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Rear Brake Fade maybe?

Flangeman

Flangeman

2015-09-16 08:25:00 UTC

Another vague question from me.
Recently did a run to Gingers Creek (One of the 'box tick' rides that I am lucky to live near) and noticed that coming in to some of the corners later in the run up I was having a lot of rear brake travel on some corners but not others. I thought it might be abs related but after doing some homework realised that the brakes aren't linked. I thought they were for some reason. I do tend to use the rear brake as a safety valve/ comfort zone 'go to' in corners so I use it a lot. Looks dreadful being followed on Gopro. I do trail brake with the front also and often notice the rear pedal pushing back on my foot when using both. (Seems a little excessive sometimes). Anyway considering that there are between 3 and 4 hundred thousand 35khm bends between Wauchope and Gingers Creek Roadhouse and I was rooted when I got there would it be safe to call it brake fade? The brakes are awesome but it puts the wind up you when you find yourself dragging your safety valve coming in at warp 9 and it feels like no ones home and bloody hoping the front works because I really am going to need it right now. But of course their not linked so that's okay, unless the abs cuts the front? Don't think about that, trust the technology. The rear reservoir has colour and I am going to replace it tomorrow but I only have 5600km on the beast. I suppose I am working the brakes reasonably hard. What fluid changes are other guys doing? I haven't had Brembos before. I have come from a VTR1000 firestorm which had dreadful brakes initially but were super bitey after I upgraded them and there was no abs there and lots of practice with trail braking to the apex etc. chalk and cheese though. Thanks.

Flangeman

Flangeman

2015-09-16 08:28:00 UTC

This the 1290 sorry forgot to mention that.

Flangeman

Flangeman

2015-09-16 10:35:00 UTC

ABS can trigger on the rear only if you're braking hard on the front at the same time.

Which is why they gave us supermoto mode, which allows you to lock the rear if you want to.

lc4

lc4

2015-09-17 03:45:00 UTC

I changed the rear brake fluid today and it was pretty cooked so it will be interesting to see if there is an improvement.

Flangeman

Flangeman

2015-09-17 07:37:00 UTC

That route is a great ride so good I came away walking for a few months and a few thousand dollars lighter
Like the 990 the 1290 has a feeble rear brake and it`s easy to boil the fluid if you like to trail brake.

Flangeman

Flangeman

2015-09-18 02:04:00 UTC

Flangeman, when you "changed" the rear brake system fluid did you purge all of the rear caliper fluid or just do the: "pump, hold, open the bleeder, close the bleeder" method? If you did and didn't bleed and purge the old fluid from the caliper you will still have a caliper full of old fluid.

See my post in this thread on how to purge the brake caliper of air and old fluid: viewtopic.php?f=5&t=25663 you'll need a friend to help or rig up a weight to keep the pedal down and close off the brake line so the old fluid will go out the bleeder and not back flow to the master cylinder.

Hope it helps.


SD#1