Bicycle Mechanics - disk brake adjustments
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I have mech. disk brakes on my 2002 Brodie Bruzza and although the front brake very rarely needs adjustment, the rear one always seems to need tightening.
I use the front brake much more often and yet the rear brake lever is once again so squishy, I can pull it all the way into the handlebar.
First, is this common with disk brakes to need such frequent brake adjustments ?
Second - how do you adjust the tension on the brake ? I don't want to have to go to the bike shop everytime the brake needs to be tightened.
08-03-03, 03:51 PM
Seems like you caliper isnt in line with th erotor properly. IF one pad is closer to the rotor than the other, the squishyness is coused the rotor flexing.
#1) make sure the rotor is in line.
#2) Turn the adjuster knon on the lever right in.
#3) lossen the cable at the caliper, and close it on the rotor, then tighten the cable at that position.
#4) back the bolt on the lever off a few turns until there is enough room for the rotor to spin, but still have bite when u need it.
IF the problem isn;t what i think it is, i dont believ i can help you. Someone will have to take it from there.
Justen, you need to know for sure if the disc rotor sits square in the caliper and that it equidistant between the pads. You might need to use some shims on the bolts to adjust the caliper offset. You can't do much with the rotor, but shims might help. Ask the lbs maybe. You could do a line-of-sight check yourself. If there is any error with the position of the rotor you might see it. When adjusted, it's quite normal to have a slight drag on the wheel but it should be skim type of motion.
I guess the internal mechanical parts of the caliper are in good condition, nothing seized, sticky, floppy?
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