Inconsistent Brake Pressure

So I left mine on for 48 hours and was absolutely awesome for about a week. Then it got all mushy again. So I have been doing this every in between rides which is about 12 hours usually. The most was 48hours. It still seems the creep back to being squishy though after a day or two. Any suggestions?

 

This sounds like you may have a leaky seal somewhere which is allowing air to be drawn in, maybe at a caliper piston. I’d have a close look at all the joints in the system too to see if there’s any that are wet with fluid indicating a poor seal.

 

Great advice. I will check it out.

 

I have to say that today I have tested an RS and noticed the break problem, it was not so exaggerated, but the first pump was always softer than the second and third.

seems that there is a manufacturer mistake somewhere.

 

I have owned my RS for about a week and have exact same issue with having to pump break once to make firm.
from previous bikes I knew this to be an issue with air in system, but was quite surprised to see so many people reporting same issue.
I was just going to bleed system to get the air out, but perhaps i will try the cable tie method first.

 

I've had 2 RS's and both have had this annoying "Feature". I brake fairly hard to scrub speed off then maybe a little dab just before turn in and it's really annoying as the second dab always bites harder. I'll try this and see what it's like next time I go out

 

it came down to time, just not had chance to bleed, whereas it took little effort to leave brake lever cabled tied over night. so far it seems to have made a huge difference, but i guess will see if still as firm in a week or so time.

 

Just gonna chime in with a left field view!!

I decide to upgrade the caliper on my speedmaster opinion was 3 piston was better.
Put on caliper and new hoses, bled it too many times to count must have used 2-3 litres of DOT 4. Turned them upside down held them up high tapped them and tied back to bar, but still soft
Took caliper off wheel and pumped it up till it pads were tight together and it was solid?
Put caliper back on bike and it was soft on first pull got better but not brilliant.

Turned out the caliper was not centred on the disc and after release of lever pushed the pistons back away from disc leaving a gap at the fixed disc which needed to close before getting brake bite!!

 

Meant fixed pad not disk

 

I think it was a difference in bracket thickness that caused my issue but still a good tip.

 

well I had another look at this at the weekend, as switching between riding my old ktm and speed triple it is very noticeable how much better the brembos are on my 10 year old smt!
So thought would bleed front brakes and replace fluid with fresh dot4.
And the fresh fluid has improved feeling slightly, but there is still far too much travel in the brakes.
I think will just have to take to nearest dealer to see if they can sort, as not happy with feeling at all.

 

sorry to wake this one up, but turned out the problem was the pads.
i never received a recall letter, but were replaced when bike was in getting serviced. the backing was coming away from them
sorted the problem out straight away!

 

i still get some squealing unfortunately, but i can live with that... so long as they work consistently.

 

I noticed this the first time I rode my bike. I kept meaning to make a post but hadn't got round to it. I'm used to it now. Done about 3k miles this year but glad other bikes are the same. I've bled the system and had the pads changed under the recall but no change to the second pull on the lever being shorter.
The things is the calliper pistons seem to recess back into the callipers quite a bit with time. When pulling on the lever twice, the pistons do not have time to recess as far and so are nearer the discs already on the second pull. Why this is happening though I don't know. I've tried the technique of tying the brake lever back over night on other bikes. That seems to force the pads out further in their resting state but also causes brake drag. When the pads have worn down a bit, the lever travel is just the same as it was.
I was worried this Speed Triple feature would be a problem on a trackday but it was fine actually. I guess because you are braking every few seconds.

 

It seems like this is across all Triumph's that have this particular Brembo set up. Bleeding the brakes temporarily solves the issue but does not fix it as it is not caused by air in the system but the brake pistons themselves.

So far no fix from Triumph has worked and looks like this may be an issue that we have to "just live with".

Can't say I'm best pleased after having the quickshifter issue and squeaky brakes on my Speed RS. An inconsistent brake feel isn't exactly the best way to be selling a bike that's suppose to have some track capabilities.

Will update if I hear anything back on my follow ups with Triumph.