Help with RS2 caliper big red or small calipers??

[pinnen]

I bought a pair of rs2 calipers. But i don´t know if it´s big red or not. The seller said it was big red.

Artnr. 20.5249.00

piston size: 30mm and 40mm

[Rocco]

write here the porsche part number please

the "big reds" are 996 351 425/6

[johne]

write here the porsche part number please

the "big reds" are 996 351 425/6

I would consider 996 351 425/6 standard reds - they're from a Porsche 996 or Boxster S - not big reds but could be wrong.

Either way the ones you have are older non monoblock calipers like the RS2 or Porsche 944 turbo ones.

With the Porsche part number you'll be able to search and find lots of sites telling you exactly what you've got.

John

[Error404]

IIRC there were two versions of the older 2 piece caliper, one with 30mm and 40mm pistons (small reds) and one version with 36mm and 44mm pistons (big reds)

HTH

[pinnen]

IIRC there were two versions of the older 2 piece caliper, one with 30mm and 40mm pistons (small reds) and one version with 36mm and 44mm pistons (big reds)

HTH

Thanks. Now i know it´s the "small reds"

[Rocco]

Thanks. Now i know it´s the "small reds"

and then.... the seller lied you true???

[twoqu]

I believe that both the RS2 caliper variants share the same internals. 36mm and 44mm pistons.
You need to measure the actual diameter of the piston itself by carefully seperating the dust cover from the piston.
I undertand that casting numbers 20.5248.00 and 20.5249.00 are the Big Reds!
Perhaps someone can confirm the casting numbers of normal RS2 calipers for comparsion. Although its probably on here somewhere!

[S-Express]

I can confirm that small reds have 36 & 44mm dia pistons

[eJaYr]

Casting numbers of small reds and big reds

Can someone confirm which is the correct casting number for big reds and small reds ?

[veneto rs2]

Can someone confirm which is the correct casting number for big reds and small reds ?

The "casting" number it's nothing less then Brembo part number.

If you fill on google "brembo" followed by the "cast number"
you'l get everything.