I am installing a new campag chorus groupset on my supersix and had a question regarding the mono-pivot rear brake.
I have installed the front brake and all is centred and working fine. However, with the back brake when I press the brake lever, the right caliper (as viewed from behind) moves first and contacts the rim and then left caliper does moves to contact the rim (i.e. rather than both moving at the same time as you would see on a dual pivot, it seems that the right caliper needs to hit the rim before the left really moves at all). Is this typical of mono-pivot brakes?
The brake is centred and adjusted as per the instructions.
I went to a LBS, and they had a mono-pivot set up and the same thing was happening. The mechanic there seemed to think it was just how these brakes functioned.
Would appreciate others experience.
The outer cable tends to exert pressure on that side of the caliper, forcing it off centre.
Make sure your wheel is in straight, then use a cone spanner to hold the brake in the right position while you nip the retaining nut up. Might take a little tweaking, but once its set, it should be okay
My only technique in centering a brake is to look straight down at the tire and adjust so that there is no sideways movement of the wheel as the brake is applied.
The length of the cable housing also has an important role to play. It needs to be just right. In a nice gentle curve that heads straight down to the brake ferrule. 1/8" can make all the difference.
OP's may be too short with the effect of holding back the left side.
The mechanic dealing with this is obviously not very experienced.
How many drivers does a buggy have?
So let's just say I'm drivin' this buggy...
and if you fix your attitude you can ride along with me.
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