I haz a mountain bike, its a halfords cheapo special, but is safe for my weight,
i once jumped it off a kerb.
that is all 
I've always wondered how people put so much weight on so quick after giving fags up?
My understanding is it takes awhile for the mind to catch up with the body.
More healthy = Appatitie goes up
Being active stays the same = weight gain.
Increase activities as you have more energy, but lungs wont catch up to activity!
I might give fags up with you Chuff and I love fags