You are drawing a conclusion based on an extremely small sample size. Cold did not kill those motors - anything with a thermostatically controlled cooling system will barely even notice.
Yes the bikes with liquid cooled engines won't notice overheating or cooling but you forget, when your sports bike is parked in the garage for 3 weeks in a row in -10, -25 temperatures, then two days later its +5, +10 and you take it out for a ride, things like internal parts contract and sudden start after freezing cold temperatures and going for a ride.. your timing chain expands prematurely. When your bikes stays off all winter long and you start it in April, by then the internal parts have gone back to normal temperatures, and there is no real big difference between outside temperature in inside temperature, and nothing to go wrong, as the internal temperature has come warmer with the outside over time, in winter, the internal parts hit such low temperatures, and then warm engine temperatures that is affects parts like timing chains adjusment tremendously, specially on a super sports bike engine of high revving capabilities.
And since the engine applies sudden heat to the internal parts in winter, even though timing chain should be done every 18 to 20k, when i was riding all year, i realised i didn't expect to have redone the timing chain in under 3000 kms, with extremely shiit weather here "temperature fluctuations" metal expands and contracts...basic science! even INSIDE THE ENGINE! so what happened was the chain skipped a tooth as it stretched too much & blew the head (from riding in cold weather then it cooling off in freezing temps right away, then starting it again and sudden engine warming) ever hear that ticking noise from inside the engine after shuting the bike off? parts are contracting "cooling off" .
IF i had taken this into account both times my bike would be alive, but i was also told riding in winter alot causes alot of stress on the internal parts of the engine, mild weather is best... too hot or too cold is death for an engine. And thats when i realised why my other bikes lasted forever because i did regular maintainance, for "normal" weather seasons, and only rode them in "normal" weather all the time, so there was never extra claculation, or early service needed to be done due to change in weather, and nor did extreme weather such as winter cause and change in the parts itself internally.
Once i realised this i decided i'd never ride sport bikes in less then 15 degree temperature, to me it's just not worth it, due to the fact super sport bikes are so high powered, high reving and high stress engines one small maintanince lapse and boom engine is gone, or there is a bike problem.
The best bikes for winter are single clinder carb supermoto's like drz 400's yamaha 250wrx's etc. even those can be a pain because you have to service them ALL THE DAMN TIME.lol
2Wet should get a Ural. Ride all winter long then.
No thanks lol, i got me a nice 4X4 for winter, i can't be bothered with the winter riding crap i did to save money when i was in uni, never again being a student sucked aSSS!!, it's just not worth it, when you get a bit older in your mid 20's you start to feel the "cold" bones from the excessive winter exposure. I just can't be bothered to ride anymore street unless its 25 plus, LATE at night 4am, just me and not a single fkin crackhead on the road.
Im sick of the all year riding i did for years in uni... took the "giddy fun" out of riding & it became a transportation/chore thing, i want to ride to put a smile on my face, not because its all i got and no other option. yea its kinda fun once or twice taking the dirtbike out late at night and playing in the park in snow, but thats as far as i go now in winter.
The other reason is that there just TOO many careless crackheads driving around in Canada, i once almost got ran over by a civic, and the driver kept appologizing, and i kept saying its cool, im not angry at you anymore because you manned up to your fault & that instantly cooled me down, then he replied i feel really bad, because i give shiit to cagers because i ride too and here i am in a cage almost running you over, its November, i just didn't think there would be anyone out riding now, he had a good point, but then again as a rider you should know anything can happen anytime....
So winter is more dangerous because its true most people don't think that anyone would be riding anymore so it makes the sub concious not look for riders when you drive in winter, in summer bikers, scooters, cycles are everywhere so drivers automatically subconciously remember to watch out for two wheels.
...anyways it came to a point i just put my hands up and said, its not worth it anymore....this is coming from a guy who's crashed more times then you can imagine, so much so, my local hospital nurses know me by first name and i'd get personalised hospital wrist tags sent to me to my house back in the day!!!! in 4 years of my uni, i was in the hospital every 2 to 3 months, for 4-5 years, shiit got old QUICK!!
I can understand why people ride in winter, but when you do it for years and all year round, your basically going to with your own accord kill your desire to ride street. You know that feeling you get after riding the bike first time after weeks. thats what i want to feel like every time i ride my bike.