PRO Tharsis XC (+/-6) Stem

$69⁹⁹ $149⁹⁹

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Color

Black

Stem Length

100mm 90mm

In Stock Ships Immediately

PRO | SKU: PRSS0310 | Option: Black, 100mm

Pickup currently unavailable at RA Cycles - Brooklyn

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PRO Tharsis XC (+/-6) Stem Info

The PRO Tharsis XC (+/-6) Stem is built for cross-country riders who want a clean, lightweight cockpit without the usual steerer tube compromises. Machined from 7075 aluminium with titanium bolts, it's a genuinely light stem that doesn't ask you to give anything up structurally to get there.

The standout feature is the integrated external headset adjuster — a dial mounted under the stem body that pre-loads your headset bearings without requiring a star-fangled nut or expander plug inside the steerer tube. That matters beyond just tidiness: with the steerer left unobstructed, you can house a Di2 battery internally if your steerer depth is sufficient, keeping the drivetrain battery out of sight and easy to access without disturbing your saddle position. The +/-6 degree rise angle suits riders running a relatively neutral, flat bar position — common on modern XC and trail-oriented builds. Available in 90mm and 100mm lengths to dial in your reach.

PRO Tharsis XC (+/-6) Stem Specs at a Glance

Material: 7075 aluminium body, titanium bolts
Rise: +/-6 degrees
Lengths available: 90mm, 100mm
Headset adjuster: Integrated external adjuster — no star nut or expander plug required
Steerer clamp torque: 5Nm