A classic, redefined.
The 3T Arx Stem originally appeared in 2007. Since then this model has enjoyed continuous subtle refinement. The Arx II Team continues the original’s tradition of simple, classic construction — but with a design that drops grams from its already low weight. The 3T Arx Team II Stem takes the classic, tubular design of the ARX and further refines it with slightly flattened sides and a sculpted faceplate.
The ARX II Team stem's faceplate crimps in tighter at the top and bottom, which results in an ovalized appearance. However, even with the new shape, 3T was still able to retain its hallmark cut-out logo. This generation of the ARX also sees a more precise installation process than previous models. Instead of a traditional four-bolt Allen assembly, the ARX II features a Torx assembly at the faceplate and a single M6 bolt to clamp the stem to the steerer.
The 3T ARX II Team Stem comes in 10mm increments. Please note that this stem features a 40mm stack height, a 1.125in steerer tube diameter, and weighs 120 grams in the 110mm length.
- Q & A
Light, strong, cool.
- Familiarity: I've put it through the wringer
I've always been wary of lighter-weight components, ever since I stripped the bolts on a 3T 'Zepp' stem (remember those?) back in the day. I thought it was the stem's fault. Traditional (i.e. non-Torx) bolts didn't help. So I stayed away from 3T for a long time because of it. Experience soon taught me that precision-engineered parts require precision tools and, most importantly, a precision hand on the wrench. I wholeheartedly endorse Mr. Heinken's words of wisdom, below! This stem has only one steerer clamp bolt, which concerned me a bit. No problem at all. All of my trepidation vanished once I'd put some miles on it. It's been a fine stem--among the best I've ever used. It gives carbon's weight a run for it's money and looks understatedly cool: graphics-wise, of course, but also with it's shallow rise angle--straight and low.
3T is arguably the most famous manufacturer of cycling cockpit components (posts, stems, handlebars) in the cycling world. Turin Tube Technology and was founded by Mario Dedioniggi in Northern Italy in 1961. In 1975 Dedioniggi was the first person to use aircraft grade 7050 aluminum alloy in cycling cockpit components. 3T is found all over the UCI pro peleton. Lots of experience here.
The 3T ARX 2 "Team" stem is lightweight, strong, stiff, functional, and beautiful. A great value too.
Titanium fasteners are used on this top-of-the-line aluminum stem. And the head is of Torx design (as they are on top-of-the-line Zipp stems) because they are more resistant to stripping when being torqued down.
Note: I recommend using a torque key or torque wrench to tighten the stem's bolts down per spec (5.5 Nm front; 8 Nm rear).
If you have a carbon handlebar, it is essential to use a torque key/wrench. I recommend a swipe of grip paste on the hb/stem interface (Finish Line "Fiber Grip" -$7/tube is really good). Don't over-tighten your bar. And you don't need to if you use a torque wrench and grip paste.