Making rear disc tabs - how easy??

[mattbrown]

there is also this i could try, a bit more professional

http://www.ison-distribution.com/ison/e ... rt=BSDNVPS

 

[stubb]

that looks a bit like the way we used to bodge AD990.s onto bmx frames before they were made with pegs on them, if they fit as they are now cant you run some weld round the bits you have on there, will look a bit back yard but if you have enough adjustment in the brakes to get on the rims it could work

 

[mattbrown]

dont wanna go down the welding route, just so its easier to remove, and not make the frame manky in any way

 

[ASHLEYF]

i would proceed with caution when adapting a frame that was not originally designed to run with discs. I had a 2002 stumpjumper that had disc mounts and that cracked where mounted to the seat stay. Not a major issue as the frame was replaced by Specialized with a new 2007 frame, this frame and newer generations have got a gusset reinforced bit between the seat and chain stay to prevent twist and then cracking. I think that it was a common problem on these frames. Now like a say not a major problem as i got a new frame and effectively a service and some new parts. However i did love my old frame and the colour combo was wicked. If you have a retro frame that is irreplaceable or difficult to find it might be more upsetting

 

[stevet1]

you used to be able to buy a brake booster that jubilee clipped onto yourframe and has the brake mounts as part of the booster. I can't remember who made them, I might have one in my spare parts box. Would be stronger I think than jubilee clipping just the brake mounts and the spacing would be correct.

 

[dyna-ti]

i would proceed with caution when adapting a frame that was not originally designed to run with discs.

155mm rotor-8 years -no problems-worked flawlessly-'98 clockwork frame

And this was the kit that hope supplied,a little triangular bracket and a jubilee clip to attach it to the stay,seems they think theres no issues using a stay to support their calliper
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Be aware ,its a long and financially difficult road you are setting out upon ,the way will be hard and the obstacles many,but with perseverance and a little luck ,you'll come through victorious .


Only to find no one here appreciates your efforts and will say you've ruined the look of the frame

 

[the great roberto]

A bit of an old chestnut this one, and I'd also like a few more views.

I've bolted on an A2Z thingy onto the rear of my Zaskar along with a 160mm centerlock disk. All it awaits is the Hope caliper and lever.

My XTR V brake works well on the rear in the dry.Add rain and mud and then it's a different matter.Hence the move to a rear disk.

Whilst I can see peoples reservations about loading the rear of a frame that was not specifically designed to take load there, I can't believe that it is likely to fail.
Have a look at the rear IS mounts on most bikes and there appears to be no additional material /engineering above that for a V/canti brake set up.In fact he seat stays on most bikes are braced to allow for the clamping force exerted by V/canti's.See the pic of red zaskar for a better description.

 

[stubb]

dont whatever you do use the hope stay bar system that came out long ago, it used a torsion bar linked to the canti point, snapped the left seat stay on my trailstar .. they did replace it with a translucant red with disc mounts though so i didnt mind too much

 

[mikesnowdon]

Back to the subject of making your own....

Looking at the Matt's frame pic's I don't think it would be hard to fabricate something like this:

 

[dyna-ti]

Back to the subject of making your own....

Looking at the Matt's frame pic's I don't think it would be hard to fabricate something like this:

It looks like it was made him