E*thirteen brings 12-speed range to 11-speed bikes

Keen to benefit from the 511 per cent range of a 12-speed cassette, but don’t fancy investing in a full Eagle groupset? E*thirteen may have the conversion kit for you.

The TRS Plus 12-speed conversion kit enables riders to upgrade their existing 11-speed SRAM groupsets to 12-speed without having to change the entire groupset.

E*thirteen says its system is actually superior to a full Eagle conversion, providing a greater range than a 10-50t cassette for less weight. It achieves this by using a 9-46t cassette, a shorter chain and a smaller chainring.

The more compact drivetrain also increases ground clearance, making it less likely that you’ll strike components out on the trail – thus potentially avoiding costly repairs.


The TRS Plus kit contains all the tools and parts you need to convert your existing shifter and rear derailleur to 12-speed, along with a 12-speed cassette and chain. You’ll need an XD driver hub, too, so if you're running a Shimano 11spd on a SRAM system, you're out of luck.

You will also need to rebuild your shifter with the tools supplied (below). E*thirteen says it's pretty easy, but if you're not mechanically adept, take it to your favourite mechanic.


Australian RRP for the kit is $469.95 – a pretty decent deal when compared with the $800 for a full GX Eagle drivetrain.

Admittedly, SRAM’s new NX Eagle groupset is closer in price to the e*thirteen kit at $580: however, this lower end groupset is designed to fit on a Shimano freehub body, which makes NX Eagle a better option for 2x10 or 1x11 Shimano drivetrain conversions, rather than existing SRAM 1x11 setups.

For more information, visit www.dirtworks.com.au or www.bythehive.com.

Bicycling Australia

Tour de France veteran Pat Jonker learnt his trade 
as a pro racer on the lanes and bergs of Flanders. 
Thirty years on, he returned to those roads 
to ride the Great War Remembrance cyclosportive.

It’s the single biggest issue facing each one of us - safety while out there enjoying our sport, maintaining or improving our health, fitness and wellbeing and doing what we love most. Riding our bikes.

The nation's top track cyclists will take to the boards for an exciting new event on the eve of the 2019 Santos Tour Down Under in Adelaide.