Topic: cb750 "K" vs "F" Triple Tree

[brycegp]

I have one too...  If this is what you are looking for...

[icmock]

I have a bracket from a 78F somewhere, if that will help you out. I won't go looking for it in all my parts boxes unless you need it, so let me know.

If the bracket off your '78f has the mounting bolts 6" apart center to center, than that would def work.
Thanks

[mrbreeze]

I might be wrong about this, so double check the info...but I believe that you can not use the top triple tree from 76 or earlier with a bottom of a 77/78.  Whether it's a K or F doesn't matter. So make sure you both have later triple trees before you swap.  I'm pretty sure this is right since cycle x's website saw the top alone can only be used on 69-76's.  Obviously if you by the complete triple tree, it works on any year bike.

So BryceGP, what exact top are you looking for?  A 78K or F?  I ask because from your gauge picture that looks like a 78 K, but you keep saying you are looking for an F.  Can you snap a pic of the lower triple tree?

Sharpinkski, you're looking for the top to a 76K then right? 

I have some triple trees in my shop, if your swap won't work, I might have a tree for both of you.  I definitely have 77/78 K and F triple trees, not so sure about the earlier model, but I might.

So I could put a 77-78 triple on a 71 frame as long as it is complete (both lower and upper) ? If so....the only difference would be the offset?

[754]

 The offset, and the steering stops are missing on lower tree.
 F uses a dual caliper log manifold for brake lines that fits on studs comimhng out of lower tree.
 K models, the 77 will fit a 76 and down style brake lines with pressure switch mounted to lower tree, the 78K does not have it.

[mrbreeze]

Good info 754. I don't care about the brake hose fittings but what would you have to do to have steering stops?? Mebbe some welding?

[scottly]

The K7 lower has the stops.

[754]

Actually I screwed up K and F has steering stops I believe.. but LOCK changed to the top.
 HOWEVER late trees with early tank, the forks will probably hit the tank..you can pull tank back a bit, or weld build-up the stops