cabledonut - check this website

cebucycling.com

there's a couple a good bike shop aroung Alabang close to alabang town center.
they do a lot of crit racing around alabang during the early mornings. if you get a chance to travel .. I suggest going to cebu, they also have a huge cycling community down there.
they have tour of clark, tour of matambukay races. bring your bike and enjoy the ride.