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Needing your help

Old 02-08-22, 04:43 PM
  #1  
Cathy_arkansas
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Needing your help

I have a Schwin ( 15 speed ?)

4130 Chromie-Poly

Main - Tubes

Stamped on the bottom of the bike are the numbers 534765C

G1285
I need the GEAR shift lever ( cable too ) Iím not sure what it is called . I have a picture
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Old 02-08-22, 04:59 PM
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CliffordK
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You can upload photos to your album:
https://www.bikeforums.net/g/user/550203

Steel-Chromium-Molybdenum alloy (chromoly)

You just need a "shifter", but there are a number of different varieties depending on the bike style and bike age.

If the bike dates back to the 1980's, then you might need a "downtube shifter" or "stem shifter" or "bar end shifter" depending on the location and handlebar type.

Newer bikes can have brake-shifters (brifters), or "thumb shifters" (thumbies). Perhaps "grip shifters".

In most cases the shifters will only fit one side, so right/left, or pair is important.

Most modern shifter cables are in two types, Shimano, and Campagnolo compatible. They have small barrel type cable ends, with the Campagnolo branded ones slightly smaller. A few vintage cables will be different.

I tend to choose the cheapest STAINLESS STEEL cables I can find.

You may also need "cable housing".

You can often find cable sets at your favorite department store. Often double ended, so save the end you want, and discard the other end.
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Old 02-08-22, 05:33 PM
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curbtender
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Old 02-08-22, 06:02 PM
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CliffordK
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Ouch, I see how it is broken where the cable housing attaches.

It actually says what you need.

"Shimano Unishift"

https://www.ebay.com/itm/144404324038
https://www.ebay.com/itm/403309927500

For shifter cable
10, current bid at $5.77
https://www.ebay.com/itm/403449558757

10 at $9.68
https://www.ebay.com/itm/192395281182

Ok, so I like to buy in bulk. But that would do both sides, and give you some spares.

You may or may not also need some cable housing.

If you get the shifters from E-Bay, a bike shop couldn't complain about the purchase, and you could go to a bike shop to get the new cables and housing installed.
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Old 02-08-22, 06:06 PM
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CliffordK
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You can upgrade to more modern shifters, but those vintage shifters have a mighty large barrel, and there is no guarantee that a modern shifter would play nice with your derailleurs.

So, you end up with a cascade of upgrades.
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Old 02-08-22, 10:51 PM
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Post pictures ....I am a Schwinn factory trained mechanic ....I can help
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Old 02-08-22, 11:49 PM
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Cathy_arkansas
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I have a few photos in my thread . Sorry I am new here
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Old 02-09-22, 09:27 AM
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3 x 5 speed - Pretty much any friction thumb shifter will work.
https://www.google.com/search?q=fric...hrome&ie=UTF-8


Cheap Bell cable kit would be fine for that bike. Realistically though probably take it to the shop for cables unless you have the means to cut cable & housing and prep the ends.
https://www.ebay.com/itm/14394778597...oAAOSwRUpgKDnM
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Old 02-09-22, 09:45 AM
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You can probably take them apart and clean & lube the existing shifters.
https://si.shimano.com/pdfs/ev/EV-SL-AT50-0665A.pdf

Appears you have either a 1986 Sierra or Mirada built by Giant for Schwinn
https://waterfordbikes.com/SchwinnCa...985_atb09.html
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Old 02-09-22, 01:43 PM
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Originally Posted by dedhed View Post
You can probably take them apart and clean & lube the existing shifters.
If you look at the high res image of the OP's shifter, it appears as if there are several cracks near where the cable housing attaches to the shifter.

https://cimg6.ibsrv.net/gimg/bikefor...7f7503ba0.jpeg

I don't believe that shifter would be easy to repair.

There are other thumb shifters available, but that one has a rather large barrel. Finding one with a smaller barrel may simply change the range of movement which may still work. It will depend on the ultimate goal for the bike.

Many "Bike Co-ops" will have reasonably priced parts bins you can dig through.
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Old 02-09-22, 09:25 PM
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Cathy Arkansas - How did you decide a new shifter is needed? Are those really cracks near the cable housing? Friction shifters are pretty much bomb proof. What symptoms/problem are you trying to correct? If you do need new shifter(s) my vote is for Sunrace slm10's. I just checked Ebay and Amazon. You can get a set for around $15 with free shipping. Just be sure they're needed. It looks like new cable and housing could be needed. Perhaps you're near a bike coop that could help. Or maybe a local bike shop would give you an estimate of what is needed.
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