How do you tell difference between 26mm and 30mm z32 brakes

[Cgeigert]

I have a complete z32 brake set up that I got years ago, but I forgot which size the calipers were. Now I'm going to by the rotors but need to know which size I need. How do you tell the difference between the calipers?

[simmode1]

And to piggie back that, how do you turn 26mm calipers into 30mm calipers?

[simmode1]

Just threw that question out there because it was probably the next question you might logically ask. I too lazy right now to search too hard for it, but I bet the answers are in here:

how-to-ultimate-z32-brake-swap-w-lots-o ... 86360.html

Admins need to fix the pics in there though...

[Dittoz7]

Ruler?

[cjmirabal1]

Ruler?

^^

[Razi]

[Cgeigert]

Thanks for the pic Razi. When i use a measurement caliper like shown above, I get a little over 30mm. So, given the pic above, does an approximate 30mm measurement mean it is a 26mm caliper?

[Cgeigert]

And a magnet doesn't stick so they are aluminum. Thanks for the thread link sinmode1

[Razi]

Thanks for the pic Razi. When i use a measurement caliper like shown above, I get a little over 30mm. So, given the pic above, does an approximate 30mm measurement mean it is a 26mm caliper?

Yep!
If it's wider than 30mm, it's a 30mm caliper.

[Cgeigert]

Kinda funny how a 26mm caliper has a measurement of 30mm.

[94_240sx]

Kinda funny how a 26mm caliper has a measurement of 30mm.

Because you need a little bit of space between the rotor and caliper. I think I saw someone put 30mm rotor on 26mm caliper by accident. It fits, but rotor kinda damaged the caliper when rotating and braking was not good at all.

[Cgeigert]

I now ended up with 3 complete sets of 26mm brakes, so I have one complete set for sale, plus I'll sell a pair of rears too.

[simmode1]

OP, google "Making 26mm Z32's into 30mm Z32s"... You might find that useful.

Apperantly, the only real difference between the 26mm's and the 30mm's is a little washer that you can insert as a spacer. Voila! Instant 30mm's!