Topic: 1978 Honda CB550 Frame (front end neck stem dimensions)

[reese]

Hi - I just bought a 1978 Honda CB550 and looking to see if anyone has these dimensions H1, H2, and H3, see attachment. My bike is not assembled and having difficulty finding this info online. If you know a website that has this info posted, please share the link.

- Dimensions that I'm looking for H1, H2, H3

Thanks

[Scott S]

 Are you looking for steering bearings?

https://www.allballsracing.com/22-1011.html

 And according to their fork conversion tool, the bearings/races are:

 TOP
I.D. 30
O.D. 48.5
Width 15

BOTTOM
I.D. 30
O.D. 50
Width 14.25

https://www.allballsracing.com/forkconversion

[Scott S]

 And H3 is 6 5/8".

[MessnerMoto]

Actually what is reese asking for is differance between cb750 and cb500 stem length... as precisely as possible

[Scott S]

Actually what is reese asking for is differance between cb750 and cb500 stem length... as precisely as possible

 That isn't mentioned anywhere in the original post.

[MessnerMoto]

Actually what is reese asking for is differance between cb750 and cb500 stem length... as precisely as possible

550 stem is .780 shorter than 750

thx!