Tharsis ThreeFive Direct Mount Stem

What Our Gearhead® Experts Are Saying:

"I spec the PRO Tharsis ThreeFive Direct Mount Stem to complete Tharsis 3Five cockpit builds and the result is a front end that feels completely cohesive and purposeful. The CNC machined AL-7050 construction gives it a precision fit and stiffness that you feel immediately on technical terrain, and the 35mm oversized clamp diameter working through a direct mount interface produces about as stiff and responsive a front end as you can build on a trail bike."

A direct mount stem eliminates the steerer tube interface of a conventional stem design, and combined with an oversized 35mm clamp diameter the result is a front end that is measurably stiffer and more responsive than anything a traditional stem and headset combination can deliver. The PRO Tharsis ThreeFive Direct Mount Stem was designed to complete the Tharsis 3Five cockpit, bringing the same construction quality and control-focused intent to the stem that the Tharsis ThreeFive handlebar brings to the bar.

CNC machined from AL-7050 alloy, the stem delivers a precision fit and finish that reflects the performance level it is built for. Two length options at 45mm and 50mm give builders flexibility to dial in reach and handling feel across different frame geometries and rider positions, the 0-degree rise keeps the front end clean and low, and the 4mm stack keeps the overall cockpit height minimal on builds where that matters. From 125 grams it carries the weight of a component that takes its place on a performance trail build seriously.