AMA Supersport Racer
Join Date: Oct 2008
Location: Savannah GA
Thanked 91 Times in 77 Posts
Feedback Score: 3 reviews
measure your thickness. If your disks are thicker than stock, throw them out! It is a very rare problem, but does happen, dust can just build up and up over time depending on pad compounds, and the rotors can get thicker. Also, check for thickness consistency. If they are to thin you will also have to replace them. You can get a cheap micrometer for $7-14 from harborfreight, well worth the investment as you can use it when measuring internal engine parts during a rebuild, or to measure valve shims that have the numbers on them worn off.
If it's been sitting for a long time visually inspect them. If there is corrosion or pitting on the rotor that might be a problem. Light corrosion or oil (if your fork seals are leaking) can be removed from driving about half a mile with light pressure applied. Same thing you do to clean your rotors if you get mud on them.
Also I would reccomend a new set of stock brake pads. Some aftermarket pads can generate enough heat to warp your disk's, so, go with a well known brand, or be safe and go OEM.
snap some pics if you get a lot of free time on your hands, it might help
also compare the roughness of the disk to another set if you can. shoudnt be rough enough at any spot to grab the pad
2004 CBR600RR (daily rider, to be raced)
1973 CG150 (off road, future restoration project)
2006 BWS50 Zuma
Bikes of my (recent) past:
2004 Honda Ruckus, completely built, 55mph on the flats, 60 downhill and/or drafting
2007 Kawasaki Ninja 250
2004 Yamaha R6
BMC race filter
Jardine slip on
8987 PENSKE triple adjustable shock
STM slipper clutch
Power Commander III
Gear up or go home!!
Last edited by michaelwood; 05-13-2010 at 11:20 PM.