Topic: Speedometer question - which bike is this from?

[ksmith0034]

Does anyone know what bike this is from?

[ksmith0034]

I am guessing it's from a CB500 or 550 based on the "L" and the 120mph reading.  Does that sound right?  At any rate, I don't think it's from a CB750, do you?

[754]

 Diameter , please..

[ksmith0034]

Looks like the diameter is 3 1/2" and the distance between the cutouts is 1" from top to top.

[apex_seeking]

I may not be much help here but I can say that they are not from a 74 or 75 550. I would say a 550 would be the bike, just not those years.

[ksmith0034]

this is quite a mystery...  the thing throwing me is the 120 mph on the speedo.  I don't think any 750s had 120 on the speedometer did they?

[apex_seeking]

My 550 faces go to 120 and are the large (3 1/2") size as well but they don't go in increments of twenty.

[ksmith0034]

I now have confirmation that this is a 550 gauge - not sure of the year.  I'm now assuming if I use them on my CB750 the tach and speedo won't be accurate.  Is that trus?