background: i have had my bike for (almost) a few years but i'm starting now to get serious about it. i am 23. i am overweight (5'5 233 lbs-down 11 lbs since mid Feb ) so i don't go fast or far compared to other cyclists, but i really try not to compare myself to them.

not including this week, three of the previous four weeks i rode 32, 30, and 30 miles, respectively. last week i was on vacation so i didn't ride. this week my mileage can be anywhere from 30-35. so basically:

week 1: 32 miles
week 2: 30 miles
week 3: 30 miles
week 4: vacation
week 5 (current): anywhere from 30-35 miles

i'm not sure how to up mileage. i know in running, upping about 10% each week is a good rule. i know everyone is different, but i'm wondering what your "rule" is for upping mileage.

also, for 30 miles/week that's about 3 hrs of cycling.

thanks for any info/advice