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

Shimano Tourney TX-31 and TX-51RD

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 Tourney TX-31 and TX-51RD

Old 07-23-10, 07:37 AM
  #1  
CPFITNESS
Banned
Thread Starter
 
Join Date: Mar 2010
Location: NYC
Posts: 582

Bikes: Giant Rapid 3

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Shimano Tourney TX-31 and TX-51RD

These are all over the place for dirt cheap. Anyone have any experience with them? what are the diffeences between the 2 model numbers. I presently have a 14-34 megarange 7speed freewheel on my vintage road bike and installed a triple up front. My old suntour actually handles the 34 tooth alright but there are some minor issues with granny up front and taking up the chain. Originally I was going to keep the bike somewhat vintage but now, I've modernized the damn thing so much I might as well throw a proper RD on their and perhaps get some indexed downtube shifters. This seems like a dirt cheap way to do it.

I'm also probably going to get rid of the 34 tooth megarange since I have the granny gear up front now but I still think I need the longer cage to deal with the take up issue anyways correct?

EDIT, There is also a TX-71 i noticed the 51 and 71 have a little wheel on them that the cable runs through. I thought i saw a thread on here about that but I forget what the purpose of it was. Generally a higher model number indicates a better product and they are all so cheap I'm leaning towards the 71 since it seems like it should be a better product, but I'm wondering specifically if anything makes them better or is this just old product that never caught on that was wholesaled out and now available for cheap.

Last edited by CPFITNESS; 07-23-10 at 08:23 AM.
CPFITNESS is offline  
Old 07-23-10, 09:41 AM
  #2  
wunderkind
Pro Paper Plane Pilot
 
wunderkind's Avatar
 
Join Date: May 2009
Posts: 1,645
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
One of my old hardtail MTB that I have a Tourney RD. It has the little wheelie you talk about. That thing shift so bloody well that I have no compelling reason to "upgrade". I dare say it shifts as good as my rd7800 unit on my roadbike. I think alot of it has to do with proper cable/derailleur tuning.

It is a chunky unit though. You can see the reviews over at Amazon.com
wunderkind is offline  
Old 07-23-10, 10:23 AM
  #3  
TurbineBlade
Kid A
 
TurbineBlade's Avatar
 
Join Date: Aug 2009
Location: Alexandria, VA
Posts: 1,778
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Ditto. I have one running now and it probably shifts just as well as my deore on another bike. There's no problems with it -- it's just ugly and a bit chunky, as the above said .
TurbineBlade is offline  
Old 07-23-10, 02:11 PM
  #4  
DArthurBrown
Chasing the horizon.
 
DArthurBrown's Avatar
 
Join Date: Feb 2009
Location: Michigan
Posts: 497

Bikes: 2016 Felt F75, 2008 Mercier Corvus Steel, 2007 Trek 4300, 1985 Trek 620 (modernized)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
The Tourney rear derailleurs work fine, but will wear out more quickly than Sora, Alivio, or better types, but they'll still last several years for most folks. Don't feel bad about spoiling a vintage road bike with cheaper modern stuff. It's a great way to learn about bikes and to get into the sport inexpensively. The tourney derailleurs are also far far superior to the older rear derailleurs found on road bikes from the 1980's.

The differences between Tourney models are gimmicky. They all work about the same.
DArthurBrown is offline  
Old 07-23-10, 08:02 PM
  #5  
CPFITNESS
Banned
Thread Starter
 
Join Date: Mar 2010
Location: NYC
Posts: 582

Bikes: Giant Rapid 3

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
awesome info guys, just what i was looking for. I'm gonna pick up 2 or 3 of them at those prices. one for the vintage and one to replace the mangled up 2200 series on my rapid 3. I got ran off the road 6 weeks after getting that bike and the RD got scraped up pretty good and it's never quite shifted as crisply since.
i figured if it was a cheapo MTB derailer and durability was an issue, it would be less of an issue if its relegated to road duty and not going to get knocked around as much and filled up with dirt.
CPFITNESS is offline  
Old 07-23-10, 10:50 PM
  #6  
wunderkind
Pro Paper Plane Pilot
 
wunderkind's Avatar
 
Join Date: May 2009
Posts: 1,645
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
whoa there chief..... is the rapid 3 8spd? If so, I don't think the Tourney will match properly. Can try I guess. I thought Tourneys are 7spd only.
wunderkind is offline  
Old 07-24-10, 01:39 AM
  #7  
DArthurBrown
Chasing the horizon.
 
DArthurBrown's Avatar
 
Join Date: Feb 2009
Location: Michigan
Posts: 497

Bikes: 2016 Felt F75, 2008 Mercier Corvus Steel, 2007 Trek 4300, 1985 Trek 620 (modernized)

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
All modern Shimano derailleurs are compatible regardless of the number of speeds they're marketed for. The amount of derailleur swing is identical on all modern Shimano derailleurs. Only the shifters are set up differently to index to different number of speeds. You can use a Tourney derailleur with cheap-o 6 speed stem shifters or go nuts and use them with 9-speed dura-ace bar-end shifters. I've done just that.
DArthurBrown is offline  
Old 07-24-10, 04:17 AM
  #8  
TurbineBlade
Kid A
 
TurbineBlade's Avatar
 
Join Date: Aug 2009
Location: Alexandria, VA
Posts: 1,778
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Yeah, my tourney is stupidly listed as "7 speed" on some online sites but is actually friction shifting an 8 speed set up.

It'll work fine.
TurbineBlade is offline  
Old 07-24-10, 04:54 AM
  #9  
gitarzan
Lost Again
 
gitarzan's Avatar
 
Join Date: Jul 2009
Location: Columbus, Oh!
Posts: 1,041

Bikes: Soma Saga, 1991 Sirrus, Specialized Secteur Elite, Miele Umbria Elite.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Tourneys are made with lower end products, lots of plastic and stamped sheet metal but shift very well. For the money they are a bargain. What they lack in durability, they make up for in the functionality/price ratio.
gitarzan is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
hoyc
Classic & Vintage
12
09-01-17 07:31 PM
Pops1959
General Cycling Discussion
20
11-28-16 12:15 PM
markjenn
Bicycle Mechanics
20
12-10-13 01:57 PM
lightning60
Classic & Vintage
1
07-21-10 12:24 PM
JBHoren
Bicycle Mechanics
2
05-01-10 07:04 AM

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.