Avid Elixir R/CR
 

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[Closed] Avid Elixir R/CR

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My elixir R (and probably the CR) rear has a piston which sticks, I've never had to service them besides a bleed. From experience has this been solved by a piston service (the £8 kit from tweeks [url= http://www.tweekscycles.com/Product.do?method=view&n=3421&p=447911&c=215&utm_source=Google&utm_medium=Base&utm_campaign=Disc%20Brake%20Spares&gclid=CjkKEQjwh7ucBRD9yY_fyZe398gBEiQAAoy4JG2TzxTNjAIgnv12tM8R14Lgv6D5fZFocCAbrnGoZybw_wcB ]link[/url])? Or is it a whole lever internals kit?

Just thinking on the basis that two lever internals will easily come to £50 so that's an excuse for new brakes!


 
Posted : 04/06/2014 8:14 pm
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I loved my Elixirs while they worked but I'd still say save yourself the trouble and just buy something else!

? I totally agree with what he says in principle but unless you're sucker for punishment I stand by the above. I didn't give up easily but would have saved a lot of money and headache if I had! If you decide to persevere then good luck to you! ?


 
Posted : 04/06/2014 8:17 pm
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sticky pistons are normally caused by the surface of the piston bore (the in/out face) degrading over time, it can easily develop scoring from running with sticky seals caused by the corrosive nature of DOT fluid and perhaps an imbalanced caliper centre over the disc brake rotor - this means 1 piston is working harder as its compensating for the offset position of the caliper

its actually very normal for DOT brake system to degrade over time, the solution if you have the resources is to rebuild the brake by draining fluid, splitting the caliper in half, removing old piston and seals, fitting new pistons and seals with DOT rebuild silicon grease, refilling the system, bleeding trapped air and installing to the bike

this kind of thing is worth doing if you are a bike mechanic with time and resources like cheap replacement parts from an Avid tacklebox in the workshop

but most riders cannot be bothered with the hassle / cost and will dump the brake for a Shimano Deore/ SLX or similar.


 
Posted : 04/06/2014 8:18 pm
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esher shore - Member
sticky pistons are normally caused by the surface of the piston bore (the in/out face) degrading over time, it can easily develop scoring from running with sticky seals caused by the corrosive nature of DOT fluid and perhaps an imbalanced caliper centre over the disc brake rotor - this means 1 piston is working harder as its compensating for the offset position of the caliper

its actually very normal for DOT brake system to degrade over time, the solution if you have the resources is to rebuild the brake by draining fluid, splitting the caliper in half, removing old piston and seals, fitting new pistons and seals with DOT rebuild silicon grease, refilling the system, bleeding trapped air and installing to the bike

thanks for the help!

I enjoy the tinkering (there is a limit though), and I am jobless at the moment.

Does the tweeks kit have all of the correct new seals?

Ta!


 
Posted : 04/06/2014 8:22 pm

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