes is that it just feels so much faster and so much less effort on the summer bike.
I use my road cycling as training to get better on Zwift ... somewhere its all gone wrong !
I also handle the bike differently around this time of the year.... i.e. more cautious.
One thing I have noticed is that when it is windy this time of year (like it was on Saturday), it's a lot harder than when it's windy in summer.
I'm still managing to maintain 13/14 mph averages on my hybrid though.