Why not put a larger bash plate on that will do the same thing and less likely to catch your ankle in a crash because a bash plate sits lower than the crash bars.
B & B offroad have one and Rugged Roads are just finishing one to work with a range of bars including stock.
The bike will then slide on the Upper crash bars and the lower bash plate it will weigh less (than lower crash bars) and be less likely to pin your leg under the bike.