Sure I'll remember. Famous last words. OK. I know 'A' mounts to the lower triple tree and I know 'C' mounts with the front fender. Where does 'B' mount? There are 2 tapped holes on the bottom of the lower triple tree, but I think they are where the horn mounts and has nothing to do with the brake line. So where does 'B' mount?
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I was born with nothing and still have most of it left.
on the 750 the two tapped holes on bottom of lower tree is where the horn and also the brake line junction box attach. i see the 550 doesnt have a junction box, so i dont know if that is any help.
B mounts to the right hand side fork. There is a triangle looking mounting tab that loop attaches to behind the fender ( not pictured ). The A end attaches to the mc and of course the C end mounts to the right side caliper. The piece in the A box attaches to the pinch bolt on the right hand side of the triple tree. That little B bracket needs to be on the end where C is highlighted held by the triangle piece. The cruizin image lines don't allow you to make an exact mock up of the original lines as far as the rubber grommets. You have to do some reconfiguring. Your old line looks fantastic. It doesn't even have rust on the fittings. If I could post pics on here of an example, I would. But, obviously I can't. I'd like to know what you are doing that allows you to all of the time, lol !