ARX is Latin for stronghold and bridge which makes it a fitting name for this rad aluminum stem. We have this stem mounted on a Cervelo R3 and think it’s awesome. On looks alone it gets high marks but add to that optimal strength Ti bolts to keep the weight down and a secure fit without the need for potentially damaging high torque values and you’ve got a perfect stem. Plus it’s available in a 17-degree version for a super-aggro low position. Black with red stripe or Stealth 2-tone black. 125 grams. 70, 80, 90, 100, 110, 120, 130 or 140mm. 17-degree angle.