Cheapest disc conversion on steel frame?

[B3]

This is what I did for my son's Palomar. This cost me next to nothing, I had the bracket laser cut from 5mm plate then TIG welded it on.

 

[Alex Creasey]

Is the Chaser one suggested above as fussy as to hubs you can use like the 2b therapy conversion?

Cheers.

 

[Deveron53]

This is what I did for my son's Palomar. This cost me next to nothing, I had the bracket laser cut from 5mm plate then TIG welded it on.

Just what I'm after, you should add disc mounts to your 'Locost' site, I'd buy one! I can get tig welding done by a mechanic friend.

 

[JohnH]

This is what I did for my son's Palomar. This cost me next to nothing, I had the bracket laser cut from 5mm plate then TIG welded it on.

How hard was it to position the bracket correctly? Did you calculate the position and mark it out or did you just tack it on a few times until you got it in the right place?

 

[jamabikes]

the best way (unless you have a jig of course) is to use an old disc hub, disc and calliper to line up the mount.

 

[JohnH]

the best way (unless you have a jig of course) is to use an old disc hub, disc and calliper to line up the mount.

I think you're right JB -- not only do you have to make sure that the caliper lines up with the disc (left/right alignment), you also have to get the disc into the caliper at the correct depth (up/down alignment).

So yeah, it's probably best to put the pieces together and work it out from there...

 

[JohnH]

How hard was it to position the bracket correctly? Did you calculate the position and mark it out or did you just tack it on a few times until you got it in the right place?

I've just stumbled upon a thread that gives a step-by-step guide to doing this (with photos):
http://www.retrobike.co.uk/forum/viewto ... c&start=45

One of the highlights of the thread is the link to an American fabricator who makes ready-to-weld disk mount brackets:
http://www.paragonmachineworks.com/stor ... 64122.aspx