ZTTO 11Speed 9-50T Bicycle Cassette ULT 11s MTB 9T XD Hub Bike Sprocket Flywheel
ZTTO 11 Speed 9-50T Bicycle Cassette ULT 11s MTB 9T XD Hub Full steel Mountain Bike 11speed Sprocket Flywheel Specification: 100% Brand New XD Compatible 9-11-13-16-20-24-28-32-36-42-50 Material : High strength steel (9-42T) and 7075 Alloy(50T) Weight : about 380g(ULT) Color : Black and Gold Feature: The latest version 50T is changed to black color, Compared to the gray 50T version, we adjusted a bit of the shift design to optimize performance and strength. Shi's and SR"s derailleur is compatible. you can use like M8000/ GX / X1 etc. (SR"s derailleur need hanger extension to work together for 50T on some frame). in the video, we are using GX derailleur + hanger extension + ZTTO 9-50T ULT + ZTTO 11speed chain. Package included: 1*flywheel