Question On the Design Of these 12A Rotors???
#1
Question On the Design Of these 12A Rotors???
Okay i was cleaning all my rotors and came across this set...Not sure of the year of the rotor but are 12a...What is up with the design of the rotor? Why are they textured the way they are...Both rotors are designed this way
#6
Got Rotors?
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those rotors, i almost bet are just a hair bigger then the others you have just by .010-.015 of a inch. Those were machined using a roughing endmill but never finished. I see those lines everyday working in a machine shop.
This was not a design it was most likely a screw up.
This was not a design it was most likely a screw up.
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#11
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You will find some of the same machining marks on S4 and S5 rotors, usually in the 'bathtub' area, not usually around the entire surface area. I don't believe the are bad, they may have been balanced . The grooves do make for a good spot for carbon to accumulate.
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ive never seen that on a 12a rotor, but i do on the fd rotors. its like they have 2 machines, one that spits out "normal" looking ones, and one that spits out rotors that look like that.
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