Molecules contract in Winter so ur engine will react to it

[jacks_bike]

Molecules contract in cold weather. Your piston will be a little tighter and pedaling a little harder making the engine work harder to get going. If you can - place a heater near your engine an hour before you go out to warm everything up. Cold weather will wear down the piston walls and rings faster if you just jump on and go in the cold months. - These little engines will get frozen to the bone in just a few hours.

 

[loquin]

Yes - the aluminum in the cylinder contracts more than the steel in the rings & bearings...

A tiny amount, true, but, it will lead to more wear than in the warm months.

Let 'er warm up first, too.