Topic: question on MC bore size

[lrutt]

I have an old Honda MC, round type. I know it's mid to early 70's, likely a 500 or 550 but could be a 750. I need to put a kit in it though and need to know exactly what kit to put in.

Is there a reference for bore size for the difference bikes? I assume the 500 and 550 would likely be the same but expect the 750 may be larger. If anyone could provide some feedback I can get this rebuilt and get it to my son who is in desparate need of an MC.

Thanks in advance.

[tank410]

The service manuals for the 500/550s and the 750s with single disc came with 14mm MC.
I can find anything on the size of the dual disc 750s.

[lrutt]

Ok, didn't realize both 500 and 750 had same size mc. so I'm golden for ordering an MC kit for it then.

Thanks a lot for the feedback.

[bryanj]

In fact all the single disc cylinders from the 70's are the same size