Changing front master cylinder?? - SV650.org

31-07-16, 10:45 AM

Hi,

I wanna change the master cylinder on my Gen 1 SV650 for something a bit more sporty as everyone knows the brakes arent that great on those!

Anyone got any tips on what master cylinder to use? Something cheap but obviously better than the original please.

Regards

Mason

andrewsmith · 31-07-16, 01:51 PM

Have you tried rebuilding the master cylinder?
Never had any issues with mine when it was done. Parts cost around 20 for the rebuild kit 15 for decent set of curclip pliers and a can of brake cleaner

Sent from my E2303 using Tapatalk

31-07-16, 06:11 PM

Im running gsxr 750 calipers on original master cylinder and have no problems.
I know a lot of lad on the road racing circuit use the original master cylinder as an upgrade can be to much.

So as said a rebuild might sort your problems.

CB500Racer · 01-08-16, 12:02 PM

It depends on what spec class your running it in if racing, minitwins you have no option but to use the original, just make sure that the calipers are checked and the slide pins re greased, when the grease drys out the calipers stick and only the outer pad is making contact properly.

As smithereens said rebuild kit helps too. as does race fluid if your not using it.

I have used a GSXR radial master cylinder on my SV race bike. i worked well and was a much improved mod. cost about £65 - £100 ish on eBay.

johnnyrod · 01-08-16, 01:51 PM

Is that with the stock calipers CB500? What sort of improvement?

Sid Squid · 01-08-16, 02:26 PM

You can use a radial master cylinder from a GSXR, I tried one for a while and there's no question the brake action is different, but I wouldn't say it's better.

The weak spot is the calipers, I'm sure that doesn't come as a surprise.

Bibio · 01-08-16, 02:31 PM

i have used the SVS, GSXR k7-7 radial and a bandit 1250 MC. there is not much between them. i would say that i personally prefer the bandit 1250 as it has a nice 'feel' to it but still has lots of power. admittedly i use a gsxr radial front end so calipers are better, too good TBH. i also use DP pads which are the only ones that hardly fade in the wet on SS discs unlike the EBC which were dreadful.

if you want a better MC then pay the money and get something like a Brembo.

Dave20046 · 02-08-16, 10:24 AM

Quote:

Originally Posted by mase_tw

Hi,

I wanna change the master cylinder on my Gen 1 SV650 for something a bit more sporty as everyone knows the brakes arent that great on those!

Anyone got any tips on what master cylinder to use? Something cheap but obviously better than the original please.

Regards

Mason

i've a radial yamaha r6 one for sale. Supposed to be better than GSXR (especially as they were all recalled)

02-08-16, 08:13 PM

Quote:

Originally Posted by CB500Racer

It depends on what spec class your running it in if racing, minitwins you have no option but to use the original,eBay.

Not talking about minitwins

04-08-16, 10:51 AM

Yeah no worries guys i've raced minitwins back in 2014 and 2015 so i know the regs like the back of my hand

was talking about my road bike now.... going to have a look at the calipers this weekend maybe remove the pistons and clean and re-grease them first!

31-07-16, 10:45 AM	#1
mase_tw Guest Posts: n/a	Changing front master cylinder?? Hi, I wanna change the master cylinder on my Gen 1 SV650 for something a bit more sporty as everyone knows the brakes arent that great on those! Anyone got any tips on what master cylinder to use? Something cheap but obviously better than the original please. Regards Mason

31-07-16, 01:51 PM	#2
andrewsmith Member Mega Poster Join Date: Apr 2010 Location: Newcastle upon Tyne, Just south of salad dodging country Posts: 7,750	Re: Changing front master cylinder?? Have you tried rebuilding the master cylinder? Never had any issues with mine when it was done. Parts cost around 20 for the rebuild kit 15 for decent set of curclip pliers and a can of brake cleaner Sent from my E2303 using Tapatalk __________________ RIP Reeder 20/07/1988 - 21/03/2012. Always missed squire!!! Every year we meet old friends, gain some new ones, lose old ones and you always remember them all. “Live as if you were to die tomorrow. Learn as if you were to live forever.” Mahatma Gandhi

31-07-16, 06:11 PM	#3
greddrob Guest Posts: n/a	Re: Changing front master cylinder?? Im running gsxr 750 calipers on original master cylinder and have no problems. I know a lot of lad on the road racing circuit use the original master cylinder as an upgrade can be to much. So as said a rebuild might sort your problems.

01-08-16, 12:02 PM	#4
CB500Racer Member Join Date: Oct 2011 Posts: 53	Re: Changing front master cylinder?? It depends on what spec class your running it in if racing, minitwins you have no option but to use the original, just make sure that the calipers are checked and the slide pins re greased, when the grease drys out the calipers stick and only the outer pad is making contact properly. As smithereens said rebuild kit helps too. as does race fluid if your not using it. I have used a GSXR radial master cylinder on my SV race bike. i worked well and was a much improved mod. cost about £65 - £100 ish on eBay.

01-08-16, 01:51 PM	#5
johnnyrod Member Mega Poster Join Date: Jul 2003 Location: Doncaster, oop norf Posts: 2,122	Re: Changing front master cylinder?? Is that with the stock calipers CB500? What sort of improvement?

01-08-16, 02:26 PM	#6
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Re: Changing front master cylinder?? You can use a radial master cylinder from a GSXR, I tried one for a while and there's no question the brake action is different, but I wouldn't say it's better. The weak spot is the calipers, I'm sure that doesn't come as a surprise. __________________ If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst"

01-08-16, 02:31 PM	#7
Bibio Member Mega Poster Join Date: Jul 2008 Location: here as devil's advocate Posts: 11,540	Re: Changing front master cylinder?? i have used the SVS, GSXR k7-7 radial and a bandit 1250 MC. there is not much between them. i would say that i personally prefer the bandit 1250 as it has a nice 'feel' to it but still has lots of power. admittedly i use a gsxr radial front end so calipers are better, too good TBH. i also use DP pads which are the only ones that hardly fade in the wet on SS discs unlike the EBC which were dreadful. if you want a better MC then pay the money and get something like a Brembo.

04-08-16, 10:51 AM	#10
mase_tw Guest Posts: n/a	Re: Changing front master cylinder?? Yeah no worries guys i've raced minitwins back in 2014 and 2015 so i know the regs like the back of my hand was talking about my road bike now.... going to have a look at the calipers this weekend maybe remove the pistons and clean and re-grease them first!

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