Frankenfe
Coast to Coast
Re: So you bought a CM400 / CB400T, now what...(46+ Build Links!)
DISCLAIMER: This is one mans Opinion /Understanding and should be Confirmed with as much Google as possible.
I have understood that basically all Honda speedometers cab be interchanged as they all work on the the same gear ratio mechnics. Additionally every Mecahnical Speedo cable I have seen 70's -80's Hondas had the same basic ends. And the designs of drive units are very similar. This also seems to be supported by the idea and practice of Honda Engineers to use as many common parts and engineering as possible.
So I would suspect that any era similar OEM speedo or aftermarket Speedo made for a model from that era should work. I think you may be overthinking it.
All this said I am about to test this idea to it's outer bounderies a Mid 60's CB77 Speedo driven by a 1979 CM400T Drive Unit.
DISCLAIMER: This is one mans Opinion /Understanding and should be Confirmed with as much Google as possible.
I have understood that basically all Honda speedometers cab be interchanged as they all work on the the same gear ratio mechnics. Additionally every Mecahnical Speedo cable I have seen 70's -80's Hondas had the same basic ends. And the designs of drive units are very similar. This also seems to be supported by the idea and practice of Honda Engineers to use as many common parts and engineering as possible.
So I would suspect that any era similar OEM speedo or aftermarket Speedo made for a model from that era should work. I think you may be overthinking it.
All this said I am about to test this idea to it's outer bounderies a Mid 60's CB77 Speedo driven by a 1979 CM400T Drive Unit.