Brake hose/cable routing for inverted front forks?

smorgasbord

Well-Known Member
Region
USA
Here's how non-inverted front forks deal with the brake hose:
NonInverted.jpg


Note that the hose/cable is attached at the top of the piece that is attached to the wheel. So as the fork compresses and expands, the portion of the hose above that attachment point bends to accomodate.


Here's what it looks like on an inverted fork, like the Wren:
Inverted.jpg


You'll notice that the hose/cable is attached at the piece above - that piece doesn't move with the wheels. But, as the wheels move up towards the handlebars under compression, the hose will bend between that attachment point and the caliper. In my case, it often bends towards the wheel, and sometimes far enough that the spokes hit it!

As you can see, I've moved the attachment point to the outside of the fork housing, but that doesn't necessarily help. I'm wondering if I need to "train" the hose in some way, or take advantage of the way it bends and re-attach it to the caliper so that its tendency is to bend away.

Any other ideas? I can't believe I'm the first to run into this.

TIA
 
In my case, it often bends towards the wheel, and sometimes far enough that the spokes hit it!

This can be quite dangerous if you are doing MTB'ing..
Haibike had a Magura Boltron inverted fork and the cable had slack above the contact point. If you can do this, it might resolve your problem.

See pics here:


1585353816015.png
 
Haibike had a Magura Boltron inverted fork and the cable had slack above the contact point. If you can do this, it might resolve your problem.

Well, the slack may be above the contact point, but nothing above the contact/attachment point will change as the fork compresses. But, what this might do is that by having more cable below the contact point, when the fork compresses then the distance isn't compressing as much as a percentage of uncompressed length, so it wouldn't bend as far.

I'll give it a shot.
 
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