Dura Ace downtube shifters - don't believe everything retailers tell you...

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scottg
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby scottg » 13 Sep 2020, 6:30pm

mikeymo wrote:
scottg wrote:Hmmm, the 10s d/t Shimano shifters have the d ring, friction option.

Just checked actual bikes, reality is not as reliable as the internet in most cases
as we all know. :)


There are TWO different 10 speed d/t shifters.

So are yours SL-7800 or SL-7900? On my SL-7700 the model number is written on the black plastic ring.


7800 = friction switchable
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mikeymo
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby mikeymo » 13 Sep 2020, 10:44pm

Mick F wrote:
mikeymo wrote:
Mick F wrote:I went and studied mine to make SURE it wouldn't go into friction. The only screw, is the slotted screw to fit it together ........ and it does nowt other than make the lever loose and floppy by unscrewing a tad. :lol:


So are yours SL-7800 or SL-7900? On my SL-7700 the model number is written on the black plastic ring.
Mine are 7900.
Even with my strong glasses on, there is nothing written on the black plastic ring on the right lever or the left lever.


Thanks. Is there any sort of identifying mark on them at all? It's a shame if there isn't, as it's the 10 speed DT shifters that need better identification, it seems.

mikeymo
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby mikeymo » 13 Sep 2020, 10:45pm

scottg wrote:
mikeymo wrote:
scottg wrote:Hmmm, the 10s d/t Shimano shifters have the d ring, friction option.

Just checked actual bikes, reality is not as reliable as the internet in most cases
as we all know. :)


There are TWO different 10 speed d/t shifters.

So are yours SL-7800 or SL-7900? On my SL-7700 the model number is written on the black plastic ring.


7800 = friction switchable


Thanks. Is there any sort of identifying mark on them at all?

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Mick F
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby Mick F » 14 Sep 2020, 6:21am

mikeymo wrote:
Mick F wrote:
mikeymo wrote:
So are yours SL-7800 or SL-7900? On my SL-7700 the model number is written on the black plastic ring.
Mine are 7900.
Even with my strong glasses on, there is nothing written on the black plastic ring on the right lever or the left lever.


Thanks. Is there any sort of identifying mark on them at all? It's a shame if there isn't, as it's the 10 speed DT shifters that need better identification, it seems.
Sorry, not quite correct what I said. I looked again! :oops:

The levers say Dura Ace on them, and on the LH lever black plastic boss it says SL-7900 Shimano Light Action.
Nothing at all on the RH boss to identify it, so theoretically I could swap to 9sp or 8sp and leave the LH as it is. Mix and match?

The SJS picture is better than I could photograph.
20304.jpg
Mick F. Cornwall

mikeymo
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby mikeymo » 14 Sep 2020, 9:52am

Mick F wrote:
mikeymo wrote:
Mick F wrote:Mine are 7900.
Even with my strong glasses on, there is nothing written on the black plastic ring on the right lever or the left lever.


Thanks. Is there any sort of identifying mark on them at all? It's a shame if there isn't, as it's the 10 speed DT shifters that need better identification, it seems.
Sorry, not quite correct what I said. I looked again! :oops:

The levers say Dura Ace on them, and on the LH lever black plastic boss it says SL-7900 Shimano Light Action.
Nothing at all on the RH boss to identify it, so theoretically I could swap to 9sp or 8sp and leave the LH as it is. Mix and match?

The SJS picture is better than I could photograph.20304.jpg


Thanks. All very strange. It's actually the RH lever that could do with an identifying mark, as that's the indexed one. The left hand one is friction only so could be almost anything presumably.

Brucey
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby Brucey » 14 Sep 2020, 10:21am

this is Y-6RP01100 which is the RH cap from SL-7900

Image

this is listed by SJS (but is presently out of stock).

This is Y-6BG51200 which is the LH cap from SL-7900

Image

listed by SJS and currently in stock.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

scottg
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby scottg » 14 Sep 2020, 2:22pm

mikeymo wrote:Thanks. Is there any sort of identifying mark on them at all?


the black plastic ring says '7800' in 6pt type.
Also the levers have latitudinal groves on them,
they're are not smooth like the ones in the SJS picture.
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mikeymo
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby mikeymo » 14 Sep 2020, 2:27pm

scottg wrote:
mikeymo wrote:Thanks. Is there any sort of identifying mark on them at all?


the black plastic ring says '7800' in 6pt type.
Also the levers have latitudinal groves on them,
they're are not smooth like the ones in the SJS picture.


Thanks. I think we're getting some sort of picture of what situation is with these things.

"6pt" is nice and accurate, thanks. What font is it ? ;-)

Jdsk
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby Jdsk » 14 Sep 2020, 2:31pm

Last edited by Jdsk on 14 Sep 2020, 2:59pm, edited 1 time in total.

Brucey
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby Brucey » 14 Sep 2020, 2:35pm

Image

SL-7800 10s RH lever

cheers
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Mick F
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby Mick F » 14 Sep 2020, 3:00pm

Took a photo of mine.
Shimano Dura Ace 10sp RH.

What M5 means, I have no idea.
Looking very closely, it says 10s ......................... but until this afternoon, I've never seen anything on it.
IMG_0098.jpg
IMG_0097.jpg
Mick F. Cornwall

Brucey
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby Brucey » 14 Sep 2020, 3:03pm

M5 is the threading on the centre bolt. I expect the other lettering on your SL-7900 end cap has just worn off....?

cheers
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Brucey
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby Brucey » 14 Sep 2020, 3:08pm

Jdsk wrote:Screenshot 2020-09-14 at 14.58.35.png
"Soldier"
https://www.dafont.com/soldier.font?text=SHIMANO&psize=l

Jonathan


that is presumably meant to be the one but it isn't rendered accurately on the actual lever ends caps; some of the corner radii are wrong

cheers
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scottg
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby scottg » 14 Sep 2020, 4:09pm

mikeymo wrote:
"6pt" is nice and accurate, thanks. What font is it ? ;-)


Shimano san(s)?

(former font anorak)
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mikeymo
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Re: Dura Ace downtube shifters - don't believe everything retailers tell you...

Postby mikeymo » 14 Sep 2020, 4:19pm

scottg wrote:
mikeymo wrote:
"6pt" is nice and accurate, thanks. What font is it ? ;-)


Shimano san(s)?

(former font anorak)


Yes, it's quite possible there actually is a Shimano font, isn't it?