Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Shimano RSX shifter

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Shimano RSX shifter

Old 06-11-23, 02:27 PM
  #1  
Newbie
Thread Starter
 
Join Date: Aug 2015
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Shimano RSX shifter

Hello,

Trying to fix my Shimano RSX shifter that could not downshift anymore, I realized after cracking it opened that greasing, which can commonly be the culprit, was not in cause.

I found instead that the small tab on top of the barrel that should be rotated down which each downshift click, was not moving due to its torsion spring being broken.

Other than finding another shifter for the part or replace it entirely, does someone have a clue what is that spring part number? I have obviously little hope that this would be made known by Shimano, let alone kept in stock by bike shops, but I figured I would ask on this forum.

Thanks.
Silverstone is offline  
Old 06-11-23, 02:48 PM
  #2  
Senior Member
 
maddog34's Avatar
 
Join Date: Jul 2015
Location: NW Oregon
Posts: 2,986

Bikes: !982 Trek 930R Custom, Diamondback ascent with SERIOUS updates, Fuji Team Pro CF and a '09 Comencal Meta 5.5

Mentioned: 15 Post(s)
Tagged: 1 Thread(s)
Quoted: 1301 Post(s)
Liked 745 Times in 539 Posts
get a new or good condition used shifter.
maddog34 is offline  
Likes For maddog34:
Old 06-11-23, 07:13 PM
  #3  
Senior Member
 
Join Date: Oct 2009
Location: Mt Shasta, CA, USA
Posts: 2,147

Bikes: Too many. Giant Trance X 29, Surly Midnight Special get the most time.

Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 533 Post(s)
Liked 316 Times in 239 Posts
Shimano has never sold small parts for shifter internals. Its dead, unless you can fabricate or salvage the spring.

Honestly, unless you are trying to keep everything perfectly vintage appropriate, its probably time for new shifters.
cpach is offline  
Likes For cpach:
Old 06-12-23, 09:47 AM
  #4  
Senior Member
 
Join Date: Mar 2012
Posts: 1,011
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 515 Post(s)
Likes: 0
Liked 653 Times in 367 Posts
Originally Posted by Silverstone
Hello,

Trying to fix my Shimano RSX shifter that could not downshift anymore, I realized after cracking it opened that greasing, which can commonly be the culprit, was not in cause.

I found instead that the small tab on top of the barrel that should be rotated down which each downshift click, was not moving due to its torsion spring being broken.

Other than finding another shifter for the part or replace it entirely, does someone have a clue what is that spring part number? I have obviously little hope that this would be made known by Shimano, let alone kept in stock by bike shops, but I figured I would ask on this forum.

Thanks.
No user serviceable parts inside.
KerryIrons is offline  
Old 06-12-23, 02:35 PM
  #5  
Senior Member
 
Join Date: Feb 2012
Location: Golden, CO and Tucson, AZ
Posts: 2,849

Bikes: 2012 Specialized Elite Disc, 1983 Trek 520

Mentioned: 13 Post(s)
Tagged: 0 Thread(s)
Quoted: 681 Post(s)
Liked 755 Times in 435 Posts
One time I was able to put a new bend in a broken torsion spring, to hook over a ratchet pawl, but that was a rare case. Channel your inner clockmaker.

If there's a bike co-op near you, they may have one in a bin of salvaged shifters.

Is this a seven speed? Mine worked for over 20 years until I sold the bike, well over 50K miles. Pretty good stuff.
andrewclaus is offline  
Old 06-13-23, 12:53 PM
  #6  
Senior Member
 
Join Date: Sep 2021
Location: SW Florida, USA
Posts: 1,305

Bikes: Yes

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 559 Post(s)
Liked 703 Times in 473 Posts
If you really want to keep the RSX STIs, there's a guy in California who repairs them. His eBay user name is "zigan".

He claims to have serviced "hundreds" of older 7/8 speed STIs over the years (105, Shimano 600, RSX, or RX-100). I've never done business with him, but for what it's worth his eBay listing indicates he guarantees that shifters he services will work on return.

Shimano also made a Sora STI that was 7-speed (ST-3300-7). A few of those may also be available NOS. (The right shifter is, but on doing a cursory look I wasn't able to find a 7-speed L + R set that was available NOS.) Be careful if you opt to go this route, because Shimano also made an 8-speed version of the same shifter set that appears to be more common.

There are also Tourney STIs (7-speed). They're reasonably available, but are at the lower-end of Shimano's road product line.

Best of luck in finding what you need to get the bike back in working order.

Last edited by Hondo6; 06-13-23 at 01:03 PM.
Hondo6 is offline  
Old 06-13-23, 01:52 PM
  #7  
Senior Member
 
Join Date: Sep 2021
Location: SW Florida, USA
Posts: 1,305

Bikes: Yes

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 559 Post(s)
Liked 703 Times in 473 Posts
OP: you haven't specifically identified which RSX STI shifters you have. There were 3 variants: ST-A410, ST-A416, and ST-A417. I believe the A410 was the 7-speed set, while the A416 and A417 were the 8-speed double (set, F+R) and triple (front) models, respectively.

The Shimano EV for the ST-A410 can be found here. The EV for the ST-A416 and ST-A417 can be found here.

It's also unclear precisely what spring in which lever is broken. If it's item 7 (main lever return spring) on any of these diagrams for the left (FD) shifter, that part appears to be available NOS here:

https://www.ebay.com/itm/115791677672

If it's the right shifter that's an issue - or if it's any other spring - no joy.

I'm reasonably sure the eBay listing is correct in stating that the part is no longer available from Shimano. Those shifters were discontinued 24 years ago.

Last edited by Hondo6; 06-17-23 at 04:46 AM. Reason: Corrrect typos.
Hondo6 is offline  
Likes For Hondo6:
Old 06-13-23, 04:30 PM
  #8  
Senior Member
 
Join Date: Dec 2009
Posts: 592
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 95 Post(s)
Liked 152 Times in 106 Posts
When I needed an RSX shifter I found a good used one on Ebay from a bike shop.
ARider2 is offline  
Old 06-15-23, 06:01 AM
  #9  
Newbie
Thread Starter
 
Join Date: Aug 2015
Posts: 4
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Thanks all for your comments, I will most probably end up replacing the whole shifter. Shopping around on used ones in shops, Marketplace. It was a 7-speed. And oh, Hondo6 it’s the A410 model, and the spring is part of the no joy category. Sorry I could not post a picture, I apparently need to reach 10 posts for that and grow from my Newbie status!

Last edited by Silverstone; 06-15-23 at 06:12 AM.
Silverstone is offline  
Old 06-17-23, 04:50 AM
  #10  
Senior Member
 
Join Date: Sep 2021
Location: SW Florida, USA
Posts: 1,305

Bikes: Yes

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 559 Post(s)
Liked 703 Times in 473 Posts
Originally Posted by Silverstone
And oh, Hondo6 it’s the A410 model, and the spring is part of the no joy category.
Bummer. Figured that "no joy" might well be the case, but didn't know for sure. Decided to post the links to the EVs and NOS spring anyway in the event that was the spring you needed.

Again, best of luck.

Last edited by Hondo6; 06-17-23 at 04:54 AM. Reason: Clarification.
Hondo6 is offline  
Old 06-17-23, 05:05 AM
  #11  
Ride more, eat less
 
cat0020's Avatar
 
Join Date: Feb 2007
Location: Philla PA, Hoboken NJ, Brooklyn NY
Posts: 2,099

Bikes: Too many but never enough.

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 726 Post(s)
Liked 762 Times in 469 Posts
Compatible shifters are likely cheaper, lighter & easier to operate.
I ditched the flimsy old RSX shifters on my Moulton ABP (heavy, compact bike) with Microshift more than 8 years ago.

Cost was less than $50 for the pair of shifter levers, works just as well and much lighter in weight.
https://www.aliexpress.us/item/2251832658214336.html

Other models that allow cables to be routed under the bar tape
https://www.aliexpress.us/item/3256803914273699.html
cat0020 is offline  
Old 06-20-23, 06:27 PM
  #12  
Senior Member
 
Join Date: Sep 2021
Location: SW Florida, USA
Posts: 1,305

Bikes: Yes

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 559 Post(s)
Liked 703 Times in 473 Posts
Originally Posted by cat0020
Compatible shifters are likely cheaper, lighter & easier to operate.
I ditched the flimsy old RSX shifters on my Moulton ABP (heavy, compact bike) with Microshift more than 8 years ago.

Cost was less than $50 for the pair of shifter levers, works just as well and much lighter in weight.
https://www.aliexpress.us/item/2251832658214336.html

Other models that allow cables to be routed under the bar tape
https://www.aliexpress.us/item/3256803914273699.html
The first link you posted is to a product by MicroNEW, not a product by MicroShift.

They are not the same company.

MicroShift is based in Taiwan, and has been around for roughly 24 years. Their products have a pretty damn good reputation.

MicroNEW is a completely different, much newer company based in the PRC. Their products don't have as good a reputation.

Further, MicroShift has stated publicly that they believe MicroNEW has counterfeited some of their products.

Last edited by Hondo6; 06-21-23 at 07:03 AM. Reason: Add info.
Hondo6 is offline  
Old 06-21-23, 08:20 AM
  #13  
Ride more, eat less
 
cat0020's Avatar
 
Join Date: Feb 2007
Location: Philla PA, Hoboken NJ, Brooklyn NY
Posts: 2,099

Bikes: Too many but never enough.

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 726 Post(s)
Liked 762 Times in 469 Posts
As stated in my previous post, I replaced the RSX brifters 8 years ago.

I use whatever links I could find.

The Chinese copying Taiwanese successful products, what else is new?
cat0020 is offline  
Old 06-21-23, 04:19 PM
  #14  
cowboy, steel horse, etc
 
LesterOfPuppets's Avatar
 
Join Date: Sep 2008
Location: The hot spot.
Posts: 45,096

Bikes: everywhere

Mentioned: 74 Post(s)
Tagged: 1 Thread(s)
Quoted: 12928 Post(s)
Liked 7,843 Times in 4,167 Posts
Originally Posted by cat0020
Compatible shifters are likely cheaper, lighter & easier to operate.
I ditched the flimsy old RSX shiftersl
Flimsy? I remember the cyclops-era Shimano shifters being built like tanks. Maybe just because with the later 9-speed stuff I'd always break the little nose cones off or they'd just rattle...
LesterOfPuppets is online now  
Old 06-22-23, 06:05 AM
  #15  
Ride more, eat less
 
cat0020's Avatar
 
Join Date: Feb 2007
Location: Philla PA, Hoboken NJ, Brooklyn NY
Posts: 2,099

Bikes: Too many but never enough.

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 726 Post(s)
Liked 762 Times in 469 Posts
Originally Posted by LesterOfPuppets
Flimsy? I remember the cyclops-era Shimano shifters being built like tanks. Maybe just because with the later 9-speed stuff I'd always break the little nose cones off or they'd just rattle...
Honestly, when was the last time you have had 30+ year old, 7-spd components on your bike that you use regularly?
cat0020 is offline  
Old 06-22-23, 09:27 AM
  #16  
cowboy, steel horse, etc
 
LesterOfPuppets's Avatar
 
Join Date: Sep 2008
Location: The hot spot.
Posts: 45,096

Bikes: everywhere

Mentioned: 74 Post(s)
Tagged: 1 Thread(s)
Quoted: 12928 Post(s)
Liked 7,843 Times in 4,167 Posts
Originally Posted by cat0020
Honestly, when was the last time you have had 30+ year old, 7-spd components on your bike that you use regularly?
Welp, I like old bikes so ride them all the time. Currently in the roadie realm, only ride a '70s Legnano w/ 5sp, an '80s Schwinn with 6sp, and 9sp on a Basso and Lemond.
LesterOfPuppets is online now  
Old 06-22-23, 09:47 AM
  #17  
Senior Member
 
Join Date: Sep 2021
Location: SW Florida, USA
Posts: 1,305

Bikes: Yes

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 559 Post(s)
Liked 703 Times in 473 Posts
Originally Posted by cat0020
As stated in my previous post, I replaced the RSX brifters 8 years ago.

I use whatever links I could find.
If you replaced them with MicroShift brifters you could have taken the time to find an accurate link. MicroShift still makes 7-speed brifters.

https://www.microshift.com/products/...7;pa_speed:109

Originally Posted by cat0020
The Chinese copying Taiwanese successful products, what else is new?
Nothing. But no need to give a counterfeiter free publicity and (potentially) steer business to them instead of the legitimate source, either.

Last edited by Hondo6; 06-22-23 at 10:26 AM.
Hondo6 is offline  
Old 06-22-23, 09:55 AM
  #18  
Senior Member
 
Join Date: Sep 2021
Location: SW Florida, USA
Posts: 1,305

Bikes: Yes

Mentioned: 8 Post(s)
Tagged: 0 Thread(s)
Quoted: 559 Post(s)
Liked 703 Times in 473 Posts
Originally Posted by cat0020
Honestly, when was the last time you have had 30+ year old, 7-spd components on your bike that you use regularly?
FWIW: the OP's brifters aren't yet "30+ years old". Per Velobase, first year for RSX was 1995.

To answer your question anyway: they're not quite 30 years old yet, but I last used something like that about 1/2 hour ago. Got back from a ride about then on a bike I got brand new in the late 1990s.

It still has the original Shimano 7-speed RD/FD/shifters/brake levers/brake calipers that came with it.

No issues with them to date.
Hondo6 is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.