K1/K2 Calipers confusion, help please
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Another OCMD victim...
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From: Spain, Europe
K1/K2 Calipers confusion, help please
Hello all. I am about swapping in GSXR Calipers in my SH, now i have 3 offers and all 3 vendors claim the calipers are from either a K1 or a K2 model, which would be ok.
The only problem is, all 3 calipers seem to be different on the pictures (and i dont mean the color..
).
Can anyone here determine which calipers would be ok to buy?
For me the black calipers seem to have a different bolt distance, but i can be wrong.
Any advise is highly appreciated. Thank you in advance.
Regards from Spain
The only problem is, all 3 calipers seem to be different on the pictures (and i dont mean the color..
).Can anyone here determine which calipers would be ok to buy?
For me the black calipers seem to have a different bolt distance, but i can be wrong.
Any advise is highly appreciated. Thank you in advance.
Regards from Spain
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MotoGP
Joined: Mar 2007
Posts: 3,132
From: Phoenix, AZ
The first one and the last one (not the black ones) look identical to me.. they are turned to different angles, but look like the same part.
The black ones don't match the other two.
I am fairly sure either of the gold ones are the right ones, but it is hard to tell from just a picture.
(one has the banjo bolts and not the caliper bolts, and the other has the caliper bolts and not the banjo bolts installed, but otherwise they seem to be the same.
The black ones don't match the other two.
I am fairly sure either of the gold ones are the right ones, but it is hard to tell from just a picture.
(one has the banjo bolts and not the caliper bolts, and the other has the caliper bolts and not the banjo bolts installed, but otherwise they seem to be the same.
Thread Starter
Another OCMD victim...
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From: Spain, Europe
Yes that is exactly my opinion too. The black calipers seem to be different, the golden seem to have at least the same bolt distance. I contacted the vendors for the measures, but no response yet.
Thank you.
Thank you.
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Superstock
Joined: Jul 2007
Posts: 342
From: CA, South of Heaven
The calipers in the first and last pictures are identical and it's what you should buy. I have them on my SH, and they bolt on directly. If you do this mod, I would reccommend installing also a larger MC.
Last edited by Killemall; Mar 3, 2009 at 11:47 AM.
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Superstock
Joined: Jul 2007
Posts: 342
From: CA, South of Heaven
I got a CBR929 MC. It's ok but I would prefer one with even a larger bore diameter. Probably the best solution is to get the original 01-02 GSXR MC, assuming that it fits on the Superhawk handlebar.
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MotoGP
Joined: May 2005
Posts: 2,708
The first and last photos are the correct calipers you are looking for and are only found on the '01-'01 GSXR1000. The middle set is another six piston setup that can be found on many models... GSX1300R, GSF1200, just to name a few.
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What are you guys paying for these? Is there a real benefit if you don't ride tracks or brake hard repeatedly or from high speeds?
In other words, day to day use. 45 mph and below. Worth messing with?
I don't find the SH underbraked in any way given how I ride.
In other words, day to day use. 45 mph and below. Worth messing with?
I don't find the SH underbraked in any way given how I ride.
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MotoGP
Joined: Nov 2006
Posts: 6,109
From: Skurup, Sweden
But the difference with a "big brake" is that you can squeeese them and modulate the breaking a lot more... Obviously for this to work there needs to be a certain balance between the calipers and MC...
So Yes, there is a "real world" difference and gain...
With the brakes I have, I can most easily stand the bike up on the front or probably flip it over if I just grab the handle and jank it...
But I feel a lot more confident with slowly increasing the pull on the brakes knowing there is a lot in reserve, than with the stock trying to modulate the breaking, getting no bite in the start of the pull, and end up going late in the corner and having to use a lot of brake to correct...
That kind of gave me the feeling halfway through the corner that I need an anchor to throw out... Not because the brakes where inadequate... But because the stock brakes takes some pull on the handle to be effective, and then they clamp down hard...
Thread Starter
Another OCMD victim...
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Posts: 118
From: Spain, Europe
Since i am joining regional Track Days a few times a year, i try to improve the overall performance of my Hawk. After changing to Spiegler brake lines, Wave discs and EBC Pads i found braking a lot crisper and more predictive, but i give the 6 piston calipers a shot and expect a even better result.
As for the MC, this will be the next logic step...
This forum is very inspiring, the database is incredible helpful and so are the members here.
Thank you all for the quick response.
Regards from Spain
As for the MC, this will be the next logic step...
This forum is very inspiring, the database is incredible helpful and so are the members here.
Thank you all for the quick response.
Regards from Spain
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SuperBike
Joined: Aug 2004
Posts: 1,806
From: Atlanta, GA
The stock Suzuki mc for that bike is 5/8", which is the same size as an F4 mc and smaller than a 929 mc. The stock Superhawk mc is 14mm, which should work OK too.
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MotoGP
Joined: Mar 2007
Posts: 3,132
From: Phoenix, AZ
Smaller MC gives you more stopping power but requires more lever travel, larger MC gives you less lever travel but requires more force to get the same stopping power.
(I think I have that the right way around)
(I think I have that the right way around)
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SuperSport
Joined: Aug 2007
Posts: 599
From: Eagle, ID.
Doesn't the 01-02 gxsr have a radial mc which is supposed to be better than the conventional mc?
If the stock mc is 5/8", which approximates 15mm, I am better off keeping my 01 RC51 mc which is 19mm with the 6 pot calipers I am in the process of putting on the bike.
This setup would require a bit more pressure on the lever but greater braking if I have read this post correctly.
If the stock mc is 5/8", which approximates 15mm, I am better off keeping my 01 RC51 mc which is 19mm with the 6 pot calipers I am in the process of putting on the bike.
This setup would require a bit more pressure on the lever but greater braking if I have read this post correctly.
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Superstock
Joined: Jul 2007
Posts: 342
From: CA, South of Heaven
I have 01-02 GSXR Tokico 6-pistons calipers + CBR929MC + HBC pads + Galfer lines with MC bleeder banjo bolt. I need to pull the lever about 1/8" before the brakes start biting very hard. I personally prefer feeling the front break lever tighter and a larger MC should basically give me more pressure with less stroke.
Reaper your setup should be perfect. If I remember correctly the RC51 MC is one of the largest that would fit the SH. I would have got that if I could find one at a reasonable price.
Reaper your setup should be perfect. If I remember correctly the RC51 MC is one of the largest that would fit the SH. I would have got that if I could find one at a reasonable price.
Last edited by Killemall; Mar 5, 2009 at 09:21 AM.
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SuperBike
Joined: Aug 2004
Posts: 1,806
From: Atlanta, GA
I have 01-02 GSXR Tokico 6-pistons calipers + CBR929MC + HBC pads + Galfer lines with MC bleeder banjo bolt. I need to pull the lever about 1/8" before the brakes start biting very hard. I personally prefer feeling the front break lever tighter and a larger MC should basically give me more pressure with less stroke.
Reaper your setup should be perfect. If I remember correctly the RC51 MC is one of the largest that would fit the SH. I would have got that if I could find one at a reasonable price.
Reaper your setup should be perfect. If I remember correctly the RC51 MC is one of the largest that would fit the SH. I would have got that if I could find one at a reasonable price.
I don't doubt that your setup works well, but you would actually get more braking force using a smaller mc.
Last edited by killer5280; Mar 5, 2009 at 11:01 AM.
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