TRS Plus 12 Speed Upgrade Kit


More range, less weight, and less money. Need we say more?

Our TRS Plus 12 Speed Upgrade Kit lets you upgrade your existing 11 speed SRAM™ X1™, GX™, & XO1™ drivetrain to 12 speeds without needing new cranks, chainrings, shifters, or derailleurs. The exclusive-to-e*thirteen 9t sprocket allows you to run a smaller chainring for better ground clearance and additional weight savings.

Not compatible with XX1

Special Note for Hope™ Hub Owners: Please notify us if you will be installing the cassette on a Hope™ XD driver, as Hope™ XD drivers do not adhere to licensed XD specification and require an additional shim which we will include with your order.

If you're planning on building up your new bike with a 12 speed drivetrain, or your existing drivetrain just took a dive, consider saving some money and weight, without skimping on range with e*thirteen's TRS Plus 12 Speed Cassettes.
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Starting at
Regular price
€279.00 | Sold out
Sale price

Product Spec

Our 9T cog allows for greater range in a more compact, lightweight drivetrain. Smaller cogs allow for a smaller chainring, improve ground clearance, and reduce the amount of chain needed.

Mounts to an XD™ Driver with a 3mm pinch bolt, and standard cassette spline tool. Removes simply with a chainwhip and cassette tool.
Freehub Mount
XD™ Driver Only.
TRS Plus 9-46T 12 Speed Cassette, 12 speed chain, upgrade parts for your shifter and derailleur, and all the necessary tools to complete the job.
(2 Cogs) 7075 Aluminum, (10 Cogs) Steel
9-46T: 511%
9-46T: 9,10,12,14,16,18,21,24,28,33,39,46
12 Speed
9-46T: 336g

Tech Info

User manual
Frequently Asked Questions

Guaranteed to be free from
defects in materials or workmanship
for 5 years after original purchase