Product details:

Decisions, decisions. Single ring, dual ring, triple ring, wedding ring. It's hard to decide what gearing you want, and if that wasn't enough you then have to choose how you are going to manage your chain amongst all those gears. Nightmare! E.thirteen have taken away the problems with managing your gears and created the TRS+ Dual Ring. Designed to work in harmony with your 2x 10 or 2x 9 speed set-up and front derailleur, shifting and chain security will no longer be an issue. Constructed from 6061-T6 Aluminium back plate saving weight, while the direct mount bashguard deflects any attacks from rocks, durability is at the forefront of this design. Keeping the chain in place is a replaceable smooth running dual stealth lower roller, whilst up top the shark fin stops chain wander whilst chattering over rough terrain.