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jambo
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VBMWMO #9208
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Hello all,

My new R69S came with a 0,715 speedometer. After looking in the Barrington book they do not list one of these as an option but I found it listed on many sites as a R69S correct ratio. Any info here other than oversight why it may not be listed in the Barrington manual?

Just want to make sure its right before I spend $$'s to get it rebuilt.

Thanks!!

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James W.
1967 R69S, 1966 R50/2, 1966 R27, 1963 R27 and 2018 R1200GS

schrader7032
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VBMWMO #7032
San Antonio, TX
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I've not seen 0.715 in

I've not seen 0.715 in literature I have. I see 0.75 which is the kilometer version and on the MPH side the number would be 1.2 for the R69S. That would be for a final drive ratio of 25:8.

Where have you seen that listed on the internet?

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

jambo
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VBMWMO #9208
Long Island
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Found them here

This link on our site: http://www.vintagebmw.org/v7/node/13206 (see the speedo pic)

And I googled "bmw r69s .715" and I found a bunch of them. Some on ebay and others in other areas.

Any help is appreciated!

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James W.
1967 R69S, 1966 R50/2, 1966 R27, 1963 R27 and 2018 R1200GS

schrader7032
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VBMWMO #7032
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In the end, any speedometer

In the end, any speedometer will work...it just has to match the final drive ratio otherwise the indicated speeds will be wrong.

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

schrader7032
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This is about the only other

This is about the only other site that I've seen that has info on speedometers and final drives:

http://bmwvmca.org/joomla/index.php?option=com_content&task=view&id=118&...

No 0.715 listed, though.

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

The Plunger
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I looked through the manuals

I looked through the manuals on John's Beemer site and no model is shown with .715 ratio for Kph speedos. Your's is in Kph, and with BMW logo? Possibly, the R60 with a ratio of .70 actually used a .715?

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Brian
'52 R67/2
'63 R69 S
In what space, sir. In what space!?

jambo
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Tachometer

I spoke to the previous (and only other owner) and he said that is the original. No reason for me not to believe it. The date on the back of it proper as well.

Intersting!

Thanks for all the research and digging. I am planning to restore it with that speedometer until someone tells me otherwise! Smile

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James W.
1967 R69S, 1966 R50/2, 1966 R27, 1963 R27 and 2018 R1200GS

Beemer100
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Hi James, you're right, you

Hi James,

you're right, you find some 0,715 speedos for the R69S ... but you don't find them in any document which lists VDO speedos for Beemers. I found a site where the say that the 0,715 works with a 32:10 rear drive ...

hope this helps
Klaus

schrader7032
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VBMWMO #7032
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Klaus - Can you tell us what

Klaus -

Can you tell us what that site is?

Thanks...

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

The Plunger
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32:10?

Don't know of any final drive with that ratio. As I said, the 32:11 of the R60 is really close. Are these available speedos the cheap re-pops?

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Brian
'52 R67/2
'63 R69 S
In what space, sir. In what space!?

jambo
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VBMWMO #9208
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Not sure if it’s s ratio

Not sure if it’s s ratio thing. Snowbum has on his site that for some countries they changed the W and that it was more for compliance. The fact that the PO never changed it and the date on the back is correct and I have found pictures of others makes me feel it is authentic. It’s at the gauge rebuilder now and I asked him to tell me what he thinks about it. Will update the the thread when I get more info.

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James W.
1967 R69S, 1966 R50/2, 1966 R27, 1963 R27 and 2018 R1200GS

schrader7032
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It's important that the final

It's important that the final drive ratio and the ratio associated with the speedometer match, otherwise readings of speed will not be correct.

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

Beemer100
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Kurt, I think I got it from

Kurt, I think I got it from the Stemmler site in Germany. It doesn't say, however, the speedo is for an R69S. I think there was also a W=715 for the /5 Beemers.

The safest way is to check which Wegezahl the rear drive has and then match the speedometer accordingly. Otherwise, as Kurt said, you won't be happy. There are several methods to do that. I think I remember the easiest way is to push the bike exact 10m and count the numbers of turns of the speedometer cable (before that you put a tape on the square end of the cable ... makes counting easier). Means, a W=715 results in 715 turns of the cable during 1km (7.15 turns in 10m)

Check http://www.oldtimer-tacho-werkstatt.de/tacho-wissen/ (maybe Google translate helps, but it essentially says what I mentioned above)

hope that helps
Klaus

schrader7032
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VBMWMO #7032
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Klaus - I did find a page in

Klaus -

I did find a page in the Stemler catalog that gives a few W numbers versus final drive ratios...page 68:

http://www.motorrad-stemler.de/dcenter/down/r%2050%20bis%20r%2069%20s.pdf

No 0.715 is listed but 0.75 is listed for the R69S solo along with a 25:8 final drive. Also 0.77 coupled with 27:8.

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

Beemer100
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Sorry Kurt, I meant

Sorry Kurt,

I meant Uli's.

https://www.ulismotorradladen.de/artikeldetails/Tacho-VDO-20-200-kmh-W07...

as said, it doesn't mention what bike this speedo is for.

Kempmann links the .715 speedo to the 75/5 Beemer, but I guess this one would look quite different (http://www.kempmann.com/Neuteile/Instrumente/instrumente.html)

Klaus

schrader7032
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VBMWMO #7032
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Klaus - I've not seen 0.715

Klaus -

I've not seen 0.715 listed for the R75/5 because mostly in the US, it would be in MPH which would be more like 1.15 and the final drive might have been 34/11. Snowbum has a page of gear ratios, etc., however the 0.715 (or 1.15) are not listed...the closest is a 0.711 for some mid 1970s bikes.

http://bmwmotorcycletech.info/ringgears.htm

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

jambo
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Long Island
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Update

Just wanted to update you all.

Joe from Joes Speedometer says it’s an original VDO guage that was never opened. He saved the date stamping on it as well while cleaning. So, it’s not a reproduction and there is no reason for me to think it’s not the original one that came on the motorcycle. I have no idea why it’s a .715 ratio but at this point it’s getting restored and going back on.

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James W.
1967 R69S, 1966 R50/2, 1966 R27, 1963 R27 and 2018 R1200GS

schrader7032
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Sounds great! BTW did you

Sounds great! BTW did you ever post what final drive ratio you have? Does the speedo shop have that info to ensure that the readings will be close to accurate?

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

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