OK heres da deal i am 19yo when i went to HighSchool i was relatively fit as i participated in lots of sporting activities such as soccer rugby league an such (never at da top level of course just for fun) this ment i was exercising like once a day! for atleast 90min but since i have left HighSchool and started uni i havent been involved in any sports as such and have only been gettin in like 2hrz of exercise a week this has led me to gain an extra car tire (so to speak). anyways i have just been given a road bike by a friend of the family nothing fancy just an old (like early to mid 80s bike) and am considerin takin up bike ridin to get back into shape. i live in Sydney next to the centennial park which has a 12 Km bike circuit on it. basically wat i am lookin for is any tips or advice of anything basically on how i shud go bout trainin? do it in da mornin? arvo? how many Kms should i do? wat kinda rate? how often ?? etc etc so any comments guys? any help would be Greatly appreciated! cheerz