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Disc brakes
I have XTR disc brakes 160mm. 3 years and several sets of pads later,
it just occured to me..... Should I be replacing the rotors? When does one do so other than when one is bent? Ideas, comments and flames begin here....... |
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#2
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Disc brakes
CB wrote:
I have XTR disc brakes 160mm. 3 years and several sets of pads later, it just occured to me..... Should I be replacing the rotors? When does one do so other than when one is bent? Ideas, comments and flames begin here....... For MTBs, it's hard to wear down a SS rotor down to the minimum wear limit. I did a quick search and was unable to find any values for minimum thickness. There's a chance, however, that it may be printed on the rotor itself, as they are on motorcycle disc brakes. Examine it closely for such information. -- Phil |
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Disc brakes
On Feb 7, 10:08 pm, "CB" wrote:
I have XTR disc brakes 160mm. 3 years and several sets of pads later, it just occured to me..... Should I be replacing the rotors? When does one do so other than when one is bent? Ideas, comments and flames begin here....... I posted this sometime last summer. ... One of the former Shimano USA tech reps gave out the the number of . 20 mm from the nominal width I believe. This is based on the rotor not being out of true or scored, both of which tend to end the life of a rotor long before a reduction in thickness. Also consider that, given the semi-industrial standard (there was one?) of 2 mm, various rotors seem to run nominal widths of between 1.80 mm and 2.2 mm. So knowing what the nomial width that you started with would be key. Current Shimano rotors seem to be coming in at 2.0 mm, but the older RT75's that I have listed were coming in at the low end ....1.8 mm. Just for the fun of it here are a few numbers that we came up with while doing some brake trials. small n ... 4 rotors measured for each average. Avid Stainless 1.9 mm Aztec Stainless 2.0 mm Shinamo SM-RT61 1.8 mm Shimano SM-RT75 1.8 mm Shimano SM-RT77 1.8 mm Shimano SM-RT96 1.8 mm Shakamuri Ti 2.0 mm Stan's Al 2.1 R What was once old is new again. |
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