Radial Master Cylinders

[theclaxton]

I need the diameters of the OEM radial master cylinders for the front brakes...(07 CBR, GSX-Rs have had them for a while, Maybe yamahas) If you guys can provide that info I'll make a brake analysis spreadsheet and share it with everybody.

[fabitappi]

Hm, thats about 12mm to my knowing....

[MrDude_1]

stupid side question... whats the benifit/point of a radial master cylinder??

is it feel/feedback or something else?

[theclaxton]

Basically, the load from the lever goes directly into the bar so it makes for a better feel. Anytime there is flex, that produces mush. So if your master cylinder flexes, the caliper flexes (they do flex), if the lines expand (stainless still expands, just not much) then that equals mush.

[theclaxton]

to fabitappi: is it supposed to be the same for all of them?

to all that read: I also need the ODs for the pistons in the calipers.

[SkinnE]

Brake Specs, from the service manual:


Master Cylinder ID Front 12.700-1 2.743 (0.5000-0.5016)
Rear 12.700- 12.743 (0.5000-0.501 6)

Master Piston OD Front 12.657- 12.684 (0.4983-0.4993)
Rear 12.657- 12.684 (0.4983-0.4993)

Caliper Cylinder ID Front 30.230-30.280 (1 .l902-1.1921)
Rear 38.180-38.230 (1.5031 -1.5051)

Caliper Piston OD Front 30.148-30.198 (1.1870-1.1889)
Rear38.1 15-38.148 (1.5005-1.501

[theclaxton]

Ok, is that

CBR master
GSX-R master
CBR caliper
GSX-R caliper

????

You mixed the terms piston and cylinder...oh wait, is that all CBR?

Do you know if 07 is the same as 05-06 600RR

_______________________

Does anyone know anything other than CBR?

All of the Tokico Radial Mounts are similar, CBRs have em, GSX-Rs have em, ZX6-Rs have em