"Well-behaved women seldom make history." --Laurel Thatcher Ulrich
'09 Trek WSD 2.1 with a Brooks B-68 saddle
'11 Trek WSD Madone 5.2 with Brooks B-17
DH and I used a similar cover for our mountain bikes on a road trip from So Arizona to Montana. It worked really well to protect from road debris, rain and snow at the campground. We didn't have any issues with flapping but if I remember correctly, the cover cinched at the bottom.
Glad it did because I would not have thought about the flapping Oak mentioned. Not a nice a lesson to learn the hard way.![]()