03-19-2004, 01:07 AM
actually my mountain bike has this brake setup. the part of the rim that the rubber brake pads hit has about 20 or 30 fine grooves around it. apparently this helps clear debris, and i think it probably helps with surface area. but, this is on a bike, with rubber pads and a huge rim as a brake....a car is a whole different story.
2010 Civic Si
2019 4Runner TRD Off-Road
--------------------------
Past: 03 Xterra SE 4x4 | 05 Impreza 2.5RS | 99.5 A4 Quattro 1.8T | 01 Accord EX | 90 Maxima GXE | 96 Explorer XLT
2019 4Runner TRD Off-Road
--------------------------
Past: 03 Xterra SE 4x4 | 05 Impreza 2.5RS | 99.5 A4 Quattro 1.8T | 01 Accord EX | 90 Maxima GXE | 96 Explorer XLT