Shimano XT CS-M8000 Cassette 11-40t , 11-42t , 11-46t for sale online | eBay
SunRace 11-46T vs Shimano XT M8000 11-46, weight, compatibility and lifespan? | Mountain Bike Reviews Forum
First Look: Shimano Brings Electronic Di2 Tech Down to Deore XT, Adds Wireless Connectivity and 11-46 Cassette Option - Mountain Bike Feature - Vital MTB