Thanks for your replies everyone.


@fietsbob: it adds all of the weight to the lower part of the fork; it connects to the bridge part.


@robow: the longer skewer is there so that the rack isn't touching off the bottom of the fork tube, but rather transferring all of the pressure from the QR clamp to the dropout where it is normally applied when using a regular QR setup. The rack (as mounted in my pictures) is no lower than it would be mounted on a standard fork with braze-ons for this purpose


@mtnbud: I could do that, but I think there are two problems. If I tighten the U-Bolts too much, I'm afraid that I might damage the fork tubes by compression which cannot be undone. Do you think theres much likelihood of this happening? The more realistic problem is that if the rack slips downwards at all it will jam the disc brake rotor - likely causing an injury! The risk here could be minimized by using inner tube on the contact points of the U Bolt but I think the other setup is a safer option to be honest.


@fietsbob: what two side plates do you mean? As in my first post I'm trying to keep costs down - a Kona P2 or something like that would cost upwards of 100 euros, as would a commercial rack - I just don't have the money to spend on something like that at the moment I'm afraid.


@OndrejP_SK: Thanks very much for your post. I guess what I wrote earlier about the rack slipping downwards is unlikely after all! Is there rubber or something on the inside of the U Bolts to further secure it?


@seeker333: The hoop-less design could be remedied by using some extra cable ties as well as the existing U bolt that I have on there. There would be a rattling sound if the U-Bolt so much as loosened, and I would use locking nuts on it anyway.




Lots of recommendations for the OMM Sherpa here, but upon closer inspection it only works with V-Brake mounts anyway; I have disc brakes only. Upon googling it again, it is pretty much the exact same design as what I am suggesting, in terms of the QR system. There is a QR skewer, a spacer as I suggested above (the cylindrical silver pieces at the bottom), and a mounting point which connects to the V-Brake blocks above. The only difference is that I would use u-bolts around the fork tubes.


I think I'll give it a whirl - if OMM trusts a QR skewer enough to certify it to hold 40lbs, I'm sure I will be fine with the 10lbs or so that I intend on mounting there!


Thank for all the replies