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Item # TTT002C

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  • Black Ano, 70mm/6deg ($79.99)
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Item # TTT002C

All aboard.

The engineers at 3T aren't (quite) rocket scientists, but they do seem to recognize a solid design when they've produced one. We're pleased to report that the ARX II Pro Stem's popularity throughout the self-sponsored peloton hasn't escaped their notice, and it returns for another model year with all of its original upgrades to the ARX Pro intact but nothing more besides an updated graphic. With its time-tested 2010 alloy construction and +/- 6 degrees of rise, the ARX II Pro all but guarantees the safety of your cycling ship and all those aboard.

The most obvious change from the ARX Pro to the ARX II Pro is that the length of the stem is slightly flattened on the sides. 3T notes that this creates a sleeker profile than the original ARX, but we also notice that it brings the cross section more in line with the squared-off edges of stems like the Integra, which use sharper angles to increase resistance to the torsional flex that can eat up watts while you're pulling on the bars in anger.

The face plate's top and bottom have also been trimmed up, bringing the bolts together and reducing both the aerodynamic footprint and the weight — the ARX II Pro weighs a claimed 5g less than its predecessor at 135g. The stem's hardware marks yet another point of departure, switching from Allen to Torx/star bolts, which is a less immediately obvious difference that, if overlooked, may frustrate the unprepared mechanic. The faceplate attaches with the standard complement of four bolts, but the steerer clamp only uses one, contributing yet more weight savings.

Tech Specs

Material:
2010 aluminum
Rise:
+/-6 deg
Clamp Diameter:
31.8 mm
Steer Tube Diameter:
1-1/8 in
Stack:
40 mm
Bar Attachment:
4-bolt Torx/star faceplate
Actual Weight:
Black Ano, 70mm/6deg: 120g
Recommended Use:
cycling
Manufacturer Warranty:
2 years

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