The E-Thirteen TRSR 11-speed cassette delivers what many cross-country, trail, enduro or simply touring riders want from a 1x drivetrain: Bandwidth. Because if you ride a single chainring up front, you have to live with the reduced range compared to a 2x or even 3x drivetrain and make compromises at least at one end of the gear spectrum: either pushing on very steep hills or pedalling like a hummingbird at high speeds.
And because the big drivetrain giants Sram and Shimano didn't really want to commit to sprocket sizes, the time had come for resourceful companies like E-Thirteen to supply the market with large retrofit sprockets and cassettes. For example, the TRS+ cassette presented in 2015 with 9-44 teeth had more to offer than the 11-speed cassettes from Sram (10-42 teeth).
Now the Americans are parrying the introduction of the Sram 1x12 Eagle (10-50 teeth, 500% gear range) and supplying the TRSR cassette with 9-46 teeth. This is capable of 511%, saves additional weight and costs significantly less than the complete 12-speed drivetrain from Sram. However, the high gear range comes at the cost of large gear jumps, which may not be to everyone's taste, but are simply unavoidable with a 1x drivetrain of this type.
Structure and data: the E-Thirteen TRSR 9-46 cassette at a glance
The cassette consists of a total of three parts. The three largest sprockets are milled from an aluminium block and are bolted to an XD freehub body with a lock nut. The special tool required for this is included in the scope of delivery. The eight remaining sprockets made of high-strength steel are then engaged in the aluminium body using a chain whip. All parts of the cassette will be available individually as spare parts.
Sebastian Brust
Editor
