New Shimano Ultegra R8000 39t 110mm 11-Speed Chainring for 39/53t. This Shimano chainring allows you to update your Ultegra FC-R8000 11-speed crankset with a chainring configuration to best fit your riding style. Integrates Shimano Hollowglide Technology: the high rigidity hollow structure cuts down on weight, yet maintains strength to provide better power transfer and quicker, more precise front shifting Features a weight saving 4-bolt design with a BCD of 110 mm.
Had my favorite bicycle mechanic installed the Shimano Ultegra R8000 170mm crankset. Did a couple of test rides to get the right balance of foot to crank strokes. Seems so far a good setup.
Ultegra is as good as Dura Ace a few years ago, I could not justify paying $300 more for a couple ounces and glitter. If you want to upgrade your bike, get high end wheels
You’ll never go wrong with a Shimano product. Built quality is just top notch. Been using Duraace and Ultegra on all my bikes for 15 years and counting.