delusional Posted June 21, 2005 Report Share Posted June 21, 2005 I'm having some problems mounting my disc brake on my new forks. I've never used a disc brake on any kind of push bike before, so I'm not entirely sure if I'm missing something. Basically I can't get the c shaped bar on my BB5 to line up with both the mounting holes on my Brisa forks. The section of the bar that the threads are in is dead straight, so that it should sit parallel to the fork leg. However, the mounts on the forks seem to be shaped to take a c shaped bracket on which the threaded parts bulge slightly from the rest of the bracket (in both directions - they are slightly recessed towards the bolt head and away from the caliper). So... is it advisable to file the bracket down to fit? Or, can I get hold of another bracket somewhere that will fit on these forks? What's the best (and cheapest and quickest) solution to this? Quote Link to comment Share on other sites More sharing options...
CurtisRider Posted June 21, 2005 Report Share Posted June 21, 2005 ermm im kinda confused, but have you tried the adaptor the other way up? cos thats quite a common mistake it seems Quote Link to comment Share on other sites More sharing options...
delusional Posted June 21, 2005 Author Report Share Posted June 21, 2005 ermm im kinda confused, but have you tried the adaptor the other way up? cos thats quite a common mistake it seems Yeah, sorry it's hard to explain. I've tried the adaptor both ways up, to no avail. If you look at this image of a BB7 you can see the raised sections around the threads where the capliper mounts to the fork - my forks look like they're shaped to only take a bracket of a similar-ish shape. By contrast my mounting bracket looks like this: (it looks the same on the other side) Very square, so the shaped bits of the fork get in it's way, and I can't get both threads lined up with both holes in the fork at the same time. On top of that, it looks like even if I could get them both lined up the caliper would be too high to make decent contact with the rotor! Quote Link to comment Share on other sites More sharing options...
dave33 Posted June 22, 2005 Report Share Posted June 22, 2005 ok from what i can understand to be your problem is that the two shoulders where the bolt holes are are hitting the fork leg so that the holes arnt lined up. if thats the case file some material away as this is about the only thing you can do, take it easy though as you dont want to remove to much and weaken the material good luck :) Quote Link to comment Share on other sites More sharing options...
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