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
Bought an XX1 11spd groupo. Purchased the EThirteen 12spd groupo kit. Sold my X01 Eagle bike while the EThirteen 12spd kit came in the mail. Installed the Ethirteen XX1 conversion kit only to discover that EThirteen's drop-in 12-spd conversion piece hangs up and doesn't work. Complete oversight on EThirteen's part!!!!
Review wise, seems worth mentiong that Sram works!!! This product cost me hours, cost me hundreds of dollars, and I've lost about "E"13 days of excellent winter-time riding during the best part of the year in Arizona. Easy to write 1 star. Easy to say it's an AWFUL PRODUCT!
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