R1 Calipers on gsxr forks

[nissn1]

R1 or GSXR radial ,which ones are better I like the bling factor of R1 radial calipers but intereted to know if there are any other advantages/disadvantages over GSXR calipers which i am currently useing thanks

[amulmuz]

just make sure you use the right size master cylinder. eg the gsxr nissin 19mm is too big
and the brakes feel totally wooden. i think the oem yam brembo is 16mm

[nissn1]

My stock sv master seems to work just fine with twin line set up , but i have to change calipers back to 05 radial + 5mm spacer ,or go to 320 rotors (sv1000 310mm)as i just found out today. I have 08 calipers on 04/05 600 forks , pads are overlapping outside of rotor by 5mm damn I have a set of 05 600 gold calipers but i think i will change out to a larger rotors

[amulmuz]

my point about the master cylinder choice is that r1 calipers have smaller pistons than the tokico ones. bummer about your problem. obviously there are so many combo's when matching calipers, disks etc and making sure you get it right.

[The Ring-In]

Is there room to machine 5mm off the mounting points on the calipers and not foul the mounts on the forks?

[TLDV8]

Originally Posted by nissn1

My stock sv master seems to work just fine with twin line set up , but i have to change calipers back to 05 radial + 5mm spacer ,or go to 320 rotors (sv1000 310mm)as i just found out today. I have 08 calipers on 04/05 600 forks , pads are overlapping outside of rotor by 5mm damn I have a set of 05 600 gold calipers but i think i will change out to a larger rotors

2003/2004 GSXR 1000 calipers for the 300mm rotors might work as the mount height is lower than the later calipers.
Steve might be able to measure his calipers.

[nissn1]

Originally Posted by TLDV8

2003/2004 GSXR 1000 calipers for the 300mm rotors might work as the mount height is lower than the later calipers.
Steve might be able to measure his calipers.

thats right , i have a set of 04/05 600/750 calipers but they need 5mm spacers with 310 sv rotors. or just go to 300mm without spacers so stil have to swap rotors there!

is there any difference in brake pad size between early model and late model gsxr radial brake pads I would be guessing the pads all have the same contact area ?

Originally Posted by The Ring-In

Is there room to machine 5mm off the mounting points on the calipers and not foul the mounts on the forks?

i guess thats possible if you had access to such machinery , should be enough thread left for shorter mounting bolts

[The Ring-In]

guess thats possible if you had access to such machinery , should be enough thread left for shorter mounting bolts

machine the caliper not the fork , shorter bolt. same thread in fork.

[TLDV8]

Originally Posted by nissn1

thats right , i have a set of 04/05 600/750 calipers but they need 5mm spacers with 310 sv rotors. or just go to 300mm without spacers so stil have to swap rotors there!

is there any difference in brake pad size between early model and late model gsxr radial brake pads I would be guessing the pads all have the same contact area ?

i guess thats possible if you had access to such machinery , should be enough thread left for shorter mounting bolts

The only difference i thought was the 03/04 1000 caliper being a 4 pad item.
Does the SV have its own 310mm rotor with the old 69mm bore,i thought the only 310mm rotor was the late GSXR item with the totally different bolt pattern and PCD.
The 300mm rotor was the last one with the similar bore and PCD to the TL rotor.
5mm spacers to retain the 310's wouldn't be that bad.?

As Amulmuz says the R1 caliper (27mm/30mm piston) used a 16mm radial,a Brembo 18/19 radial would work nicely with the GSXR calipers (30mm/34mm pistons)

As far as machining you would need to split the caliper so the part line face could be clocked on a angle plate then fly cut.
The problem might be the mount bosses have a flare at the mount face,removing that might negate the radial being rigid.

[TLDV8]

The mount is fairly deep on the later caliper.





There is nothing complicated about it,just measurements.
Look what happened with forks,the reality is with triples they all bolt on in 5 minutes.
More than likely there will be up to three caliper height differences,a simple combination with spacers will let them work on any rotor set up.


Sadly if i was back home and close to my lathe i could have proved it by having some spacers in the mail.