[chaf]

Hey -

I have an '02 M750D with the coffin masters and I'm thinking seriously about replacing them with remote-reservoir type cylinders - both for later ease in fitting clip-ons and because they look so much cooler

Anyway, so I see everyone sells a regular remote-reservoir brake master cylinder, and everyone also sells a "radial" MC. Could someone explain to me how the radial type works? I assume it is in some meaningful way different from your standard piston-in-a-cylinder setup... What advantage does it provide, operationally? Is the benefit worth the (substantial) added cost for a semi-aggressive street rider?

Thanks.

M.

 

[Guest]

http://www.motorcycle.com/mo/mcnuts/radial_brakes02_1009.motml

and

http://www.motorcycledaily.com/13november02radialbrakes.html

and


http://www.aprilia.com/portale/eng/depth1.phtml
:

 

[908SSP]

Hey Retro I love your avatar. Your confusing radial calipers with radial masters two different things. Typically radial masters have larger pistons so it takes more pressure and less movement of the lever. On a race bike this valuable for a couple of reasons. Since it takes more pressure it is easier to modulate the brakes. Since the pistons move more in relations to the lever movement it is easier to recover from a bad case of head shake which can push the pistons back in the calipers. The radial master have the option often seen on race bikes to have remote lever adjusters this allows the rider to adjust the position of the lever during a race with his left hand. I use radial masters on three of my bikes once you have used a 19x20 radial you won't be happy with anything less. by the way if you do decide to buy a set buy them from Yoyodyne and ask for his brake light switch doohickeys it works much better then a pressure switch.

This is an old picture but it is the best I can find of one of my bikes install.

 

[Guest]

Yep, pretty sweet avatar huh?
You can buy those covers from cycle cat.
I recommend them.
:

 

[Guest]

Your confusing radial calipers with radial masters two different things.

took me awhile to figue out how to leave out the image.

that's so funny..... I would say more like dazed and confused.
;D

 

[Guest]

hey retro,
i'm not sure if you realize it but alex is the guy behind a lot of cyclecat's designs/products/machining, including that cover. quite a skilled guy with the mill (go alex!)...
i'm a big fan of c'cat products myself. it's just my wallet isn't. ha!

as for radial master cylinders, alex gave some very simple explainations. personally, i can't wait to try them on my bike (once it's roadworthy)!!!!

 

[Guest]

alex who?

 

[Guest]

;D

The avatar comment was an attempt at the often ill fated comedic twofer. Humour plus a plug. Hard to pull those off though.

Funnier still was I was on ca-cycle works site looking at the forged radial brembo cylinders as I was stamping out the caliper links.

yep I too am a c cat fan. I just got the triple and am waiting patiently for a bolt package for my rear sets, hint hint.

 

[Guest]

The Brembo radial master cylinders are a great upgrade. You'll get better feel and leverage so you don't have to squeeze to hard (two finger braking!). The levers are easy to adjust as well.

We just received some miniature german made brake pressure switches that work great for the brembo GP radial brakemaster cylinder. They are less than a quarter of the price of the fancy billet switch assembly. The GP radial brake master cylinders are on sale too ($239)

 

[jjtaras]

do the radial masters require a new/separate reservoir?

 

[Guest]

If you have the rectangle reservoirs, you will need the remote reservoirs, some line and brackets. Reservoirs are about $15 each. Line is cheap from the auto parts store. I made L brackets from some spare aluminum strap on my 916. I used the billet reservoirs on my monster. Those came with straps.

 

[Norm]

If you're looking for radial masters, take a look at the Discatati(sp) sold by www.redracingparts.it I perfer them over the Brembo ones.

 

[Guest]

do the radial masters require a new/separate reservoir?

Yoyodyne sells a brake reservoir bracket that you can use/adapt for remote reservoirs. Go to their web site under "Brakes-Other" here's the link http://www.yoyodyneti.com/detail.aspx?ID=1509

they also sell the reservoirs and other obscure Brembo bits