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#711975 - 10/19/17 12:35 pm 69 tr25w speedo question  
Joined: Dec 2005
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britcyclenut Offline
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britcyclenut  Offline
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new jersey
I have a 1969 tr25w and the parts book calls for a ssm 2001/02 speedo. The bike is not a ss model and has the tach blanked off on the motor. The speedo is missing but a single rubber gauge mount is on the top Tree. The rubber mount is for the larger gauges.

My question is: is there another speedo for this model or did someone change the mount to accommodate the bigger speedo? Or did it only come with a tach?


80 FLH
66 Triton
71 442
67 atlas
71 TR6R
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#711977 - 10/19/17 1:06 pm Re: 69 tr25w speedo question [Re: britcyclenut]  
Joined: Jun 2002
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Stuart Online content
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Stuart  Online Content
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Scotland
Hi,

Originally Posted by britcyclenut
ssm 2001/02 speedo. The bike is not a ss

Completely unconnected. "SSM" is the Smiths prefix for all speedo. part numbers; "RSM" is the prefix for all tachos.

If you enter "smiths ssm 2001/02" into your preferred internet search engine, it should return links to pictures of what you're looking for. It's a 0-100 speedo., appears to be a smaller diameter than speedos. and tachos. on bigger bikes and have attached mounting brackets.

Originally Posted by britcyclenut
single rubber gauge mount is on the top Tree. The rubber mount is for the larger gauges.

The Smiths tacho. number starting with a "3" indicates the same size as found on bigger bikes, and the parts book shows it and the mount are larger than the speedo. and its mount.

Or, as you suggest, a p.o. could've tried one of the more-common larger-diameter speedos.

Originally Posted by britcyclenut
Or did it only come with a tach?

What does the parts book show? In '69, I doubt there were many countries where a road bike could've been sold new without a speedo.?

Hth.

Regards,

#711986 - 10/19/17 2:07 pm Re: 69 tr25w speedo question [Re: britcyclenut]  
Joined: Dec 2004
Posts: 8,882
kommando Online content
kommando  Online Content


Joined: Dec 2004
Posts: 8,882
Scotland
The tacho was a option, suspect is was dealer fit and left the factory with just the speedo as you can buy the kit as NOS today with deep $ pockets.

If the TR25W had the mini speedo then if it failed the most likely replacement would have been to fit the B25/B44 normal sized one as they are more numerous.

#711992 - 10/19/17 2:33 pm Re: 69 tr25w speedo question [Re: britcyclenut]  
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Tridentman  Online Content

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Hi Fred---when you come round on Saturday we can look at the parts lists and you can also see the smaller speedo on my 1971 BSA B25T Victor Trail.

#712001 - 10/19/17 5:32 pm Re: 69 tr25w speedo question [Re: britcyclenut]  
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britcyclenut Offline
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new jersey
Thanks for all the info. I have located a small grey face speedo 2001/02. I just wanted to make sure I was going to purchase the correct item and there wasn't an alternative. The parts book shows both tach and speedo. I do not have the double gauge mount. The mount that is on the bike is for the larger gauge(I believe). I don't know the diameter of the smaller one.

Thanks Richard that would be a great help. Then I can get up close and see the real deal.


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[Linked Image][/URL]


80 FLH
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#712004 - 10/19/17 6:00 pm Re: 69 tr25w speedo question [Re: britcyclenut]  
Joined: Dec 2004
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kommando Online content
kommando  Online Content


Joined: Dec 2004
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Second pic down is the std B25/B44 speedo cup.

#712033 - 10/20/17 3:42 am Re: 69 tr25w speedo question [Re: britcyclenut]  
Joined: Aug 2001
Posts: 1,816
Steve Erickson Online content
Steve Erickson  Online Content


Joined: Aug 2001
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The Northwoods... Michigan
I've paid more attention to TR25W's over the years than I should have... kinda like a vulture flying over a herd of diseased cattle, looking for the one i was going to pick off of. Great affordable parts donors for unit singles projects. And have ended up with a kinda reverse Stockholm Syndrome, am strangely now attracted to the damn things. Poor red-headed stepchild should-have-been, I guess.

Point being, I've never seen a 69 that had the dinky 2001/02 (though it was standard on the 68) on it, always been the bigger bodied 5000 series. Nor have I ever seen a tach on any TR25W.

I would call the spares manual suspect on this point (especially as it was an early model/year publication). I'd enjoy hearing if anyone actually knows differently, this is just my observation...

#712073 - 10/20/17 8:33 pm Re: 69 tr25w speedo question [Re: britcyclenut]  
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britcyclenut Offline
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britcyclenut  Offline
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new jersey
I've never paid attention to them either. I've always had twins. I came across this little gem at oley last year and have learned quite a bit getting her back on the road. I'm also slowly getting addicted to the 250s. I find myself hoping to come across another one that needs a good home.

Would the bigger gauge be the 1970 part# ?

Scratching my head on this one.


80 FLH
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#712115 - 10/21/17 12:48 pm Re: 69 tr25w speedo question [Re: britcyclenut]  
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Steve Erickson Online content
Steve Erickson  Online Content


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The Northwoods... Michigan
As I said, I am not really positive on the speedo application. Don't know what is listed for the 70, but it probably is the black-faced version, which wouldn't be correct for a 69... the 69 should be grey-faced.

#712149 - 10/21/17 7:41 pm Re: 69 tr25w speedo question [Re: Steve Erickson]  
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Stuart Online content
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Stuart  Online Content
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Hi Steve, Fred,

Originally Posted by Steve Erickson
Don't know what is listed for the 70,

http://www.tioc.org/partsbookstriumph/pb-tri-250-1970%2099-0906.pdf. smile

Certainly on Triumphs, black-faced speedos.'n' tachos. weren't actually listed 'til '71 parts books, although they're a well-known '70 mid-year change.

The above parts book was printed with tacho. RSM 3003/01 and "SSM 500/03" (sic). These have then been crossed out and replaced with RSM 3003/13 and SSM 5001/03 respectively. RSM 3003/01 and SSM 5001/03 are both grey-face, only RSM 3003/13 is black-face.

The '70 A50/A65 parts book also lists grey-face SSM 5001/05 (and /04) speedos. and RSM 3003/06 tacho. so it seems to be the same on BSA's?

Hth.

Regards,

#712167 - 10/21/17 10:51 pm Re: 69 tr25w speedo question [Re: britcyclenut]  
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Steve Erickson Online content
Steve Erickson  Online Content


Joined: Aug 2001
Posts: 1,816
The Northwoods... Michigan
After posting the above, I went to the BSAunitsingles.com spares manuals to check, and it is just as you state, Stuart, even the mis-print.

The 70 book shows the tach as optional, whereas the 69 just shows it with no mention of that.

What I found interesting about the 70 book was the speedo cups that were illustrated... they appear to be the bellows-type, which I'd never seen until 71 OIF models, certainly not on a TR25W. The 70 tach and speedo cups both have the same part number, which does not correspond to the tach cup number for 69. The 70 numbers are F-10281... wonder if that is the same as 71 Triumph twins (it is not the same as the BSA 71 numbers)?

Mighty odd stuff in these manuals...


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