Drilling is good.
The hole edges scrub the pads clean and if the brake disks look like gramaphone records they'll improve after the bike has done a few hundred miles.
There's a weight loss too, but honestly, it ain't much.
The bores add more surface area than the holes remove.
Smaller the hole, the more you gain.
0.42" holes are break even, larger than that and you lose.
And yeah, it looks neat.
The hole edges scrub the pads clean and if the brake disks look like gramaphone records they'll improve after the bike has done a few hundred miles.
There's a weight loss too, but honestly, it ain't much.
The bores add more surface area than the holes remove.
Smaller the hole, the more you gain.
0.42" holes are break even, larger than that and you lose.
And yeah, it looks neat.