200mm Rotor Users
Comments
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yeehaamcgee wrote:Bleeding doesn't prevent boiling, or prevent them from being utter shite.
Old (especially DOT 4) water contaminated bleed is gonna boil faster than a good fresh bleed.0 -
And if the brakes are functionally fine, how would water get into them, exactly?0
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ive used most versins of juicys and still have sevens on my edison, they work fine for me, maybe i have been lucky.
i use big discs and sintered pads but to be fair, i ride very slowly.0 -
yeehaamcgee wrote:So are you suggesting that I'm a mechanical buffoon?
I think you're an organic buffoon. But there's definately some evidence that you're some sort of evil robot to be fair, so I'm keeping an open mind.Uncompromising extremist0 -
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mrfmilo wrote:DOT fluid is hygroscopic
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so? that is a good thing.
water in a Mineral based system is a bad thing as it just sits there at the lowest point waiting.
water in a braking system is not actually a bad thing. Just dont get it too hot or too cold."Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown0 -
nicklouse wrote:mrfmilo wrote:DOT fluid is hygroscopic
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so? that is a good thing.
water in a Mineral based system is a bad thing as it just sits there at the lowest point waiting.
water in a braking system is not actually a bad thing. Just dont get it too hot or too cold.
That is the situation I was describing, as yeehaa said his overheated.
And it surely can't be a good thing?0 -
DOT fluid is designed to work with some water in it. It also still has a higher boil point than Mineral."Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown0 -
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If its absorbing excess water, whilst sitting in your (mountain bike) brake system, then your seals are gone.0
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I do like the 203 rotors, they stop on super steep stuff. Whereas the 160's definitely don't feel as safe on the steep stuff. This could also be due to the fact that the 160's are LX's and the 203's are M4's.
So yeah, kinda pointless post really.0 -
dot fluid absorbs air too and thats the biggest problem with stored fluid .0
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I thought it sucked in the moisture from the air.0
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I'm running 160 rotors on M445 calipers, if I upgraded to 180 or 203 rotors would it place more 'stress' on the calipers in terms of heating/boiling the fluid?
Also on heavy braking the 160's can flex the 29" wheels a bit, I'm guessing this would be exaggerated with larger rotors?2011 Cannondale Trail SL 29er HERE0 -
The larger area of the rotor allows more heat to dissipate - caliper temps are reduced.
Slightly less force is put through the fork dropouts than smaller rotors, but more through the mounts - check what your fork can handle: this is the important bit.
Larger rotors make no difference to wheel flex, providing you can lock wheels up on both size rotors.0 -
Thank yousupersonic wrote:Slightly less force is put through the fork dropouts than smaller rotors, but more through the mounts - check what your fork can handle: this is the important bit.
Whereabouts would one find that?2011 Cannondale Trail SL 29er HERE0 -
In the blurb and warranty usually.0
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yeehaamcgee wrote:If its absorbing excess water, whilst sitting in your (mountain bike) brake system, then your seals are gone.
The other thing is, pushbike bleeds tend not to last all that long- we replace brakes, bikes, rebuild stuff onto different frames, damage hoses, etc etc. So it's not like, frinstance, motorbikes where cretins happilly leave the same fluid in the bike for a decade then go and do a trackday.Uncompromising extremist0 -
What?0
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What?Uncompromising extremist0
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Huh?0
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Just to add my 0.02 worth, I've recently upgraded from some 185/160mm juicy 3's to some 203/203mm formula megas on my patriot, and the formulas are just as easy to modulate, if not more so, and have bags more power. If you can't modulate your brakes on 203mm rotors without locking the wheels up, you're being too ham-fisted, or your brakes are shite (in my opinion/experience).0
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Buh?Uncompromising extremist0
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ilovedirt, there's a thing called personal preference. Different people like different things. Shocking, I know.0
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yeehaamcgee wrote:ilovedirt, there's a thing called personal preference. Different people like different things. Shocking, I know.0
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But people's preferences over lever feel differ.0
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True, though why you would want on/off brakes with no modulation is beyond me...0