Topic: F series Rear brake assembly pics ?

[walkingchaos]

hey guys,
     So  i think im going to try and do the conversion to a rear disk brake since im swapping over to the F frame. I have found a 16" rear wheel that i think i can use to do the conversion. Does anyone have an F series bike they could send me detailed pictures of so i can see what im getting into ? Thanks guys.

[kghost]

I have a K frame with F front and rear....I think theres a pic in my gallery.....

Spoke F or comstar F?

[walkingchaos]

the wheel i found for the rear i believe is a spoke F. its a 16" wheel

[super pasty white guy]

Besides the wheel, you need the swingarm as well, or you'll (probably) need to weld in a mount for the brake stay.

I did nearly the same thing on my bike-  the PO had a k rear on an F frame and I put everything back to stock.  I went the route of buying everything at once (wheel, arm, caliper/master, pedal) and just swapping it out.

What exactly do you want pictures of?

spwg

[walkingchaos]

right now im just trying to judge whats going to be the best route. Im going to use the F frame. Im trying to figure if i should use the K wheel/swing arm/drum brake, and modify the frame to accept the pedal. Or if i should find and buy all the F frame stuff to do a rear disk conversion.

[Shenanigans]

I am not trying to derail, but if a 750F swing arm will fit into a 750K frame, and a 750K frame swing arm will fit into a 550, why cant I throw a 750F rear swing arm in my 550? It would be a lot easier than machining and welding the 550 swingarm for a rear disk and I could keep it looking more period correct. (The drum brake is sufficient, but its not sufficiently cool...)

[walkingchaos]

hehe i think it would work but you def dont want to take my word for it here   Im still trying to figure out if my F code frame with a K code arm/brake will work

[Shenanigans]

I have see people claim it but nothing really solid, if it is true I am suprised that no one has done it yet. I remember people saying that the 750's swing arm would fit on the 550 but that is was slightly shorter in lenght or something.

[super pasty white guy]

Well, I know for sure that you can put a 750k drum/swingarm on the 750f (at least on a 76).  I'm pretty sure that no frame modification is necessary, but a brake lever height adjustment stop would be nice.  If you just slap it on there it hits the footpeg for a stop (which worked fine, but not the best).

spwg

[walkingchaos]

thank you, that is def what i wanted to hear. how did you attach the K brake pedal on the F frame?

[super pasty white guy]

I can't tell you what i did, just what I undid.  I pulled off all the k stuff and put on the F rear end.  both brake pedals went in the same.  Have you studied the parts diagrams?  That'll give you a pretty good idea what's going on for each bike.  I think I still have the whole pedal/arm and aluminum mount sitting on my parts shelf.  I can send a picture for you to compare or send the whole thing your direction.  It's just cluttering up my already cluttered life.

http://www.cmsnl.com/honda-cb750f-750-super-sport-76-us_model490/partslist/F++09.html

[walkingchaos]

oh man that would be a huge help. If you feel like unloading that stuff id be alot closer to sorting out my brake issue Ill drop ya  a PM   THANK YOU!