Andrew that is some grade-A first hand experience thanks so much for the explanations.
Is there room in there for a typical hex-head screw, to be used with an open end wrench?
You’ve probably already explored this, but a search for “stubby short arm 5mm allen” brings up some options too. Or just cut down one you already own.
Somewhere out there is a bicycle multi-tool that has L-shaped allen wrenches, but damned if I can remember what brand it was.[/quote]
Thanks for the tips, I will take a look
I forgot to mention earlier that I really exacerbated the issue by deciding to have the rear light barrel braze-on located halfway down the seatstay where the allen T-handle needs to rotate.
Elephant National Forest Explorer Modifications by Andrew Squirrel, on Flickr
Starting to realize I’m building an obsolete disc bike with IS mounts and QR skewers.
If I had half a brain and better knowledge of disc brake tech I may have changed course earlier.
Also heard back from Hope, must have missed that tidbit on their website (maybe they added it after my first reading?). I incorrectly assumed all postmount calipers were backwards compatible with all IS mount frames.
Thanks for your email – unfortunately as mentioned on the Hope RX4 product page the RX4 is not designed for IS mounts, partly due to the fitment issues you have experienced. The only way the RX4 will work with IS is using our MOUNT F which is a 180mm front minimum, before using this mount however you should check with your fork manufacturer that this isn’t too large, for both fitment and safety.
As for alignment issues until a correct mount is fitted I cannot comment, but as stated the caliper is POST mount only.
Sorry I can’t be of any more help at this time.[/quote]