That four pot Tokico front caliper

[Rod G]

From memory the bolt hole spacing on the Bandit is 90mm..The GSX14 is 60 something?

Oh, OK.  Just a stand off look.    Interesting though that Mr Suzuki went back to the four pots on his later iterations??

[froudy]

Oh, OK.  Just a stand off look.    Interesting though that Mr Suzuki went back to the four pots on his later iterations??

Knowing Mr Suzuki, it was probably down to cost..The 4 pots are bound to be cheaper than the 6 potters.

[VladTepes]

more likely for a while they access to a pile of cheap 6 pot calipers but exhausted that supply so went back to 4 pot....

[Reece]

Would calipers from a SV650S fit the 1400.

[gsxbarmy]

Would calipers from a SV650S fit the 1400.

No. Only these fit

http://gsx1400owners.org/forum/index.php?topic=193.0

[froudy]

I rode mine for the first time today since my new hip op and fitting the Tokico four pots...
They work a treat. Pads still bedding in so they're not up to 100% yet.
First impressions are very good though!

[Red Biker]

Interesting thread here that gets into the science as well as reality!

http://www.gixxer.com/forums/15-oil-cooled-gixxers/22601-calipers.html

[Rod G]

At the expense of being howled out of the forum, I've always held a gut feeling that the 6 pot was contributing in some way unknown to me to the pulsing front brake, that the 1400 seemed to suffer from more than most.

I have been told, and believe it, the pulsing is caused by thickness variations developing on the disk as opposed to the disk becoming warped (two different animals IMHO)

If there is just one sticking piston on a 6 pot, then it appears to me the tendency will be for the brake pad to want to flatten the disk at various points on every single rotation, with a 4 pot caliper this likelihood is reduced by 30% immediately, and with 4 pots, the piston action is now going to be pivotal front to back, whereas the 6 pot can pivot depending which piston may be the villain.

There has always been some chatter also the 1400 master cylinder wasn't quite up to supplying a 6 pot.  Just what effect this may of may not have the the bigger issues is anybody's guess?

So there you go, I told you I am crazy.

By way of comparison my bike barely made 20k klms before the pulsing developed (irregular wear).  I will be keen to see just what difference, if any, the four pots will make. (and yes I know many of you made a lot of miles without probs)

[Red Biker]

Hi Rod
I'm sure all views are welcome on here 😀
On the thread in my previous post one of the guys makes a good point in that most folk tend to do the full monty refurb with new fluid pads and even lines. So the perceived benefit is spread across all of those variables. The true test would be just to swap Calipers like for like

[seth]

as said
lots of things could affect your brake performance.
pulsing could be many things but dirty/sticking disc buttons is a very common cause .
there is a thread on cleaning them on here.
good luck

[Andre]

I like the 6er. Its a good caliper and looks the part. But imo it can't be denied that they need to be maintained and inspected meticulously. No problem for me as I enjoy doing it and would do regardless of what system I have.

You are right Rod, the more parts a system has the more can fail.

A true test as to performance (not just braking power) would be welcome but I doubt that it will be done. For me it would have to include a bunch of things besides a caliper swap (a very good start!).

For now all we can is reading various opinions based on theory, experience etc.

If I wanted/needed a good front brake system and had the budget, I would look at a radial Brembo caliper and radial master cylinder (or some other high end stuff).

[Rod G]

Whilst I did follow all the advice I obtained here and there about 1400 pulsing front brakes. Lttle changed the conduct of the front brakes and certainly it took two new rotors , a 2nd hand four pot Tokico, new oil and so it goes on to get rid of pulsing.

It's always a relief to finally get on top of persistent problems. 

[Andre]

Might be, might not be as there are many reasons for pulsating -  not just the calipers.

[Yoda]

I am watching this post with interest as I have just purchased a set of 4 pot Nissin callipers.

[froudy]

I think I posted this elsewhere about disc problems.It makes good reading.

http://blackshadow-uk.co.uk/Fitting.html