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Speedo change: can a kilometre speedo be changed to a MPH

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panster
Posts: 58
Joined: Fri Mar 19, 2004 2:07 am

Speedo change: can a kilometre speedo be changed to a MPH

#1

Post by panster » Thu Jun 02, 2005 1:18 am

Hi,
can a '50s kilometre speedo be changed to a MPH ratio, I presume just the trip and odo gears would be different,as the speedo
needle would turn at the same rate for either. Anyone know a source for the parts? I'm assembling the speedo from different parts and wondered if I could do the ratio change myself.
Thanks.
J.



pthomas
Posts: 2
Joined: Sat Jul 14, 2007 9:06 pm

Re: Speedo change

#2

Post by pthomas » Thu Jun 02, 2005 1:38 am

Hey panster,
Its my understanding that the inners of both the kph and mph speedos are the same. When the needle points straight up it's 65 mph. You just need a MPH number face and a way to put it on. Good luck.

51Hog
Posts: 664
Joined: Fri May 20, 2005 7:29 pm
Bikes: 1951 Fl
Location: Wasilla, Alaska

Re: Speedo change

#3

Post by 51Hog » Thu Jun 02, 2005 5:13 am

I believe that the gear ratio will be different in the KPH vs. the MPH. 1.6 K = 1 Mile approx.
I Don't think that just changing the face would work.
IMHO

Sometimes speedo parts show up on eBay

Ente
Posts: 54
Joined: Wed May 25, 2005 2:33 pm
Location: Stockholm-Sweden
Contact:

Re: Speedo change

#4

Post by Ente » Thu Jun 02, 2005 8:46 am

Right 51Hog...
You can maybe get the speedo showing the right speed, but the trip will still show wrong numbers.. But you can live with that..

panster
Posts: 58
Joined: Fri Mar 19, 2004 2:07 am

Re: Speedo change

#5

Post by panster » Thu Jun 02, 2005 10:10 pm

Thanks for the replies guys,
I did buy the mechanism on ebay but it wasn't advertised as kilo.
I've got an MPH face, I guess I'll have to live with the right speed and
a trip that reads 1.6 over.
Still, it will look like I get great gas mileage.
J.

Perry Ruiter
Posts: 100
Joined: Mon Jan 26, 2009 9:29 am
Location: Canada

Re: Speedo change

#6

Post by Perry Ruiter » Mon Jun 13, 2005 2:24 am

The vertical gear shaft and the odometer frame need to be exchanged to convert between kilo and miles. Email me direct with the details of the year you're doing (perry@ruiter.ca) and I can probably help with the needed parts ... Perry

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