>>1937723It's pretty hard to find bikes atm because of all the people who bought bikes at the start of covid.
As a general rule eBay is an okay place to look for decent second hand bikes and hopefully next year there'll be an influx of people selling the bikes they bought over covid and didn't use.
>>1947738Just go riding in winter, you don't need to ride super technical trails or do extreme distance just regularly ride and your fitness will improve which will improve your riding.