Shimano cable-pull disc brakes
06-15-11, 03:13 PM
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Shimano cable-pull disc brakes
Any tips for adjusting/servicing these? I picked up a Trek 4300 with the Shimano discs.
At first glance, they appear to be in good shape but I do like to go over everything before I put a bike up for sale.
I noticed that the rear had a bit of drag after I pulled off the rusty chain, but when I re-installed and centered the wheel it was much better.
I see there's a pair of allen-screws that apparently allow a centering adjustment....
At first glance, they appear to be in good shape but I do like to go over everything before I put a bike up for sale.
I noticed that the rear had a bit of drag after I pulled off the rusty chain, but when I re-installed and centered the wheel it was much better.
I see there's a pair of allen-screws that apparently allow a centering adjustment....
06-16-11, 03:43 PM
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bump.
I've never serviced these or I'd pontificate .. at length ..
I've never serviced these or I'd pontificate .. at length ..
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06-16-11, 09:46 PM
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Most disk brakes have the slotted mounting holes that allow the caliper assembly to shift left or right a little to center itself over the rotor. Loosen these, squeeze the lever, re-tighten, then test again. Shimano's mechanical disc brakes have a second mechanism that uses allen keys as well to shift the pad position in the caliper assembly. Then adjust the cable tension by unscrewing the barrel adjuster on the brake lever.
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