H92 9-speed cassettes are nickel plated for durability, and constructed using the same processes as microSHIFT's higher end cassettes, resulting in rapid, responsive shifting at an affordable price.
Compatible with SRAM and Shimano 9-speed systems
Continuously molded cogs are straighter than stamped steel, resulting in more consistent, predictable shifting performance
Nickel plated
Precision ramps and chamfers for rapid chain movement
This cassette (11-28) shifts as well as the Dura-Ace cassette (11-24) it replaced. Now that said, I did replace the Shimano chain at the same time with a KMX X9.93. But for the cost, you cannot beat this cassette.
I've put it through the paces on flats, downhills, and shifting under pressure while pedaling uphill. I have all Ultegra drivetrain (other than the original cassette), if that matters.
It's definitely heavier than the Dura-Ace cassette, but not by much.