ARX PRO Arx, Latin for stronghold and bridge, is 3T's race-proven design for the perfect connection between fork and handlebar, and suited to all cycling disciplines. Clamp design is optimized to ensure a secure fit on composite steerers and 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, and also that it works very well with other brands of handlebar. Arx Pro is the value model of the range, made of AL 2010, with the grain structure aligned for optimal strength. Weight is 140 g. Technical Details Weight: 140 g (110 mm) Length: 90, 110, 130, mm Steerer: 1-1/8 " ∅ Material: AL 2010 Angle: ±6; ±17° Bolts: 4 x Chromoly Finish: Shot Peened/ Black Anodized Stack: 40 mm Certification: CEN