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Cb750 K5 rear disc conversion ??

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bluemouse1006:
Hi

Anyone ever converted their K5 SOHC rear brake into a disc , mine has a F2 front end with front drilled discs and looks great !!
I have been lucky enough to get hold of a full rear end including rear wheel with rear disc and calliper etc and swing arm . When I offer the swing arm up the alloy bracket looks like it might catch the rear foot peg hangers and the tube the rear Brake pin goes through . Other than that it looks like it might fit although I'm missing a rear brake master and reservoir if any out there has a spare ?
It seems that I might have to chop those pieces off but don't want to wreck the frame if it's not going to fit .
I can add photos if any one has any ideas

Thanks

Amos  :D

Waggles:
Not done it, and don't know anyone who has.

Think the F1/2 swing arm is a bit longer than the Ks, might cause an issue if its by a lot, ( rear chain length, mudguard etc? ) also not sure but I think the swing arm bearing differs a bit too so I would check all out carefully before you start cutting stuff.

Pics would help .....

bluemouse1006:
Waggles

Yes your right ,it's a touch wider as well ,the pillion foot peg bracket on the frame gets in the way,  which will need chopping off and frame cleaning up so it looks like it was never there .
Also the rear brake pedal tube on the frame gets in the way so again will need cutting
I'm leaving it till the winter so I can strip it all out and test fit every thing and not miss out on this lovely weather we are all having ha ha. The side pedal frames will all need cleaning and chroming.
The exhaust might be a problem as I think it's too close to the pedal frame when offered up

I'll keep u all updated with the progress over the next few months and I'll see if it's feasible at a reasonable cost

I'll add some photos when I start the process

Thanks
Amos  :)

Waggles:
Yes exhaust could be a problem but you could fit the studs to the head instead of the tubes and an F1 4 into 1 might then fit, then that might involve re jetting a bit? although the four pipes are much nicer the 4 into 1 is probably a bit more efficient ( something about one cylinders exaust pulse helping to suck the next and so on )

bluemouse1006:
Hi  ;)

Thought id put some photos on to see what you all think and see if you think it going to be worth all the hassle?





Thanks Amos

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