Louise rips the nuts off anything Avid has ever made, IMO. She's probably the lowest and easiest maintenance brake you can get, and power, modulation and fade resistance are way, way better than any Elixir I've tried.
I believe she's heavier than the Rsl, so if if what you have on is powerful enough for you, it might not be a significant upgrade. Personally, I find better brakes affect my speed more than a little weight, so I know which way I'd go.
I have the 2011 version of the X0 brakes. I won them at a bike festival.
First off they are very difficult to get bled right to begin with. Spongy feeling, can never seem to get air out of the lever. I’ll pull on it with the syringe and get bubbles out forever, and then seal it up tight and it still doesn’t work, I’ll hook it back up and pull more air out. That could just be me though – I took it in once and the mechanic got it working well. He apparently knew what he was doing. I hate trying to do it though.
They howl. God do they howl, chattery, turkey gobbling sounds. If I put anti squeal brake grease on the back side of the pad it goes away for a while. I’ve sanded the pads and rotors and that helps for a while, but it always comes back.
Lastly – the braking power has never been that good. I can pull as hard as I want on the front lever and it would never lock up.
I’m just not impressed.
The Sram X9 drivetrain though – love it. But I’ll be looking to get XT brakes though this winter.
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