I am very pleased with the GBC Dirt Shark. They are cheap, rear for $60 form my local dealer or $5o online fronts for even less. I get at least as many miles out of the rears as I used to with s-12. The front I have had on for about 1200 miles and it has not thrown a knob yet. For comparason I usually throw knobs off an s-12 front within 300 miles.
Paul B
|