Police have ramped up the pressure on bikies, busting a meeting of top brass from 10 outlaw motorcycle gangs in western Sydney on Saturday.

Officers from Strike Force Raptor, the dog squad and Polair swooped on a licensed premises on the Great Western Highway, in Prospect, about 12.30pm (AEST).

Police allege the muster gathering was attended by high-ranking members of bikie gangs, including the Rebels, Bandidos, Finks, Outcasts, Black Uhlans, Phoenix, Christian Motorcycle Club, Gypsy Jokers, Life & Death, and Loan Wolves.

About 70 members and their vehicles were searched.

http://news.smh.com.au/breaking-news-national/police-raid-bikie-club-meeting