I don’t understand why people find bleeding avid/formula brakes a PITA.
I guess the manuals are a bit complicated, but if you think about what you’re trying to do, it’s not hard. There’s no need to completely remove the brakes from the bike either.
[list][*]Take the wheel off and the pads out, and stick something in the calliper to stop the pistons moving.[/*]
[*]Put 10ml of fluid in one syringe, and 5ml in the other. Clamp them closed then pull on the plunger to remove some air from the solution.[/*]
[*]Take the lever off the bars, and attach the 10ml syringe to this end and the 5ml one to the caliper end.[/*]
[*]Open the clamp on the 10ml syringe, and hold the lever up so the bleed port is vertical, and pull the lever a few times, whilst gently pulling on the syringe plunger.[/*]
[*]Keeping the 10ml syringe vertical, open the clamp on the 5ml syringe. Push 5ml of fluid from the 10ml syringe, into the 5ml syringe.[/*]
[*]Close the clamp on the syringe now holding 5ml (At the lever end) [/*]
[*]Holding the calliper syringe vertically upwards, pull on the plunger a couple of times (I normally give the calliper a hard flick at this point). Wait till any large air bubbles are now at the top of the syringe, then push the plunger down until you meet resistance. Close the clamp, and remove this syringe, and put the screw back in.[/*]
[*]Take the lever and syringe and hold them vertically. Remove the syringe, and look into the bleed port to look for fluid. It should be pretty much up to the rim. Top it up with a drop or two from the syringe, then screw the cap back on.[/*]
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Job done
It took me 15 minutes to bleed front and back K24s this morning.