Horizontal drop outs and disc brakes

Home of daft questions and helpful answers.
User avatar
Godders1
Posts: 713
Joined: Wed Jul 21, 2010 19:31 pm

Horizontal drop outs and disc brakes

Postby Godders1 » Mon Sep 10, 2012 12:51 pm

The chain on my pompetamine was looking a bit saggy so I pulled the wheel back slightly to take out the slack but this means the disc rotor has been pulled a small way out of the brake calliper. There’s still a good 4/5ths of brake pad on rotor but is there likely to be any issue with this? It felt OK on the ride to work this morning.

I guess the chain might have worn a bit hence the need to increase tension but replacing a static chain seems like overkill at this stage (it’s probably only done about 2k miles).

User avatar
The Rookie
Posts: 23079
Joined: Thu Apr 30, 2009 09:29 am

Re: Horizontal drop outs and disc brakes

Postby The Rookie » Tue Sep 11, 2012 01:27 am

The only horizonal dropout bike frame I've worked on with discs (a Scott) had slotted disc tabs so you could align the calliper with the disc location, have on-one neglected that or have you not spotted it?

If they haven't thought of that, you could still loosen all the mountings and move it all back, may gain an mm or two.

User avatar
Godders1
Posts: 713
Joined: Wed Jul 21, 2010 19:31 pm

Re: Horizontal drop outs and disc brakes

Postby Godders1 » Tue Sep 11, 2012 12:35 pm

Sorry, I'm struggling to understand what you mean by "slotted disc tabs". Are these a feature of the rotor or the caliper?

On inspection the mounting doesn't look like it will allow for any adjustment of the caliper position.

The brakes are Avid BB7, a decent pic of the mounting from google images:

Image

User avatar
Godders1
Posts: 713
Joined: Wed Jul 21, 2010 19:31 pm

Re: Horizontal drop outs and disc brakes

Postby Godders1 » Tue Sep 11, 2012 18:20 pm

Oh you mean slotted disc tags like this? :oops:

Image

I'm such a tit sometimes. Image


Return to “The Workshop.”

Who is online

Users browsing this forum: drlodge and 2 guests