Originally Posted by
8bits
There's the KMC specific track chain too (D101), never tried but it's an option nonetheless
X101 Silver » KMC Chain
It's billed as "track/fixie"...the same as their lesser chains.
X means "long life"
HX means "heavy duty"
Unfortunately, it's tough to sort through their icons and marketing hype to tell the differences in the actual materials and construction.
The "Chain Guide" pdf lists the K710 as the strongest 1/2"x 1/8" chain in the lineup with 1300kg of break load. I'd go for that one.
http://kmcchain.us/wp-content/upload...ChainGuide.pdf