This might be a bit too late but just in case you're in the islands again, i would suggest you post a notice on our biking community forum at
http://www.pinoymtbiker.org/forum/. This is a very active forum and membership is spread out throughout the whole Philippines. Roadies are welcome too

. You can get good information on bike shops, organized and fun rides, trails and just good contacts to hook up with anywhere in the country. And by the way, we all speak English

.