The Ibis Cycles Pork Chop Frame Bag works with the front aperture and are available in various sizes

I've had a mojo 3, a mojo 4, and my husband had an HD3 and HD4, and we've had Ripleys of every generation.

This frame bag has never been used, and unfortunately we aren't sure what size it is (not labelled), as it was a Christmas gift.

Please see measurements