It's only a month. Takes a fair while.
Leg strength is not the problem. Chris Hoy is a very very poor analogy.It may not be pointless, leg strength might be the problem too? People aren't necessarily born with the thighs of Chris Hoy. I had exactly this problem when I started riding a bike, but I didn't realise it at the time. Agreed that it's not necessarily that likely to be the problem for everybody and endurance is definitely something new people have to work for, but once you achieve it the benefits are huge.
THIS - Ignore the idiots above ! You have to keep at it - progress will come. Oh and ditch the cigs !
which 'idiots' are you referring to? I can't see any replies here which I would regard as 'idiotic'..??
You are far too serious some times.
The OP has only been riding a month, and about 3 times a week. Improvements take time. More carbs/weight training - not really necessary just yet - he just needs to stick at it, keep riding and slowly increase the miles.
squats. It builds your legs.
Helped me. Just a few a day and it worked wonders.