fw5zTPmU2K8X

I'm rebuilding an older kids bike that takes a derailleur with an integrated hanger (e.g., https://www.bikeman.com/RD8160.html). Are there any better options other than the Shimano Tourney stuff? And assuming that I go with this line, is there any substantial difference between the different models (TX31, TX51, TX71)? They appear to have the same capacity, and crispness of shifting isn't that important to me, so I guess that my biggest criterion would be durability.

HillRider

There are hangers that are threaded the standard M10x1.0 and let you use any regular rear derailleur. Here's a source but your LBS may have them too.

https://www.loosescrews.com/index.cgi...&id=8553664417

pwdeegan

And if you want the best of all the better options, scrub the derailleur and install an internal gear hub (IGH). that'd be pretty durable and rider-friendly (on account of the simpler 1x1 drive train).

fietsbob

If you want to stick with the Derailleur scheme , there are derailleur guards , steel thing that sticks out over the derailleur parallelogram .
keeps the rear mech from getting bent as easy as dropping the bike in the front yard on its right side ,
and running in to the house to see if theres any more cookies and ice cream.

newer Nexus Hubs have improved on the traditional 3 speed in that they have the shifting cable
running on the inner side of the right chainstay pulling a rotary shifting mech.
rather than the little chain pulling out,
[guards exist to protect those too, of course ,
given the 3 speed planetary gear design goes back 101 years ]

LarDasse74

Tourney is probably one of the best deals in cycling - a usable, SIS compatible derailleur with integrated mount for less than $15. WHen new it will work damn near as well as a much more expensive one, but the newness wears off and shifting will suffer.

However, the 'SIS' derailleur mounting claw is available for about $5 from any LBS (should include a bolt and half-moon nut used to keep the claw in place with wheel removed) and it allows the use of any standard derailleuur.

Shimano 8 speed IGH, or Sram 9 speed are also excellent options. Super low maintenance and ease of set-up, but lose slightly in the weight and efficiency departments.

HillRider

To say nothing of losses in the cost department.

LarDasse74

Cost is actually comprable to a good derailleur system...

TurbineBlade

To say nothing in the "why the hell not just replace the derailleur since that's what you already have" department.

I also have a tourney (not with the integrate claw) on a bike and have run it over 10,000 miles and it shifts like anything else..

larry_llama

I'm a huge fan of this derailer for simplicity and longevity, as long as you don't care about weight:


It will definitely be under $20 and probably more like $12-15 and most shops either have a bunch or can get one quickly.

cny-bikeman

I agree, except for the lack of snob appeals the low end Shimano derailleurs work very well.

fw5zTPmU2K8X

What's the name or model number of that?

It looks like there's more metal than plastic relative to the Tourney derailleurs, which seems like a good....

larry_llama

I believe this is a RD-TY22