Nerius outers are compatible with Campagnolo carbon compact square taper and Record carbon/Chorus carbon/Centaur alloy compact Ultra-Torque cranks.
Nerius inners are for all compact Ultra-Torque cranks.
CNC machined. The 5th arm is slightly offset for crank fixing. The 5th bolt hole has no recess for a bolt head as this bolts straight into back of crank.
TAX inners: all Compact Ultra-Torque cranks
TAY outers: Carbon Compact square taper and Record carbon/Chorus carbon/Centaur alloy compact Ultra-Torque cranks
TAW outers: Centaur carbon/Veloce/Mirage compact Ultra-Torque cranks

PCD: 110 pcd Campagnolo offset arm
Colours: Silver and Black 
Material: AL 7075 T6
Speed: 9x, 10x,
Weights: 34T 27g, 48T 74g