I buy a number of these chains when they are on sale and each will last me about 2,000 to 2,500 miles. I clean the chain every 100 miles and lube with a dry teflon spray which gets out the majority of the road gunk and provides another smooth ride and performance stroke. Park tool has a nice chain tester to determine best time to replace, prior to waiting and have the chain slipping or jumping gears. Ride on... smoothly!
Be careful when you buy this Shimano chain. Three of the last four that I bought or checked at the store already showed 0.5% of chain stretch out of the box, using a Park tool. In other words, two thirds of the wear was already present in the new chain. I gave up and bought a KMC chain which was solidly at 0% wear.
I recently purchased this chain as a replacement for a KMC chain I had previously. My bike had a mix of Shimano 105, KMC, and FSA components, but I've made a couple upgrades to Ultegra as I wore parts out. I found this chain to be easy to install and it's running smoothly on my bike now. I've noticed that my efficiency has increased slightly since installation, which has translated to several unexpected PRs on Strava segments. I am very happy with the high standard Shimano has set with their components, and Ultegra is a great balance of performance and price.
A new chain can make your bike run like a deer. I love my Cannondale caad10 Ultegra, but even more when my favorite mechanic Todd puts on a new chain and tightens up the derailleur. Ride safe, but wear a bracelet with your medical contact.
Just a rock solid, well priced, chain. Have been using the Ultegra on all my bikes for years. Clean, lube, replace when my Go, No Go chain checker tells me to. No need to over sell it!
Replaced my original chain after 3600 miles (still had life left) on trek road bike. The shimano is lighter and shifts smoother than the original even when new. I get good miles out of my chains as I clean them every 150-200 miles. I remove soak them in simple green, scrub with paint brush, rinse and blow dry with hair dryer, reinstall with master link then use Motorex road strong motor cycle lube. I know your thinking this guy is text book OCD my wife keeps telling me that, never the less my LBS tells me what ever I'm doing its working.
Okay the chain works great and is the high quality we expect and get from Shimano. My only caveat is that installation of this chain is not as easy or foolproof as with the SRAM or KMC products. I learned the hard way-the link pin must be inserted correctly or the chain can break. In my case the chain broke as I was climbing a hill, and locked up in the rear derailleur which then tore through the chainstay of my titanium Litespeed on its maiden voyage. A bitter pill for sure, for which I don't blame Shimano. I simply want to warn users of this system that installing this chain correctly is important. Since this disaster I have installed these without a problem and run them on more than one of my bikes, so all good now. But a tough way to learn I hope other buyers avoid.