Other GSXR calipers?
08-17-2009 | 10:19 AM
#1
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Other GSXR calipers?
Have read on here that gixxer 1000 6 pots are a straight fit.
What about the 4 pots?
Or will any 600 or 750 gsxr calipers fit and are they better than our standard ones?
What about the 4 pots?
Or will any 600 or 750 gsxr calipers fit and are they better than our standard ones?
08-17-2009 | 12:09 PM
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i *believe* so. there's another thread that confirms this. none of the gsxr calps require modding like the rc51/f4i calps.
if you do a calp swap, be sure to get the match master cylinder as our hawk stock pump is really puny. either way, the 4 pot gsxr calps are a ton better than the tiny nissin's that we have.
if you do a calp swap, be sure to get the match master cylinder as our hawk stock pump is really puny. either way, the 4 pot gsxr calps are a ton better than the tiny nissin's that we have.
08-17-2009 | 02:05 PM
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so are we talking like K1/K2/K3 then? There are a couple sets on ebay atm
would be interested if anyone knows piston sizes, have been looking at them and in the pics they dont look much different to our nissins
would they really be much of an improvement?
*edit
Can someone PLEASE TELL ME really quick are the busa calipers the same as gsxr 1000 cos these are ending real shortly
it says 90mm mount to mount is that our size
http://cgi.ebay.co.uk/HAYABUSA-TOKIC...d=p3286.c0.m14
would be interested if anyone knows piston sizes, have been looking at them and in the pics they dont look much different to our nissins
would they really be much of an improvement?
*edit
Can someone PLEASE TELL ME really quick are the busa calipers the same as gsxr 1000 cos these are ending real shortly
it says 90mm mount to mount is that our size
http://cgi.ebay.co.uk/HAYABUSA-TOKIC...d=p3286.c0.m14
08-17-2009 | 03:00 PM
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Yes, that sounds right.. But K3 GSXR1000s were radial mount (not the 600 or 750 but they weren't 6pot)
I thought there was some reason the Hayabusa ones were different, but I don't recall what it was exactly. (google if the Hayabusa calipers will fit K1-K3 GSXRs)
As for piston sizes, the stock VTR piston sizes are super dinky, like scooter size. That is why CBR600 F4i calipers are such a popular swap on our bikes.
I thought there was some reason the Hayabusa ones were different, but I don't recall what it was exactly. (google if the Hayabusa calipers will fit K1-K3 GSXRs)
As for piston sizes, the stock VTR piston sizes are super dinky, like scooter size. That is why CBR600 F4i calipers are such a popular swap on our bikes.
08-17-2009 | 03:26 PM
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ok
so the 4 pot calipers from a k1/k2/k3 gsxr 600 or 750 and the 4 or 6 pots from a k1 or k2 gsxr 1000 will fit then with no mods?
63 seems quite small, i will measure it and see what it is
so the 4 pot calipers from a k1/k2/k3 gsxr 600 or 750 and the 4 or 6 pots from a k1 or k2 gsxr 1000 will fit then with no mods?
63 seems quite small, i will measure it and see what it is
08-17-2009 | 03:43 PM
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Here is where Swordfish put 02 750 calipers on his: https://www.superhawkforum.com/forum...t=19552&page=2
Don't forget the master Cyl too.. the stock one is dinky.. some people say that upgrading the master cyl is more important.. I think for the price do both.
Don't forget the master Cyl too.. the stock one is dinky.. some people say that upgrading the master cyl is more important.. I think for the price do both.
08-17-2009 | 03:46 PM
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thanks for that
yes i will be definitely getting some sort of master cylinder too
does anyone know if all the gsxr ones are the same?
i think id probably be better with an F4 or RC51 master cylinder looking at some of the other threads? or a fireblade RR one can you use those?
yes i will be definitely getting some sort of master cylinder too
does anyone know if all the gsxr ones are the same?
i think id probably be better with an F4 or RC51 master cylinder looking at some of the other threads? or a fireblade RR one can you use those?
Last edited by Forde; 08-17-2009 at 03:52 PM.
08-17-2009 | 04:23 PM
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haha yeah sorry, i meant k1-3...no srad years. but we've got that figured out now haha.
rc51 and 929rr MC's are the biggest, 19mm, then u have various other honda models with 17.4mm and on the bottom end is an f4i with 15.9mm. the superhawk is the lowliest 14mm.
if my understanding is correct, you COULD use a radial pump with standard calps (which all the gsxr 4pots k1-3 are), but theyre pricier than the standard pumps. might as well use the same pump from the calps if you can get the full set. makes changing the levers a separate process though, you have to get 1 superhawk lever and another whatever lever.
fireblade rr will be a radial pump i believe, well a 1000rr at least.
my pick would be any of the calps, and a 929 or rc51 pump if i can get it for cheap. other wise im sure the gsxr pump that goes with the calps will be good enough. pretty much anything is better than the dinky calps and pump the hawks came with.
rc51 and 929rr MC's are the biggest, 19mm, then u have various other honda models with 17.4mm and on the bottom end is an f4i with 15.9mm. the superhawk is the lowliest 14mm.
if my understanding is correct, you COULD use a radial pump with standard calps (which all the gsxr 4pots k1-3 are), but theyre pricier than the standard pumps. might as well use the same pump from the calps if you can get the full set. makes changing the levers a separate process though, you have to get 1 superhawk lever and another whatever lever.
fireblade rr will be a radial pump i believe, well a 1000rr at least.
my pick would be any of the calps, and a 929 or rc51 pump if i can get it for cheap. other wise im sure the gsxr pump that goes with the calps will be good enough. pretty much anything is better than the dinky calps and pump the hawks came with.
08-17-2009 | 05:15 PM
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just a note about the MC on 01' gixxers. the metal piece that supports the resovoir attaches to the clip-on on the gixxer. not to the MC like the hawk. so unless you mod it the way I did, or use a different MC, you won't have any way to support it on the hawk.
08-18-2009 | 10:17 AM
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Honda secures the res via a piece of metal attached to the MC. Suzuki attaches the metal to the clip on. The reses themselves are for all intents identical, it is what they mount to that is the problem. If you replace the MC with a Suzuki one there is no mounting point for the res.
08-18-2009 | 12:02 PM
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Honda secures the res via a piece of metal attached to the MC. Suzuki attaches the metal to the clip on. The reses themselves are for all intents identical, it is what they mount to that is the problem. If you replace the MC with a Suzuki one there is no mounting point for the res.
08-18-2009 | 12:12 PM
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think ill try and get a honda res then
watching a few sets of gsxr 600 4 pots on ebay atm they are cheaper and easier got than any of the honda calps here plus should be straight fit
watching a few sets of gsxr 600 4 pots on ebay atm they are cheaper and easier got than any of the honda calps here plus should be straight fit
08-18-2009 | 10:42 PM
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08-18-2009 | 10:52 PM
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07-14-2012 | 07:09 PM
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07-17-2012 | 07:38 PM
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FWIW, a larger or smaller master cylinder piston has a negative effect on brake power on it's own. If you go to a larger MC piston with the stock calipers, the lever will feel stiffer/harder under pressure but you've actually created a lower hydraulic pressure at the calipers. It's a ratio- larger MC to move more fluid and drive larger pistons in the calipers.
Max clamping pressure is achieved by using the smallest MC piston that will drive the largest caliper piston area (and caliper body stiffness, line strength, etc. you get the idea).
As others have mentioned, it's best to switch out the whole system if you're going to change one component.
Max clamping pressure is achieved by using the smallest MC piston that will drive the largest caliper piston area (and caliper body stiffness, line strength, etc. you get the idea).
As others have mentioned, it's best to switch out the whole system if you're going to change one component.
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