identify, please

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seattle##gs

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I have a top fork clamp that does not have any provision for handlebar clamps. It does have the fork lock. part # is NM 06-1917. A small 1/4" hole where the handlebar clamps should be. what are these two little holes for?
 
Are you sure it is not a standard 1971 top triple clamp and stem with the handle bar clamp portion removed leaving the two forward holes which are around 0.250" ID at the untapped portion.

Edit add.
06.1917 is the cast in raised number for the above on the under side having a 1971 bike. (Unless that top clamp was modified at the factory for something like a PR model)
 
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seattle##gs said:
I have a top fork clamp that does not have any provision for handlebar clamps. It does have the fork lock. part # is NM 06-1917. A small 1/4" hole where the handlebar clamps should be. what are these two little holes for?
Click to expand...
Sounds like you're looking at a bottom, not top!
 
seattle##gs said:
I have a top fork clamp that does not have any provision for handlebar clamps. It does have the fork lock. part # is NM 06-1917. A small 1/4" hole where the handlebar clamps should be. what are these two little holes for?
Click to expand...
Or, maybe a later Triumph top that used "P" clamps. Email me a picture: marshg@gregmarsh.com
 
Looks like a Nort part, comes up here

71 frame and steering yokes

This is a brief explaination as I understand it of the peculiar matter of the 1971 750 frame (part 06-2002) and steering yokes. I'm working on a basket case 750 with the usual bits missing. The frame for '71 has the side stand bracket welded into the inside corner of the lower cross tube at the...
www.accessnorton.com www.accessnorton.com

"The 71 introduced the new style of top and bottom steering yokes. In any parts book, the only listing is 06-1916 bottom and 06-1915 top for 71, 72 and 73 when the 850 introduced the ANG stamped yokes. According to good friends long associated with Commandos, there was a short production run of yokes that are only suitable to the 71 frame. Something to do with the steering angle. This correct yokes are 06-1916 bottom yoke and 06-1917 for the top yoke. Two friends have authentic 71 750's, one bought new a real one owner bike. Both confirmed the stamping 06-1917 in the underside of the top yoke. With that I found a pair at the local British bike wreckers, dirty and rusty but the right parts for this rebuild."
 
Excellent response in only 35 minutes after posting. So it seems these are 1971 yokes but with NO PROVISION FOR HANDLEBARS. It really seems like these were cast this way. so my guess is that these were designed for clip-ons perhaps for those that wanted a fairing and go racing. I can't think of any other purpose.
 
seattle##gs said:
Excellent response in only 35 minutes after posting. So it seems these are 1971 yokes but with NO PROVISION FOR HANDLEBARS. It really seems like these were cast this way. so my guess is that these were designed for clip-ons perhaps for those that wanted a fairing and go racing. I can't think of any other purpose.
Click to expand...
A photo would reveal all
 
seattle##gs said:
It really seems like these were cast this way. so my guess is that these were designed for clip-ons perhaps for those that wanted a fairing and go racing. I can't think of any other purpose.
Click to expand...
NM 061917 is the '71-'73 750 yoke casting (normally with the stem). The matching lower yoke casting number is NM 061918.

1972 commando rebuild

The yoke difference was well explained, I understand the difference. Thanks for that. Are there no other markings on the underside of either yoke except for ANG on the lower and "266"? The certification plate on the headstock has been removed at some point as it is not fixed with the normal...
www.accessnorton.com www.accessnorton.com
Clamp lugs having been cut/ground off should leave a smooth surface and two holes.

850 Mk3 yoke but the holes would be in approximately the same place.
identify, please
 
OK..if somebody ground these off they did an excellent job of it. I can't tell even by running my fingers over it. I will set it aside then and look for another one. My bottom clamp is marked ANG and not compatible anyway. Thanks for the info.
 
L.A.B. said:
NM 061917 is the '71-'73 750 yoke casting (normally with the stem). The matching lower yoke casting number is NM 061918.
Click to expand...
Confirms NM is out there, didn't come up with a search, but will now
 
seattle##gs said:
Excellent response in only 35 minutes after posting. So it seems these are 1971 yokes but with NO PROVISION FOR HANDLEBARS. It really seems like these were cast this way. so my guess is that these were designed for clip-ons perhaps for those that wanted a fairing and go racing. I can't think of any other purpose.
Click to expand...

14 minutes and first reply.
I would have put 1971 and up 750's but regard the 1971 20M3S 750 (FB) as the last 750 Commando and the reason I have one.
 
Time Warp said:
14 minutes and first reply.
I would have put 1971 and up 750's but regard the 1971 20M3S 750 (FB) as the last 750 Commando and the reason I have one.
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“but regard the 1971 20M3S 750 (FB) as the last 750” means you prefer these?
 
marshg246 said:
Or, maybe a later Triumph top that used "P" clamps. Email me a picture: marshg@gregmarsh.com
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Prob wouldn't be a big deal to drill a few holes & go with p-clamps or similar (riser).
www.triumphrat.net

Looking for Triumph Unit custom handlebar p-clamps/risers

www.triumphrat.net www.triumphrat.net



solid mount option, no bushing, smallest hole
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Triumph / BSA P-Clamp Handlebar Solid Mount Kit - Choose Kit Type

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Amazon product ASIN B08PCNNLS8

Careful with ultra cheap china stuff, I've seen broken ones after install & use.
 
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ILLF8ED said:
“but regard the 1971 20M3S 750 (FB) as the last 750” means you prefer these?
Click to expand...

That was probably a little harsh (I seem too recall you are a long time 1972 Combat spec Roadster owner) and yes I have a 1971 750 Fastback and targeted that model being the last 20M3S drum brake model still with the fastback type bodywork.
Same as I targeted a Mk2a being the last right hand shift 850 that initiated upgrades that went on to the Mk3.
There is a good reason I have only sold a handful of bikes since 1976.

I still can't figure the repeat posts of what was most likely answered. (No photo offered by the OP, the cast in number said it all anyway unless it is some form of PR factory part if those came with a stanchion type clip on)
 
Time Warp said:
That was probably a little harsh (I seem too recall you are a long time 1972 Combat spec Roadster owner) and yes I have a 1971 750 Fastback and targeted that model being the last 20M3S drum brake model still with the fastback type bodywork.
Same as I targeted a Mk2a being the last right hand shift 850 that initiated upgrades that went on to the Mk3.
There is a good reason I have only sold a handful of bikes since 1976.

I still can't figure the repeat posts of what was most likely answered. (No photo offered by the OP, the cast in number said it all anyway unless it is some form of PR factory part if those came with a stanchion type clip on)
Click to expand...
Actually I see a drum front brake fastback on the ‘72 sales brochure. Of course not a 20m3S crankcase. That’s OK if these are the model you prefer. There a few reasons I prefer the ‘72 roadster over earlier 750s. The ‘73 750 is really good, but more like the 850 so might as well have a ‘73 850.
 
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