I thought of doing that, but I don't trust my ability to "line things up". So, I used every handyman's helper, duct tape, to assist putting mine on. First I put a couple of strips with the sticky side to the back of the deflector, and allowed the tape to extend beyond the deflector's edges. Then I used a pencil to poke through the tape where the screws would go. Next I placed the deflector, with the tape stuck to the back of it onto the leg shield, and moved it around to where it would eventually be mounted. I put some more tape over the exposed edges of the tape on the back of the deflector to hold it in place on the leg shield. Finally I pulled the deflector off of the tape I'd put on the back, which was now being held in place on the leg shield, and drilled through the two places I'd makred with the pencil. Pulled off the tape and screwed the deflector in place and put the shield back on the bike.