Might hit the rear brake? You could use a velcro strap or something to secure it a bit more onto the stay.
Other suggestion place is hanging in the middle towards the front. If it swings a bit much then maybe use a bungee cord like on my pompino around head tube and seat tube(imagine my triangle bag is where the lock will be) so it might swing a little but not out into your knees. The bungee cord and lock holder might rub the frame a little as expected but worth thinking about if you hate scuffs/marks of any sort.
It was all ok in the end, miles away from the cantis and the stay acts as a barrier as expected.
If it hadn't worked then your solution would have been my next choice.
Cheers.
Might hit the rear brake? You could use a velcro strap or something to secure it a bit more onto the stay.
Other suggestion place is hanging in the middle towards the front. If it swings a bit much then maybe use a bungee cord like on my pompino around head tube and seat tube(imagine my triangle bag is where the lock will be) so it might swing a little but not out into your knees. The bungee cord and lock holder might rub the frame a little as expected but worth thinking about if you hate scuffs/marks of any sort.