No longer just a prototype. This thing actually exists. Available in 9-46 tooth 12 speed range, this cassette from e*thirteen is all about max range. Sure, the current 1x12 speed drivetrains are great, but a 9 tooth cog opens up the possibility for those of us who want or need the ability to run an even smaller front ring. Drop down from 32t to a 30t provides an even easier climbing gear while holding onto the high gear ratio we need for the flats and pinning it down the hill.
The TRS+ cassette utilizes a three piece assembly and an XD driver to make it all possible. An aluminum 3 cog cluster installs to the SRAM XD driver and is held in place with a clamp and pinch bolt. The remaining 8 steel cogs lock into place with the aid of a chain whip. This unique feature allows for easy replacement of the quicker to wear aluminum cogs instead of having to fork out the dough for a completely new cassette.
Please Note: This is the new style cassette that utilizes the pinch bolt to lock the 3 largest cogs into place. It does not use the older style threaded lockring.
Ingenious design utilizes XD Driver mounting to enable a 9-46T 12sp cassette
Keeps drivetrain simple and still gives the gear range of a 2x system or more
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