Originally Posted by
TenSpeedV2
You haven't used the right messenger bag then. Mine has a side stability strap and it stays put even under full acceleration off of a light with 49:15 gearing. To get to speed on the main road with that gearing I have to start dancing on the pedals right off the bat side to side, and the bag stays put.
I don't want a ridiculous looking bag with a seatbeat buckle ... not so good when rock climbing.