Topic: 750 wheels on a 550K? Lester 19 front/18 rear

[RM81]

So I found a set of Lester Mags that were for a 750 with rear disc.  I'd like to fit them on my 75 550K.  Can anyone give me any tips on doing this?  After a little bit of searching, I'm thinking I'll have to find a swingarm from a 750 that has mounts for the rear disc and caliper and go from there.  Can I use my 550 swing arm?  Will there be alignment issues if I use a different swingarm?  I know the bearings are different.  Here are the wheels I found.  I appreciate any help or tips you guys can give.  The numbers on the wheels are Front T19x2.15 TL DOT 52677 Rear T18X2.15 TL DOT 52577.

[754]

They must be from 75 or 76 750 F.
 Front will fit.. rear can.. with a lot of work.. wider swingarm, offset sprocket, or thinned carrier.. stuff like that..

[RM81]

Didn't the 75-76 use drums in the rear?  I know my 78 has a rear disc.  I thought the discs were added 77-78.  I'm thinking of trying to fit a 77-78f swingarm into my 75 550k frame.  As long as the swingarm fits the frame width, the only other concerns would be alignment and linkage from the pedal the rear MC.  Does this sound correct?  I hate to drop a bunch of money into parts that I can't even use if it won't work.

[sinister902]

I grabbed a disc brake CB750 rear end off a bike in the junkyard, but had no idea what year it was. It all fit on my cb550 with some minor adjustments/mods. my whole bike is customized though so it might be harder to get to work on a factory/stock 550. If you decide to abandon the project, PM me if you'd be willing to sell the lesters, I would be interested.