I have never smoked and never intend to, but one thing to think about is that you're tobacco's bitch, fight it! Imagine that each time you smoke, you are giving in and becoming less of a man, and you can't even control yourself, you let the tobacco rule you, FIGHT IT! (sorry if this made it worse, but if you think of it more as a fight than leaving something behind it might be a bit easier)
Also, when you get cravings, its probably best to find something else to occupy yourself with, do you enjoy doing anything else other than cycling? Do you have a punch bag? Treadmill? Weights? Whenever you get cravings just take it all out on the punch bag, or sprint on the treadmill, or lift the heaviest weight you can. Just do something to distract you from wanting to smoke and something which will make you feel good at the end.
Someone I know said they really enjoyed it when they smashed a chair off the ground(argument

) Maybe you could find something which you could smash, and whenever you get cravings just smash it to bits.
I've sorta babbled on here, hopefully it helps, I've never been addicted to anything, but those would be the steps I would take if I did get addicted.
Good Luck! You don't need luck, you can do it through willpower alone!
