e13 Helix 12sp Cassette derailleurs XT M8100 and SLX M7100

XT M8100 and SLX M7100 only

All required hardware

At less than 400g these boast up to 30% stiffer than premium carbon cranks

It's forged and cnc'd optimised and is completely suitable for Enduro use

e13 Helix 12sp Cassette derailleurs XT M8100 and SLX M7100Space Age The Helix cassette was designed to work with both high end SRAM and Shimano drivetrains so whatever your reason for choosing one or the other, you can just chuck the Helix cassette on your bike and get an increase in range and a little more top end with the 9tooth high cog. It performs flawlessly with SRAM and Shimano drivetrains allowing you to pick and choose your drivetrain parts as you prefer and not being sucked into one system