Another variation on our chainring bags,
Designed to carry the big rings(picture up to 66t)
5open topped pouches to slip the rings into with #trackbikes smaller pouches for sprocket (12,13,14,15,16,17,18) plus chain ouch between, opposite side has #cyclist 170x40mm pouches for tool, one larger pocket for chain whip, plus a few extra Velcro pouches and zipper pockets for all the other essentials.
Bag has zippers along each side and folds out flat for easy access to all your gear, convenient carry plus a should sling for bit easier carry when your hands are full.
Couple of extra pockets on each side of the out side for the other bits and piece that we all think we may need as well.