Hi kids, after a recommendation for a bolt-on radial master to suit standard 6pot setup.
I don't know anything about sizing etc so looking to something someone else has used and been happy with the result.
No money for an aftermarket flash thing, something off another Suzuki or other sportsbike that I can find on eBay easily.
Cheers!
There are mounting kits online I've no experience of them but others will have good luck .
Be aware of disc sizes and spacing as I've had to space out my disc's 2mm on the wheel each side and the calipers 5mm as I'm using a gsx1400 wheel and disc's with bking forks and radial calipers
:cheers:
For my money I would keep the master cylinder and ditch the 6 pots, there was a write up in
one of the UK magazines where they upgraded an 01 GSXR1000 (6 pots) to 4 Pots off a newer
GSXR braking distance decreased by 10m or so from 160klm/hr if my memory is correct changed out to a newer
master cylinder no real change with the newer master cylinder and 6 pots. Posted it up on the old org and have since
lost the link. I have done the 4 pot change 01-03 GSXR 750 I think but check if going down that path, details should
be https://gsx1400owners.org/forum/index.php?topic=193.0 .
I can definitely vouch for the 4 pot conversion..
Front brakes are excellent and maintenance is far easier !
Quote from: Speedy1959 on Wednesday, 17 July 2019, 02:43 PM
I can definitely vouch for the 4 pot conversion..
Front brakes are excellent and maintenance is far easier !
+1 :onya:
+ another! :hat: :cheers:
Quote from: RickC on Tuesday, 16 July 2019, 08:49 PM
For my money I would keep the master cylinder and ditch the 6 pots, there was a write up in
one of the UK magazines where they upgraded an 01 GSXR1000 (6 pots) to 4 Pots off a newer
GSXR braking distance decreased by 10m or so from 160klm/hr if my memory is correct changed out to a newer
master cylinder no real change with the newer master cylinder and 6 pots. Posted it up on the old org and have since lost the link. I have done the 4 pot change 01-03 GSXR 750 I think but check if going down that path, details should be https://gsx1400owners.org/forum/index.php?topic=193.0 .
This makes interesting reading, esp re master cylinders
https://www.gixxer.com/forums/22-mods-how-tos/270674-tokico-calipers-6-4-pot.html
Evening gents. Yeah i trust all your advice on 4 pots being better. I also think clip posted by Barmy is a great advice. Ive been looking hard at all stuff. Mates mt10 doesnt have great brakes but can be fixed with R1 master. Takes bore size from 17.5mm to 15. Longer travel but more power. I really dont want much better brakes just a touch more feel. Does anyone know bore size of 1400 master cylinder?
http://gsx1400owners.org/forum/index.php?topic=3529.0 :cheers:
Thanks Mliv, had forgotten last years posts. So TL1000 is correct needed but i dont like the remote resevoir much.Will start searching for 14 mm that has integral fluid like 14.
Would this one work/ be ok. Has correct bore size. correct bar size. https://www.ebay.com/itm/14mm-Front-Hydraulic-Brake-Master-Cylinder-Honda-CB-Cb750-Cb650sc-Cb650-CX-GL/283514666491?_trkparms=ispr%3D1&hash=item4202ca7dfb:g:530AAOSwE-RdAUNN&enc=AQAEAAAB4BPxNw%2BVj6nta7CKEs3N0qXqqxamnwGYH2Sz7rHhmK13vgrkXIVZIO9308vuAldLYwXDA4jM8hDghxKhPBtv2PZyzbSFnYBXK5eH%2BckHLPKQR3z7%2F79c6OlrORsuJ64FkapC6YLjLHt110iepFdA2HfQT82XpMk5ixM3q4wy3hfj6IPCtYLZ89o1jM92P1sMIa1Zso7%2FaBFmelu7d3jZQkCJzfbmasqZAQUlXJryitc239n2ya9%2BjK8mpZlCtnmFZ%2FcS2X6zTfbKHIPsA2%2BFMwxJzgIOqRv5wjKhsEPXW07YoRabIYq1XO08x2%2FhS24Zb4z5kt7sHJU%2FuOaOhZxq12fKwsuld0HlkWx0qmsRjLbJMdxaThgQvrpsTrEzKSFBVtne5434Nl0etRxZy8CjeDfkDSnzOq9lsy6Z4TjyB%2FbscB2Ugif6xpzYsluOHEEIjlzfmBLdGp8pH8j8Ohnqr0CYERGYUS2%2Fi%2FGMU%2FIy5B1YTrWCATx3ohNJnmyeGdA4VIi0kkcUalfHM0tz9ozwHZP4oqSAvVlDWbiKl49dudr6Y6Sfj2G0iqUQCB9cJaF1DQ%2BwZkXScbhCa32gFkGirfvfei%2FOohI10TE6J0%2FM6TjhGMHM8J%2BlmxrecWiH8wgAqw%3D%3D&checksum=2835146664914b71786989a94e1692e01cb93a61d408
Grog,
I'm always quick to post up a Chinese bargain but
I don't know that I would use a Chinese master cylinder.
I was guilty of Googling a Brembo Chinese copy a while ago
and the Youtube review was honest but not very flattering.
Cheers,
Rick
http://customretro.blogspot.com/2016/02/a-look-at-chinese-brembo-master.html
This fella did a nice tear down and evaluation of a Chinese knock off Brembo master cylinder... Pretty much what I expected, the product does what it says on the box but the finish isn't ideal, and what you get might be down to the luck of the draw.
I've got this 16mm Brembo master cylinder from a Yamaha R1 sitting in the shed if anyone wants it..£45 UK posted...I guess it'll work with the 6 pot brakes?
Lever and pot top are a bit manky and would benefit from being replaced or polished, but the cylinder itself is fine.
SOLD...To Seth :grin:
You have a pm lol
That was quick Seth! 1 minute to sell / buy something!
Quote from: KiwiCol on Thursday, 08 August 2019, 03:50 AM
That was quick Seth! 1 minute to sell / buy something!
I just PM'd
@seth and said the same thing :rofl2:
Reckon he's part magpie . . .
FYI, a Magpie is a reasonable size bird, bit like a Rook or Raven I suppose, like shiny things & collect them for their nest etc..
It makes a bike problem go away as it happens.
It came up just at the right time.
The bking master cylinders I have for my project bike aren't going to work without lots of hassle to the clutch one and I don't want a miss match of that kind of cylinder .
I've always really wanted a remote resovour ones .
So this gets the bike running and I can take my time looking for a clutch remote resovour master cylinder .
The bking parts including plain black too s instead of engraved polished bking ones and the folding titanium leavers will be for sale shortly .
:cheers:
I thought Notty was the resident magpie :whistling:
Quote from: mjgt on Thursday, 08 August 2019, 05:07 PM
I thought Notty was the resident magpie :whistling:
He's one of them :rofl2:
My chinese master cylinder arrived. I just want to test if 14mm is correct to give brake feel i want. Not a permanent replacement. Have totally heeded all your warnings about being shit. I bolted it to some spare bars, stuck it in vice. Fitted a spare hose which i blocked off. Bled it out. Rock hard lever, cant make it bleed down. Have tried with all my strenght to make lever break. Am now confident for a test run on bike, carefully of course. Have found a Nissin supplier if im happy with feel.
@grog can you shed some light on the Nissin supplier? Looking also for a radial replacement M/C. Cheers.
I'd be a little interested in that supplier too, and your Chinese master cylinder for the giggles.
DTTW, it was here in Oz. Im sure there will be one closer to you, saw one in England in my search. Does that huge shop Andre goes to have them? Ill have a look for you.
http://www.ctaaustralia.com.au/userfiles/file/(3)NISSIN_2017_V1_17.pdf also Web Bike have lots
Thanks grog.
I don't know the theory behind between different piston/bore size. How does for instance a smaller diameter affect the lever feeling?
Do you think this would be "straight" swap? https://m.ebay.ie/itm/Suzuki-GSXR-750-GSXR750-K8-2-Radial-Front-brake-Master-cylinder-Bremspumpe-bre/382970458101?hash=item592ad16ff5:g:RXIAAOSwUctc5-WF (https://m.ebay.ie/itm/Suzuki-GSXR-750-GSXR750-K8-2-Radial-Front-brake-Master-cylinder-Bremspumpe-bre/382970458101?hash=item592ad16ff5:g:RXIAAOSwUctc5-WF)
Quote from: DTTW on Thursday, 08 August 2019, 11:31 PM
Thanks grog.
I don't know the theory behind between different piston/bore size. How does for instance a smaller diameter affect the lever feeling?
Do you think this would be "straight" swap? https://m.ebay.ie/itm/Suzuki-GSXR-750-GSXR750-K8-2-Radial-Front-brake-Master-cylinder-Bremspumpe-bre/382970458101?hash=item592ad16ff5:g:RXIAAOSwUctc5-WF (https://m.ebay.ie/itm/Suzuki-GSXR-750-GSXR750-K8-2-Radial-Front-brake-Master-cylinder-Bremspumpe-bre/382970458101?hash=item592ad16ff5:g:RXIAAOSwUctc5-WF)
My understanding of fluid hydraulic systems is that the larger the piston bore of the master cylinder, the more fluid/pressure is created by smaller actuations of the brake lever in comparison to a smaller bore cylinder..If that makes sense?
Yip, makes sense to me.
Smaller bore gives more pressure but longer travel.
Yeah, I can see that as well Grog, however, is it not about how much displacement of fluid to push the caliper pistons out against the disc?
The 'easier' braking from a smaller diameter master is correct. EG: human hand can squeeze , say, 10kg (as a figure). Hand squeezing at 10kg acting against a small bore master cylinder will move and displace 'x' amount of fluid over a given distance. The same force exerted against a larger bore will move correspondingly less distance, but because the bore is larger, the same amount of fluid will be displaced.
Now, the difference is, 'big bore' requires a bit more of a stronger hand to pull the brakes on, smaller bore requires less effort but you have to pull the handle in further to achieve the same effect.
I'm not saying this in a derogatory way at all, as we all age, our hands don't operate like we were 25 years old, they stiffen up, lots of us have arthritis etc & I can see where not being able to squeeze the brake lever as firmly as previous would come in, but you'd also have to remember the further travel, your hands / fingers have to contract tighter against the bar to achieve braking force.
I'm all for better brakes, but from my perspective, putting a small bore master isn't going to give you better brakes, it would give you easier clamping force with further to pull the lever in.
Each to their own though. :onya:
I agree Col, im just experimenting on that balance, travel v pressure. Just something i wanted to try. Might end up nowhere.
Have just bought one of these to replace my existing brembo, i love the fact it's bore adjustable 19-20-21 , just waiting for new lines then will do a write up,
On a side note have stripped and rebuilt my 6pots so there at there best, Now don't all shoot me but surely suzuki would have fitted 4pots in the first place if these were not upto the job letting alone fitting them to Hayabusa the fastest bike they produce ?
I myself considered the swap to 4 pot nissins , but after speaking to trusted people, they all agreed the 6 pots require more maintenance but are better when kept in top condition, maybe for the way we ride the 14's 4 pots are easier as we rack up more miles ?