Recommend one of these KMC chains?
 

Opinions...this is for my Rob Roy fixed, thanks:

KMC D101-112L: cut offs in the outer and inner plates to reduce weight

KMC K710SL-100L:cut offs in the plates inside and outside and hollow pins all the way

KMC Z510HX: Stretch Proof

I have only used the K710SL, but I liked it very much.

The other 2 our decent the 510 dropbuster is hard to work on easy to damage hardened and being stretch proof doesent always help. I had horrible luck with these ruined pin on expensive chainbreaker. In bmx we call them chainbusters

I've been using KMC Z510HX (1/8") chains for years, as well as the Z610HX (the 3/32" equivalent of the Z510HX). I've never had a problem with them, and they seem to last longer than any other chain I've tried. Theres no such thing as "stretchproof". You can get them for $11 or so if you look around on the web. I usually order them in bulk. The other chains are probably fine too, but anything more expensive is just uneccessary.

Thanks, anymore suggestions?

https://www.jrbicycles.com/storefron...X%20Z610HX.jpg
I used the KMC Z510 forerver. I think I have about 10 of them on various bikes. They're cheap and work well. Very economical.

However I recently bought a KMC Kool Chain and noticed it is much more resilient to stretching. It's smooth. 1/8". I haven't needed to adjust my dropouts since I bought it 4 months ago.
https://www.jrbicycles.com/storefron...ol%20Chain.jpg

izumi super V ftw!

that chain has an interesting profile, is that supposed to make it track better around the ring/cog?

Anyone know where I can find the Kool Chain in Gold (which they make) in the US? I didn't see any on Ebay or Amazon. Thanks!

bens