Middleburn MONO 4-ARM rings are specifically for a single ring set up. They have been designed for the best combination of performance and durability, made from 5mm thick material for increased stiffness.
Perferct for single speed or single ring geared. 8 / 9 / 10 speed compatible.
The Middleburn MONO rings have been CNC machined for maximum strength.
MATERIAL: 7075 T6 alloy
FINISH: Hardcoat (grey)