Sukeban gerira (1972)

Miko Sugimoto is the leader of the Red Helmet Gang, a biker girl gang from Shinjuku who wind up in Kyoto and make a bid to take over the local girl gangs there. Successful for a short time in ruling the streets it isn't long before Miko and her crew run afoul of the local Yakuza, and are forced to turn to Reiko Ike, a ronin Yakuza girl, and sister to one of the top Yakuza in Kyoto, for help, leading to a murderous showdown at a small coastal resort.

All out sexy, bloody, violent action plus girls on bikes fighting girls on bikes as well as sorting out the yakuza. This may not be the most subtle of movies, although there is a fair amount of character development, but what this excels at is in the thrill quotient. Almost non stop, just one little comedy/slapstick moment of dubious taste and then it's back on the road. Not always easy to follow who is the baddie and who the even badder but our girls do have those wonderful breast tattoos so you can't go too far wrong. Missing a big fight out at the end and instead we get an explosion preceded by some of the most brutal beating of bound women you are likely to see. Not family viewing then but certainly a wow for everyone else.