I know the minimum is 4 mm, but can anyone tell me what the thickness is of a new front rotor for the ST1300?
T.I.A.
Garry
Gilbert, AZ
T.I.A.
Garry
Gilbert, AZ
because of the shape of the caliper jaws you'll generally be measuring the thickness of the 'lip' anyway, so 5.03mm sounds reasonable given a cheap caliper. If you want to measure the worn section thickness you're better off with a micrometer, it will get into all the various places beyond the lip and give you a better reading on the thickness at the pad contact area.Now I'm curious. I just measured my front caliper. My bike is a 2004 with just over 30,000 miles. I'm pretty sure the rotor is original as the previous owner kept meticulous maintenance records and the pads have been replaced, but not the rotors. The rotor measured 5.03 at several spots (the caliper is a cheap digital Chinese model, but it has been accurate enough for some hobby machinist work and I zeroed it before use). I checked for a lip along the rotor's path on the caliper and if there is one, it is barely discernible. Now I'm curious to hear from someone with a new 1300 caliper.
There are many variables. If you tour long distances you don't use the brakes very much per mile traveled, if you commute shorter distances then the reverse is true. Pad material probably also plays a part in it, but I'm not sure if one company's HH rated pads are more or less abrasive than another company's HH pads.I know the minimum thickness is 4mm, but I'm wondering how many miles folks tend to get on the clock before feeling they need to replace the front or rear calipers. I realize this can be highly dependent on riding style and what pads are used.