A month or so after bleeding my Elixirs, the levers feel mushy and travel too close to the bar. The Juicys aren't as bad, but still not as solid as they should be.
The following procedure varies somewhat from the official Avid technique and requires your brakes have pad travel adjustment. - "Pad Contact In and Out" in Avid's terms.
Don't try my technique until you understand the basic Avid procedure.
I do a bleed only at the lever and I keep the wheel and pads in place.
Now if you have air bubbles trapped in the caliper area, this technique might not help you. You should do the standard full bleed with both syringes.
Step 1 - Remove the brake lever from your bars.
Step 2 - Make your brake line as vertical (straight up n down) as possible. I stand the bike on it's rear tire and hang the lever above everything by a shoe string.
*** see pic below
Step 3 - The most important step! Turn the Pad Contact all the way IN
This maximizes the size or volume of your reservoir at the lever. If you want to see this for yourself, remove the bleed port screw after you turn the Pad Contact all in. Now looking into the reservoir thru the hole, slowly turn the Pad Contact out. You'll see how this reduces the size of your reservoir thus pressurizing the fluid in the system.
Make sure your Pad Contact is all the way IN before proceeding.
Step 4 - Attach the syringe and gently push fluid into the reservoir. Flick the brake lever a few times. Now gently pull out on the plunger. Repeat these steps, flicking the lever, until all bubbles stop coming out of the reservoir.
You don't want to overfill the system - your pads will be too close to your rotor!
If you push and pull on the syringe you should see your brake pads moving in and out. The trick is to get them close but not too close to the rotor. Spin the wheel and make sure the pads are not rubbing the rotor. If they are, pull some fluid back into the syringe thus pulling the pads away from the rotor.
Step 5 - Remove the syringe from the lever. The brake fluid should be visible in the bleed port and even weeping out a little. Replace bleed port screw. Wipe off brake fluid. Do not reinstall the brake lever back on the bar just yet.
Step 6 - This is where we turn the Pad Contact back OUT ... thus making the reservoir smaller and pressurizing the fluid in the system.
With your wheel spinning, turn the Pad Contact back out until you get the pads as close to the rotors as possible without dragging. Your lever should feel nice and hard with only a small throw needed to move the pads.
You can reinstall the lever back onto the bar now.
This stuff is probably old hat to many of you.
I just wanted to share this info with anyone out there suffering from the dreaded Avid brake fade problem. There seems to be a lot of you.
***Make the brake line as vertical as possible:
Results 1 to 11 of 11
Check out the hottest mountain bike products from these brands!
See All Interbike Coverage - Click Here »