[alexonahurry]

Have bought a set of rear calipers from a M2, the two piston one that's identical to the Performance calipers for 345mm rotors. They seem to be identical but I know there must be a left or right version. They are the 20.B433.02 ones. Can anyone help where I can find "L" and "R" marking? Or are they suppose to be identical and there is no difference? I'm confused

[cfm56d7b]

Originally Posted by alexonahurry

Have bought a set of rear calipers from a M2, the two piston one that's identical to the Performance calipers for 345mm rotors. They seem to be identical but I know there must be a left or right version. They are the 20.B433.02 ones. Can anyone help where I can find "L" and "R" marking? Or are they suppose to be identical and there is no difference? I'm confused

I suggest to visit RealOEM.com and confirm the part numbers. Left and right calipers will have different part numbers.

[alexonahurry]

Originally Posted by cfm56d7b

I suggest to visit RealOEM.com and confirm the part numbers. Left and right calipers will have different part numbers.

Doesn't really help. The only number on the caliper has nothing to do with part number. really confusing

[Tommi_Mav]

Originally Posted by alexonahurry

Have bought a set of rear calipers from a M2, the two piston one that's identical to the Performance calipers for 345mm rotors. They seem to be identical but I know there must be a left or right version. They are the 20.B433.02 ones. Can anyone help where I can find "L" and "R" marking? Or are they suppose to be identical and there is no difference? I'm confused

The bleeding valve must be on the upper part of the caliper after it's installed (so air can escape). This should help you determine which is left and right.

[alexonahurry]

Originally Posted by Tommi_Mav

The bleeding valve must be on the upper part of the caliper after it's installed (so air can escape). This should help you determine which is left and right.

Awesome, many thanks - that makes totally sense. Appreciated !