BREMBO RADIAL MASTER CYLINDER

[m1keyp]

I am considering fitting a radial master cylinder.

Should I do it?

Will I notice the difference?

Am I right in thinking that the corect size is 19mm bore/20 ratio?

Where is the best place to buy it?

thanks

[Jasper]

Yes,yes,yes and Nelly at Cornerspeed.

[DJ Tera]

Don't go for the Brembo, it is way overpriced for what it is (cast, no brake switch etc)

http://www.redracingparts.com/en/product/mastercyldiscacc.htm

CNC machined, brake light switch fitted (a brembo one is £30+ :o ) with flip-up levers to prevent them from snapping

http://www.redracingparts.com/fotofz/FDR0009.jpg

And they are TUV approved as well :cool:

217 Euros, Thats about £150

[Edited on 9-6-2004 by DJ Tera]

[Harv748]

ditto Jasper.

just bought and fitted one from Nelly. he also has the brake light pressure switches in stock.

Can be a little fiddly to fit. Very little clearance I found between the throttle assembly and the clip on part, where the MC will sit. I had to trim a little lug off the switch gear housing to get it to fit properly. No big deal, and not seen when fitted. Also the reservoir needs to be relocated.

I have fitted P4 calipers and SBK pads prior to fitting the MC and the total package is now eye-poppingly good...infact I would go as far as saying it would be a liablitly in the wet...and is probably over kill for the road..but it is nice to know the stopping power is there if I need it!!

For the track...its the dogs danglies:D

[Nattyboy]

EVERYONE should do this. Fantastic peices of kit. Bad timing though..ive just flogged flanker a brand new DP superbike upgrade kit with all the gubbins included !!!

I would recommend the 19x18 version (as used by the hodgemeister!!!!) - nice feel.

Nat

[DJ Tera]

Don't matter - Mikes listened to reason and sensibly gone for the Discacciati radial cylinders :P

Mine should be here by Monday too :sing:

[Edited on 9-6-2004 by DJ Tera]

[m1keyp]

Thanks for the replies!

Went for the DJ tera option but got sucked into the clutch MS aswell.

They replied to myorder in minutes so i will keep you informed.

Thanks again Mike

[Mr_S]

Mike, DJ

Which Discacciati did you order, and did you order anything else to help with fitting?

[DJ Tera]

Just the m/cyl mate (19mm), it comes with a brake switch, and I was told to use the original brakeline and reservoir :)

Should be here by Monday - tax free too, gotta love the Italians! :eureka:

[Edited on 10-6-2004 by DJ Tera]

[m1keyp]

Hi Mr_s

Fitting should be straight forward no other bits are required.

My handle bars are non standard (www.cyclecat.com ask for Alfred) fully adjustable height and angle but I do see a problem.

I will let you know when they arrive, i liked the fact that the brake switch was fitted and that the levers flip up

Mike

[Rattler]

If you're upgrading the brake m/cyl - its probably worth installing seperate brake lines for each caliper at the same time.

I've done this and whilst I can't be sure of its absolute benefit as I did it whilst changing the m/cyl - I'm assured it offers considerable benefit over the standard t-type brake line setup.

Tim :frog:

[antonye]

What's the ones that Casoli have then?
Race: http://www.casoli.co.uk/products/casolidf.htm
Road: http://www.casoli.co.uk/products/casoliis.htm

Are these not the right ones?

[DJ Tera]

Antonye the 2nd link is the 999 type radial cylinder - should fit straight on and comes with a brake switch - looks crap though!!

[Rattler]

Anthonye - The first link shows the ones I've got - both brake and clutch, and they're pretty much the best you can get IMO.

There are billet ones that are around twice the price, but I'm happy!!!:roll::roll:

[Mr_S]

That's the order placed,

now to choose some brake lines & pads

Suggestions????

[m1keyp]

Carbone lorainne

[m1keyp]

Antonye

They are ugly!

Mike

[Rattler]

I'm using Bendix pads - these seem to be the pads of choice these days.

And HEL brake lines, there are others around too, but these have a good reputation.

Tim

[Rattler]

I got my hoses from the guy advertising these;

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=25623&item=7904813141&rd=1

Tim:frog:

[Rattler]

There's a second hand brembo brake m/cyl on ebay that seems a pretty good price if anyone's interested?

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=10448&item=7904590370&rd=1


Tim:frog:

[Mr_S]

I've bought stuff from the guy selling the M/Cyl.

If only he'd told me he had it last week when he brought my seat unit down....

[antonye]

Lol! Thanks for the comments guys - I would have thought that paying the extra 30 quid or so for the Brembo would be the better option, but wasn't sure if it was the same one.

The race version needs a special brake light switch (banjo bolt kinda thing?) which obviously ups the price though.

I didn't think the road version ones were that bad myself, although I guess the "triangles" look of the fluid resevoirs will be in conflict with the "circles" look of the rest of the 748/916-998 bike...

[Rattler]

There is a huge improvement going to the "race" brembo m/cyl.

You need a banjo bolt with a brake light sensor in it - but as above, I'd suggest getting the double banjo bolt one that allows two brake lines and a brake light sensor.

Tim:frog:

[DJ Tera]

Just got mine this morning - only confirmed the order at 4pm yesterday - took less than 18 hours to get here from Italy - these guys are GOOD :sing:

Guys, the quality of this machined version is on a par with the CNC brembos - there's simply NO comparison to the cheap cast ones; smooth finished surfaces, switch pre-installed, not bad for £155 delivered in under 24hours!!

Thats quicker than most shops here deliver - I know where I'll be buying my **** from now! :D

[Mr_S]

Hmm, I got a confirmation e-mai lfrom them today, got stung for tax (20%) and 10-15 days delivery. :(

Tax ain't a problem, but delivery is..

[DJ Tera]

Mike and I probably snapped up the last two :lol:

I went to www.carpimoto.it in the end - they had them in stock ready for delivery....

If you have a VAT code you just stick it on the order form and you don't pay the tax :D

[Mr_S]

Don't have a VAT code, but just cancelled with RED Racing and going to Carpimoto, just confirming they have stock.

[m1keyp]

Didn't I start something here

DJ has his and I bet mine will arrive to be signed for tomorrow while I am at Silverstone.

DJ I have ordered the HEL lines form the guy on Ebay and will as advised convert to two lines rather than the t piece on the front.

Mike:sing::ninja::frog:

[DJ Tera]

Dumbass that I am I forgot to order a new mounting bracket for the reservoir DOH! :lol:
Took ages to saw away the little locating lug, its now bolted on....

I'm thinking of drilling a mounting hole on the top yoke and bolting the reservoir directly onto there, does anyone know whether fitting a smaller reservoir will affect the braking?

[Mr_S]

Mines ordered and confirmed no, HEL lines ordered directly from HEL (2 front & 1 rear).

Now for pads, and a reservoir bracket :eureka:

[Rattler]

I'm not sure that the reservoir should be mounted too solidly - ie bolted hard onto a yoke etc... there is a certain amount of flexibility in the mounting bracket and this is used to stop the fluid from being shaken too much????

I've been told this - not sure how much truth there is in it though!!

Tim:frog:

[DJ Tera]

I would have a rubber bung isolating the reservoir from the yoke - I really can't see another way of mounting it :(

[Rattler]

On my SPS, when I fitted the bremo race one, I used a strip of ally that was bent and fixed to the brake m/cyl mounting bolt.

Any news on the wheels?

[m1keyp]

DJ email me a photo when done please

Mike:puzzled:

[Nattyboy]

DJ - A couple of points mate..

Firstly, I think youll be fine mounting the reservoir to the yoke. The 888 SPS's and Corsa/Racings came with both the reservoirs bolted directly to the yoke....with some rubber mountings to take up vibration I think youll be OK.

A good tip for mounting the reservoir is to use the reflector mount of a push bike. The holes lined up perfectly for my bike, and the ally is soft enought to be bent into position..and it looks 'right'...perfect !!!!! Even my mechanic was impressed !! Available from a mates garage or your nearest halfords I guess !!

Brembo do a custom fit one but the price is a p*** take !!!

See pic...hope that helps.

Nat:

[Edited on 12-6-2004 by Nattyboy]

[DJ Tera]

Cheers geeza! Just one question - doesn't the reservoir get in the way of the clocks? Would a smaller one affect braking?

[dukess1999]

Hello,

I fitted a Discacciati master and calipers on my 748 a few weeks ago with Hel twin lines. I made a small alu. 1 inch bracket which attaches to one of the front bolts on the clip-on clamp and used a spacer and rubber washer to attach the reservoir and give it some cushioning. I bent the bracket to keep the reservoir as horizontal as poss. There were some variable pressure issues to start with that I think were to do with a warped disc but works great now, and the only clearance issue is the lines cutting into the foam around speedo/rev counter at full lock. I'll post a pic if I can find a battery for my camera.
BTW tried to fit a 749/999 radial master, and unless I'm missing something, it was never going to go on; the master came up against the clip-on clamp about an inch too far down the bar, pushing the throttle grip well over the end of the clip-on.

[Nattyboy]

DJ...ref; reservoir obscuring clocks, I moved down to a smaller screw top brembo reservoir, as opposed to the standard 888 one as it did obsure my view very slightly, but your std reservoir should be OK I think mate..

Nat

[Mr_S]

My M/Cyl is now sat on my desk, it's everything DJ says about the build quality, stunning. :D

As soon as the lines and pads arrive the fitting begins...

I've plenty of ally strips to create a bracket or two with.

[m1keyp]

My master cylinders arrived today WOW, as I have non standard handle bars (www.cyclecat.com) master cylinder position should not be an issue.

Frame sliders arrived today aswell

Mike

[Mr_S]

It's all fitted up now

Radial Discacciati
HEL Lines
EBC HH pads
DOT 4 Fluid

Cleaned all the calipers up at the same time, just got to get some spades for the brake light switch then off to pull stoppies :devil:

[m1keyp]

Mr-s Any prob;lems with the brake light switch?

I cannot get mine to lock off

Mike

[Mr_S]

Mike,

It took me a while to realise that there's a tiny little grub screw (allen bolt) in the pivot point of the lever that you tighten up, and not the big nut that I tried first. The instructions are a bizarre translation from Italian (as bad as BabelFish) and not very clear.

This pic should help you find it, although if you're tightening that already, then I don't know :puzzled:

http://www.chathamclose.com/pics/mc1.jpg

Jason

[Edited on 18-6-2004 by Mr_S]

[m1keyp]

You got instructions?????

Thanks for that i had not noticed it and never would have.

All sorted now

Mike

[DJ Tera]

LOL you didn't throw the packaging away did you? ;)

[m1keyp]

Mine arrived in a cardboard box and bubble wrap, I have trouble with the bleed on the master cylinder weeping, did your instructions include torque settings.

I am S**t scared of tightening any more

[Mr_S]

I stuck with the torque settings that came with my brake lines

min 14ft/lbs
max 24 ft/lbs

If it's tight & weeping, something's not right, it should only need a slight nip up to close it fully.

The instructions (all 4 lines!!) were printed on the back of the packaging

[m1keyp]

The brass bleed nipple on the master cylinder is where the weep is coming from.

Strange i dont feel that they have been over tightened.

[Mr_S]

Mike,

Is the weep you're getting constant each time you hit the lever, or is it that there's a bit of fluid around the nipple after you went out and rode it?

If it's the latter, it could just be the last dregs of fluid left in the bleed nipple being thrown out, as there's always a little left in the end of the nipple after you close it off.

On another note,

These brakes are scary good now :roll::roll:, I've got to completely rethink my braking points (and probably adjust the front suspension too...)

I also changed the rear hose (it came in the kit so..) and after bleeding fresh fluid through until it ran clear and bubble free, it's still cr@p.

Think I might bleed the clutch through next..

[m1keyp]

I think its the dregs, the brakes are awesome, SO MUCH FEEL

Did you get the clutch lever aswell? If not get it. I have it fitted with the MPL tuning parts slave (£85)that the guy sells on ebay and the difference is fantastic.

Thanks for the reply

Mike

[Mr_S]

I don't find the clutch heavy!

I was going to replace the hose during the winter layoff, so may do the lever and slave at the same time if it's hugely different, need to try one out I think.

( I want a slipper tho' so cost is a consideration)

I'm going to do the fluid as I've loads left over, don't want to waste it and don't know when it was last done...

[m1keyp]

Don't find the clutch heavy?

Mr-Schwarzenegger?:lol:

The clutch slave is fantastic in traffic etc (into brands next month)

[DJ Tera]

Mate it ain't that bad, you get used to the clutch after a couple of rides through Central, and I deffo aint Schwarzegger :lol: