Gen 2 TRS Plus 11s 9-46T Cassettes feature a 10 steel cogs / 1 alloy cog, 2-piece design, for dramatically increased strength and long-term durability, making them an ideal choice for e-bikes. The unique assembly means ease of installation and service with lower cost and less waste. Updated shift features improve precision shifting and e*thirteen's proprietary 9T smallest cog facilitates the use of smaller chainrings for better clearance and lower overall weight. The impressive 511% range provides a serious upgrade for hardcore 11-speed fans.