I really believe diet is the most important component of body building... there is no doubt that you have some good genetics and your training is working for you... just keep in mind that only thing that really makes you grow is food...
I kid you not, but I eat the exact same thing every week day at the exact same time... everything is weighed on a digital scale down to the last gram...
250G's protein is probably enough for you body weight... but I would also focuss on getting in about 500G's of good carbs as well along with a moderate amount of healthy fats.
If you are serious enough to start cycling then you should be serious enough to get strict with your diet :)
It took me a while to figure out, but diet is very important!!!
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