Brakes - Page 2 - SV650.org

TSM · 10-02-05, 08:09 PM

What is the mounting size of the SV, is it 65mm or 40mm lug?

Sid Squid · 10-02-05, 09:17 PM

Quote:

Originally Posted by jambo

Eh?

Any Brake master cylinder will work with any caliper, but you're unlikley to get the bext outright performance from them. All the master cylinder does is force brake fluid into the system applying pressure behind the pistons, fundametally all master cylinders work the same. Granted if the master cylinder was off a 1 disc 1 pot 125cc bike it would not be up to task but I see no problem here.

No so, if the bore of the M/cyl is too small compared with the bore size and number of pistons in the caliper/s, the lever may well have to great a travel before the pads grip, it may be so great a travel as to not happen before the lever hits the 'bar, it's dependant on how much fluid, (volume), is required to move the pistons a given distance.

Balky001 · 11-02-05, 08:52 AM

Quote:

Originally Posted by Sid Squid

No so, if the bore of the M/cyl is too small compared with the bore size and number of pistons in the caliper/s, the lever may well have to great a travel before the pads grip, it may be so great a travel as to not happen before the lever hits the 'bar, it's dependant on how much fluid, (volume), is required to move the pistons a given distance.

How important is the ratio figure, for instance Brembo do a 19 ratio, 18mm bore, and a 16 ratio, 18mm bore. Would a too small a ratio also be inaffective?

11-02-05, 09:47 AM

Quote:

Originally Posted by Balky001

Quote:

Originally Posted by Sid Squid

No so, if the bore of the M/cyl is too small compared with the bore size and number of pistons in the caliper/s, the lever may well have to great a travel before the pads grip, it may be so great a travel as to not happen before the lever hits the 'bar, it's dependant on how much fluid, (volume), is required to move the pistons a given distance.

How important is the ratio figure, for instance Brembo do a 19 ratio, 18mm bore, and a 16 ratio, 18mm bore. Would a too small a ratio also be inaffective?

The They also do a few more than that. Their 19mm bore can be had with a 20 ratio (for most four pot calliper sports bikes), an 18 ratio (for four pot calliper sports bike with brembo race callipers) and a 16 ratio (for single four pot callipers) and that's before you even consider the 16 ratio stuff.

It's quite a challenge to get the best from your brakes by matching the master cylinder with the rest of the set up.

10-02-05, 08:09 PM	#11
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