Shimano BR-M445 rubbing.

[sk4tec]

Hi guys,

I've just bought a Voodoo Bantu. Its a great bike and I really enjoy riding it. I problem since new is that the front brakes always seem to rub. The guy at Halfords had a few goes at sorting it out. I've done a bit of Googling (I'm not brave enough to try what's listed in the manual http://techdocs.shimano.com/media/techdocs/content/cycle/SI/SI_8V40A/SI-8V40A-001-00-ENG_v1_m56577569830696758.pdf - for aligning the caliper incase I make it even worse).

It was acceptable rubbing only over bumps making a "plink" noise now and again. But then I fell off the bike (slippery wooden bridge and not being used to disc brakes). It was slightly worse. Damage to the bike was a hard knock scratched pedal and bar end.

So I thought taking out the rim and re-seating it might make it better - nope. Made it a lot worse. The tech document states:

• The SM-RT53L/M 203/180 mm rotors has a larger diameter and greater
curvature than the 160 mm cross-country rotors. As a result, it may touch the
brake pads

The Bantu has 160 at the back which don't touch and 180 at the front which do touch. But I don't really get what its getting at???

Anyhow, I guess I need to take it to Halfords for a 3rd time and see what they can do. Anyone got any tips\advice?

 

[02GF74]

if the disc touches the pads and some points, then the disc is not running true. it needs to be bent to clear the pads - search youtube on how to do this. if it is touching all the way along and you have clearance between one pad and disc, then the calliper needs to be centred - again youtube will tell you but simplly undo the calliper bolts, applly brake and do up the bolt - if that does not work, undo the bolts slihtly and push the end of the calliper by a tiny amount until you have cllearance - you many need to do this a few times.