I'm beginning to bike more and more now and I wanna go and rides with some other fixed gear bikers in my area but I don't think I can keep up with them.
They have these 50 mile rides once in a while and I want to go but I think I'd be too slow. Besides that, they have weekly rides on different days of the week.
I'm not too slow but my stamina sucks.
How can I improve my endurance and bike faster and longer? Is a there any type of good regimen or plan to improve?
Also, how can I get up hills faster?
My bike, constructive criticism is appreciated.