Grex Brake Rotor Direction

[Willo]

Is the groove direction on the Grex brake upgrade rotors (6pot front, 4pot rears) the same front and rear? If so, which direction do the grooves run? I have had the brakes installed but the front grooves lay back and the rear grooves lay forwards. And this is how the brakes are stamped left and right.

Thanks.

[STATUS]

see pics Photos on website are for display only and are actually back to front in some cases.....

[Willo]

see pics

So the rear is the same?

[STATUS]

wait a minute.....

[STATUS]

(from memory the grex 6 pot set on the supra had l or r on the rotor or an arrow) and ours cut from out to in..... i will ring trust (and open the box of gtr ones i have in the warehouse) now maybe the pics above off the site are for demo only..... the pics in the GREDDY book face out to in... opposite from the website talk about confusing.

the best way to check as many brands are differrent is by looking at the internal cooling grooves in the rotor some are unidirectional some are not.

brembo sweep out to in.

[Willo]

Very confusing. The rotors were on the correct side as indicated by the L and R on the rotors but the rear sweep direction was different to the fronts. My fronts are as per the pictures you posted. I have switched the rears so they are the same as the front.

[STATUS]

OK this is the official G-O from the GREX dude at Trust;

Greddy swapped rotor designs not long ago so some kits include reverse rotation rotors and normal rotation (not side to side but differrent rotation set front to back). As i mentioned earlier all the rotors are marked L or R (some have a L or R as the last didgit in the part number on the rotor bell) The internal design designates L or R so best bet is to check the rotors and run them as marked.

[Willo]

Thanks for the info, looks like I changed them over for nothing.

[T04GTR]

ok put aside all the business of wich way the slot is facing.

you need to install them so the internal vanes are laying back. like <--------- rotor direction, vanes = /////////// so the inside of the disc sucks the air from the inside of the diisc. but you would know as your buying an alcon brake package and have some idea on brakes