S2R rear brake.

[madalf71]

Hi All.

Well after going through all the previous threads I was wondering if anyone has done the following to solve some of the bleeding problems associated with the S2R underslung brake.
Or can answer my questions.....

1/ Has anyone there moved or modifed the rear caliper bracket to mount the caliper up top? IE above the axle.

2/ If no-one has tried this, does anyone think it would be an issue, re handling when braking?

3/ Can the bleeder and banjo fittings be swapped over...I don't feel like pulling mine apart to find out.

Cheers people, look forward to your input.

Madalf71

[Speeddog]

1) Haven't seen it done, but that doesn't mean it hasn't.

2) I don't think it would make any functional difference to how the brake performed.

3) Pretty sure the threads are different.

[brad black]

is there something wrong with it?

[madalf71]

Thanks Speed Dog and Brad.

Nothing really wrong with brake, although has picked up some more free travel.

I really just wanted to satify my curiousity as why top mounting wasn't an option.

Cheers.
Madalf.

[Speeddog]

I've seen a couple of the OEM masters on S2R and 620 go bad, they were the black ones, '05 and '06 vintage.

[AndrewNS]

I had to bleed my back brake when I first got the bike, but I just had to do it once and it's been fine ever since. I'm guessing you have some sort of a recurring problem, though. Is this a common thing? I can't see why air would get in just because the caliper is upside down, but I can imagine it getting trapped there during assembly.

Either way, it sounds like an awful lot of trouble to those mounting points.     

[corey]

the rear brake setup sucks. just ignore it.

[FastAndLight]

I've bled mine, replaced the master (this worked for a couple months), adjusted the linkage, and done pretty much anything else I could think of.

The rear brakes suck.  The mounting sucks.  I hate to be so negative, but the engineers must have been out to lunch on this one...

That said, I'm continuing to try.  The Gilles Tooling rearsets I just ordered seem to move the master, so maybe that combined with a new reservoir (Rizoma bling) and fresh fluid will finally give me some rear brakes that work for more than a few weeks.

[krista]

the rear brake setup sucks. just ignore it.

HAhahahheheeh. That wins.

Actually, imho, if you use the rear brake gently when approaching every stop, it might be something other than a heat/noise generator later on in life...

About those threads: I have seen calipers where the bleeder and banjo are the same threads. If the bleeder has huge threads, then yes, probably the same.

Chris

[corey]

i've found my rear brake to work pretty well, despite the suckiness of the setup.
yes, it gets air in it, but it seems to be a consistently minimal amount that i'm willing to deal with.