77' CB550 - 06' R6 Front End Swap

jmagno316

New Member
Found a wrecked 2006 Yamaha R6 50th anniversary about 2 hours away. Wondering if I can swap the front end with my 1977 Honda CB550K. I've heard of guys doing a swap with an 03-05 R6. Any help at all or any info would be greatly appreciated. I plan on driving up there this afternoon. I've already got a price sorted out for the entire front end (wheel, rotors, calipers, forks, triple trees, controls, speedo, everything!
 

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make sure the forks aren't bent. You can probably get bearings from allballsracing.com to get the front end on the cb, but the triple tree offset will be incorrect and negatively affect geometry and steering.....will make the bike twitchy and gradually more unstable with speed. Also the wheel obviously won't match and the front tire will be wider than your stock cb rear. You(depending on skills and tools) or a machine shop could make a new axle to mount the stock CB front wheel in the R6 forks, and then you'd need rotor adapters to get the brakes to mount up....all in all, lots of work for it to be an "upgrade" rather than a quick and dirty decoration.
 
focusinprogress said:
make sure the forks aren't bent. You can probably get bearings from allballsracing.com to get the front end on the cb, but the triple tree offset will be incorrect and negatively affect geometry and steering.....will make the bike twitchy and gradually more unstable with speed. Also the wheel obviously won't match and the front tire will be wider than your stock cb rear. You(depending on skills and tools) or a machine shop could make a new axle to mount the stock CB front wheel in the R6 forks, and then you'd need rotor adapters to get the brakes to mount up....all in all, lots of work for it to be an "upgrade" rather than a quick and dirty decoration.
Well said.
 
DohcBikes said:
Well said.

I appreciate that. I'm all for the inverted front end swaps, but only when done properly. I've done it on around two dozen bikes, but I do the actual math on rake and trail and more often than not I try to emulate stock geometry for the bike as close as possible. I even did two of the same bike, one where I made custom offset triples and one where I just did the allballs bearings with the sportbike triple trees, and rode them back to back for comparison. suffice it to say, I'll keep making triple trees for my swaps.
 
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