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Shifter mount

Old 01-22-24, 08:51 AM
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Shifter mount

Anyone used one of these shifter mounts on a frame without downtube shifter brazeons?

if so, positives, negatives.

Iím wanting to put indexing shifters , that I have, on a frame without mounts.

thanks
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Old 01-22-24, 09:17 AM
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Iíve used them. They work fine, look rather clunky IMO.
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Old 01-22-24, 09:34 AM
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Originally Posted by bboy314
Iíve used them. They work fine, look rather clunky IMO.
thanks for the reply. Would you happen to have a picture of them installed?
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Old 01-22-24, 09:44 AM
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learnt sumpn again on BF. I did not know those existed. Neat.
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Old 01-22-24, 10:06 AM
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Originally Posted by imabeliever1
Anyone used one of these shifter mounts on a frame without downtube shifter brazeons? if so, positives, negatives. Iím wanting to put indexing shifters , that I have, on a frame without mounts.
Yes, but an unusual application; to convert a Microshift bar-end shifter to downtube mounting for a 8-speed IGH hub last year. Very positive, solid-feeling installation. That said...

Originally Posted by bboy314
Iíve used them. They work fine, look rather clunky IMO.
...this. They really do not look C&V and, if I found a single-side band that I knew the shifter would fit, I'd probably abandon it.
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Old 01-22-24, 10:13 AM
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I have to find a pic, but at some point, I tapped a Huret or other band clamp for M5 bolts and attached modern cable stops to it for index shifting. Here's another BF-er who did something similar: Brifters without braze-ons: use clamp-on shifter mount or cable stop mount?
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Old 01-22-24, 11:08 AM
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There was a guy on Ebay selling a clamp with braze on bosses welded to it. Might look better.
PTP 28.6mm Downtube Shifters Adapter Clamp-On Index Full-Stainless USA.
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Old 01-22-24, 11:10 AM
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Originally Posted by nlerner
I have to find a pic, but at some point, I tapped a Huret or other band clamp for M5 bolts and attached modern cable stops to it for index shifting. Here's another BF-er who did something similar: Brifters without braze-ons: use clamp-on shifter mount or cable stop mount?
This. The Huret band looks nice, and tapping it is easy.

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Old 01-22-24, 11:22 AM
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I should have been more specific with what i am trying to accomplish. I'm wanting to use the Shimano 105 index downtube shifters that I have. If could modify a vintage shifter mount , that would be preferable. But, the one that I dig up did not look like it would work.

Anyone modified a vintage mount that worked with more modern downtube index shifters?

Thanks
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Old 01-22-24, 11:58 AM
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Modifying an old shifter mount is hard because a lot of them didn't really have asquare base like the shipmano shifters rely on.

At one time back when Shipmano SIS was a new thing you could actually order the shifters as clamp ons and they came with nicely chaped bases/backing plates to fit over the clamp.
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Old 01-22-24, 12:01 PM
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I used a current Sunrace SLR30 28.6 mm DT mount and Shimano SL-400 index rear shifter and it works perfectly. ($13 at AMZ) The Sunrace friction FD shifting worked fine on this beater, so I didn't change it.


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Old 01-22-24, 12:10 PM
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I had an old campy that had a rusted leverstop. I cut the stop off and dremeled the friction area down so the adjustable stop could be used.

Levers would work justly on this as well.
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Old 01-22-24, 12:12 PM
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I used one of these on a Raleigh Technium 420 to move the shifters from the stem to the downtube that did not have braze-ons. The one I bought was black and branded Origin8. Stripped the finish to make it polished aluminum. Some here worry about it moving on the tube and screwing up cable tension. I sold the bike before I could evaluate how well it worked long term.


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Old 01-22-24, 02:50 PM
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The problem solver or Origen 8 makes the levers sit pretty wide. I prefer the Huret and I never had to tap new threads.
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Old 01-22-24, 03:15 PM
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Sunrace shifters slr30 7s indexed

If you are looking to buy something, I support the choice for Sunrace shifters that was already mentioned. The clamp fits nicely with the C&V theme.
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Old 01-22-24, 07:47 PM
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Originally Posted by BTinNYC
I used a current Sunrace SLR30 28.6 mm DT mount and Shimano SL-400 index rear shifter and it works perfectly. ($13 at AMZ) The Sunrace friction FD shifting worked fine on this beater, so I didn't change it.


I have a defective Sunrace shifter and will mount my shifters to the clamp as you did here. Thank you.
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Old 01-23-24, 08:41 AM
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Originally Posted by Bianchigirll
Modifying an old shifter mount is hard because a lot of them didn't really have asquare base like the shipmano shifters rely on.

At one time back when Shipmano SIS was a new thing you could actually order the shifters as clamp ons and they came with nicely chaped bases/backing plates to fit over the clamp.
I bought one of these at a swap a few years ago with 105 levers. The base has a standard square mount, so I can use whatever levers I want for the current project.
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Old 01-23-24, 09:52 AM
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I had this come up recently and searched unsuccessfully for a suitable set of Shimano 600 clamp-on indexed shifters. I finally gave up and took the clamp off a set of Suntour shifters, which worked fine, as long as you don't mind looking down at competing brand names.
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