3T, Arx Pro, Stem Arx, Latin for stronghold & bridge, is 3T's race-proven design for the perfect connection between fork & handlebar, & suited to all cycling disciplines. Clamp design is optimized to ensure a secure fit on composite steerers & bars without the need for potentially damaging high torque values during assembly. 3T inhouse tests show Arx's clamp by far exceeds the CEN standard, & also that it works very well with other brands of handlebar. Arx Pro is the value model of the range, made from AL 2010, with the grain structure aligned for optimal strength.