| I also bike quite frequently, and can vouch that Philip is a good guy to know if you are planning to do a good amount of biking. As Lammarite said, CC is more prevalent in Lamma and some parts of Lantau. Another area not really mentioned is in Siu Lam in the new territories. There are some awesome downhill and CC rides between Route Twisk (the start of the silliest DH stretch I've ever ridden) and Tuen Mun (siu Lam right behind the jail). I go out there quite a lot, but never see more than one or two guys riding the trails, so it is quite nice.
I'd also be up to trying some new trails out too, so keep me posted if anyone wants in. | 
