Took the Blade out Sunday for it's first 200 mile blast of 2012 . Over the winter iv added Dymag Wheels Braking Wavey Discs Accossato Master Cylinder New pads . Iv been out for a few shirt runs to run the brakes in and they have been amazing . 19x20 cylinder so it's been instant bite and pull to hard and your over the bars ! Now for the problem. On the way home yesterday after about 150 odd miles and about an hour riding hard , I noticed more travel in the front lever . Still strong brakes just more travel . I put it down to heat fade but I took the bike to work today and it's stayed the same . Any Ideas ? No leaks any where and I bled it all throu 3 or 4 times when I installed all the kit . I
sounds like air Dan. Give them another bleed just in case. Doesnt the new MC have a bleed nipple on it as well?
Did you bleed it with the pistons fully home in their bores or with the pads in? It sounds like youu have a small amount of air caught behind the pistons which gives you the extended lever travel. I use a block of wood that sits exactly in the caliper when i bleed the brakes, this ensures no air can get trapped in the piston bores.
This is the way i always bleed the brakes so i hope this helps..... try and get someone from the hospital to get you a big syringe put the tube around it and pull the brake fluid through the nipple... is draws the air right through ... i always start at the bottom forks and then do the nipple at the brake lever and then do the bottom again ... just done it that way on my own bike with no problems...hope it helps
Yeah i done the callipers first then the cylinder nipple. Im gonna bleed it again tonight . Its gotta be trapped air that has moved when its got hot as the callipers only have 3k on them .
Think i may have sussed it out . The Wavey discs came with the wheels used and i kept my pads that have done 3k on the standard discs . Is it possible that the pads had lines and grooves from the standard discs and when iv fitted the new wheels and discs and bled the brakes for the new cylinder with the pads up against the new discs then gone out and bed them in which has cut new grooves in the pads moving them in a fraction and giving me more travel at the lever ?? If that makes sense lol
It does make sense, unsure if they would do it that quickly ? but is certainly one explanation, as its travel of the lever and not a general spongy feeling that's bugging you isn't it It took forever to bleed my fronts after fitting the hel lines and after a couple of days some air collected at the MC so bled them again and they seem good again, the rear I have given up on unless anyone knows a MC that will fit that does not cost a fortune
I cant be much help dan. But my accosatto MC 19x20 is on and done 200 ish miles and its prefer. Such a great bite from it. Maybe take the pads out aswell and see what the contact surface looks like??
One still is and if I pull to hard I would endo . It's just after a couple of hundred iv gained some lever travel . I'm just about to bleed It all throu so fingers crossed that sorts it
It's normal that small air bubbles can gather and cause some extra travel, norm a bleed up days later will get the last gone and things will settle down. Pad ware should not effect it. Did you fix it?
+1 on that. Pad wear will not affect lever travel as the pistons move out in the calipers to compensate for this wear. otherwise, when the pads were worn you would have full lever travel and no braking force.
Yeah I got a few small bubbles out , bled the system throu a couple of times and it's back to finger endos !! Ha ha
