'09 Rear Brake Over-Heating/Improvements - Kawasaki KLR 650 Forum
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post #1 of 52 Old 02-16-2015, 10:29 PM Thread Starter
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'09 Rear Brake Over-Heating/Improvements

I have a friend, riding a '09 KLR650.
Twice, while in the STEEP, HIGH Mountain Passes of Colorado he has over-heated his REAR Brake til the point of 'Mush', Nothing, No Rear Brake.
I have put my hands on his FRONT Caliper/Rotor and suggested that he USE MORE Front Brake! But he likes to rear brake 'slide' the corners.
He suggested, just last night, that it 'Seems' to happen at Altitudes of 10,000 foot and above, seldom if ever below that altitude. Makes some sense to me to be altitude related, but!

Does anybody Know of a REAR BRAKE MOD for 2008 and UP, that might be beneficial to a Quick riding, Rear Braker?

He has thought about J-B Welding or actual WELDING of 'fins' to his Rear Brake Caliper!

Thoughts? Actual HELP Appreciated?

Just a test edit.

pdwestman
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Last edited by pdwestman; 02-19-2015 at 02:06 PM. Reason: just a test
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post #2 of 52 Old 02-16-2015, 10:48 PM
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Paul -

You have given him sound advice and he seems to prefer to overuse the rear brake in spite of that. To each his own; if he was going to high-side he'd have done it already.

I have no idea if this product will fit the KLR, but this is the general idea. Take a look here.

I think there are other, similar products out there, but I've never looked for one for the KLR.

Tom

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post #3 of 52 Old 02-16-2015, 10:58 PM Thread Starter
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Thanks Tom,
Link sent!!

pdwestman
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post #4 of 52 Old 02-16-2015, 11:01 PM
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I grabbed this from a photo of my '09 shortly after I bought it. The only difference here is the stainless brake line versus the OEM brake line.


One of those radiators would stick up a bit, but I don't think it would be too bad.


Tom

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post #5 of 52 Old 02-16-2015, 11:11 PM
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By the by, what brake pads is he using? He might try something less organic and more metallic, though that can lead to brake pads that last longer than the rotors do.

Tom

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“She went out slowly. The way she did it hadn’t been learned at business college.” -Philip Marlowe

“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte


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post #6 of 52 Old 02-16-2015, 11:18 PM Thread Starter
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Thanks again, Tom.
OEM brake pads, so far.

pdwestman
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post #7 of 52 Old 02-16-2015, 11:27 PM Thread Starter
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Tom,
Do you Not have 'scource' marks / rub marks from the muffler on you rear brake hose, yet??
Looks to me, like it is a 'little too long'.

I know that the forward caliper pin 'boss' will Strike an FMF Muffler at full suspension travel, with 1" lowering LINKS!

pdwestman
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post #8 of 52 Old 02-17-2015, 12:28 AM
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Paul -

In theory it might hit, but it hasn't yet. There is 9" of clearance between the top of the loop and the bottom of the GSXR750 muffler.

Those stainless lines came on the bike and I am not happy with them. They work well enough, but I think they are made wrong, both the front and the rear. I think whoever made them had never worked on a KLR and had never checked the fit.

Both of the lines should have one fitting that turns up and one that turns down, but they both have fittings that turn the same way on each end.

Honestly, I don't think they are an improvement over stock and I'll probably put stock ones back on at some point.

Tom

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“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte


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Last edited by Tom Schmitz; 02-17-2015 at 12:38 AM.
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post #9 of 52 Old 02-17-2015, 12:38 AM
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Here's a shot showing the clearance.


Tom

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“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte


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post #10 of 52 Old 02-17-2015, 04:37 AM
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Just askin': What's the mechanism of disk brake failure through excessive heat? Boiling of brake fluid (i.e., change-of-state from liquid to gas)?

Drum brake fading from heat is relatively easy to understand, given thermal coefficient of expansion of brake drums. Disk brakes remain relatively fade-resistant, comparing designs.

Just wondering, sincerely, at the mechanism for disk brake failure relative to heat.
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