Who would be interested in getting 11mm mirror stems?

[Steve Swan]

We have taken a serious step in the direction of evaluating the feasiblity of reproducing the 11mm stems.  Mark received my stem today, he really likes it alot.         

Thanks, Mark, for taking on this project.  Winter is good for  something ! 

[kp]

  Winter is good for  something ! 

NOT 

[Steve Swan]

KPster, if you can call jungle monsoons and sea to land cyclones winter, guess it's not good for something.........

[markb]

And I thought blizzards in Minnesota were bad. 

[ken736cc]

I would be interested in 2 stems for #366.
Thanks for putting in the effort.

[Riccardo]

ciao,

i'm interested in 2 mirrors.

Riccardo

[markb]

Up to 23 now.  We could use more but I think we're getting in the range where we can get a good price break.  Any more?
Thanks guys,
Mark

[Wayne]

Since mrhonda2u is saying 1221 came with them I'm now wondering about 576? I only have one mirror and it a 10mm but rusted badly. Considering I have to buy something 11 mm stems are probably a good start!

[hondasan]

I will have a pair too, even though I have no good Hm logo mirrors to hang on them!

Chris R.

[markb]

But I think you would have an easier time finding the mirrors than 11mm stems. 

[bojje]

Hi my friends! It´s a long time since I had a look at this forum but I´ll do my best to join it more often. The only of my sandcasts where I found 11 mm stems on is my oldest with VIN CB750-1000388. This one was almost original and both stems were 11 mm. Now to the question - yes, I´d like to order two sets of them. Best regards to you all, Bo from Sweden.

[markb]

Up to 31 now.  

Still researching.  The challenge is what I call the clip and making it look like it was manufactured 40 years ago.  

To try to make them as accurate as possible, I need some feedback from those of you that are lucky enough to own at least one 11mm stem.  In the pic of Steve's stem below you can see the clip is not in line with the short leg of the stem.  If it was in line then the stem would be universal, RH or LH, depending on how the mirror is mounted.  I’ve looked at some of my 10mm stems and on one the stem is inline and another it is opposite to the picture but not as much of an angle.  So it’s possible it was just sloppy fixturing.  The parts book shows a different part number for right and left hand but those are assemblies and the stem may or may not be different.  I’d like to find out what the other 11mm stems look like.  Let’s call the one in the picture a right hand.  If you have one or two will you examine them and let me know if it’s right hand, left hand or centered.  If you want to send me photos, that would be great too.


There is another difference too.  As you can see in the next pic, the hole for the 10mm stem clip (on the right) is close to the center of the radius.  The hole for the 11mm is closer to the stem and not on the center of the radius.  One of my other 10mm stems has a hole that is off center sideways.  It was from that observation and the fact the there is not any mismatch in the hole that I concluded that the hole was punched after the clip was formed.  So it is possible that the hole in the 11mm stem clip is off location.  Of course the other possibility is that it was intended to be that way.  The 11mm clip has a smaller bend radius so that there is enough clearance for the acorn nut if the hole is closer to the stem.  Anyway, to make a long story not as long, I’d like some feedback on the location of the hole in the clip too.  Again, pictures would be great.  Any other opinions, comments and suggestions will be welcome too.

[bojje]

Hi all! Mark asked if both stems are the same. They are not. Honda made the bikes very thouroughly from the beginning. On the front brake master cylinder the "stemhole" is located higher than the left hand "stemhole". To get the mirrors at the same height on both sides Honda made the right stem bent direct above the nut and the left is about 20 mm higher until it´s bent. I´ll make some photos and measure the differences and send my information to Mark. Regards, Bo.

[kp]

Hi Bo, Are you referring to the 11mm mirrors only. I've measured 6 of my 10mm mirror stems and they are the same length between the start of the thread to the centre of the radius (read bend) which is approximately 50mm (give or take a mm) The parts book shows these as different mirrors but I'm yet to work out the difference. The stems are interchangeable from what I can see as are the mirror heads but finding a difference in length eludes me. I'm certainly interested in your find
You could also achieve a height difference by changing the angle of the bend slightly.
Does anyone know if this acorn nut mirror was used on other models other than the CB750. KP

[bojje]

Hi KP! Yes, I´m only referring to the 11 mm stems. To me, the 10 mm stems seems interchangeable. Until today I havent had the time to dismount my 11 mm stems and tomorrow morning I´m leaving for Germany for a couple of days. Next week I´ll get the photos of the stems compared to each other and the both stems pictured above a woodenmeter or what you call a wood stock with both mm and inches. The nuts used for 11 mm stems has bigger holes (to fit 11 mm stems) than the 10 mm stems. But, the windingthickness is the same on both models. Until next week, Bo.