PRO Tharsis XC Stem -17 Degree

Sale price $69.99 Regular price $149.99

Prices subject to change. How pricing works →

On sale now — special pricing for a limited time.

Color
Stem Length

In Stock Ships Immediately

SKU: PRSS0314 Option: Black / 80mm

Stock Availability by Location

RA Cycles Brooklyn — Out of stock

105 5th Ave, Brooklyn, NY 11217718-636-5242

RA Cycles Walnut Creek Low stock (1 left)

2099 Mt Diablo Blvd, Walnut Creek, CA 94596925-433-7099

* Available for in-store pickup in 2-4 hours

Distribution Center - East — Out of stock

Distribution Center - Central — Out of stock

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PRO Tharsis XC Stem -17 Degree Info

The PRO Tharsis XC Stem -17 Degree is a cross-country stem machined from 7075 aluminum and secured with titanium bolts — a combination that keeps weight low without compromising clamping strength. The -17 degree angle suits riders who want a more aggressive, lower front end on their XC or trail setup.

What separates the Tharsis from a standard stem is its integrated external headset adjuster — a dial built into the underside of the stem that replaces the need for a star-fangled nut or expander plug inside your steerer tube. You clamp the stem, use the dial to remove headset play, and you're done. That open steerer also creates a useful cavity: on steerer tubes 152mm or deeper, a Shimano Di2 battery can be routed and housed internally, keeping your cockpit clean and the battery accessible without disturbing your saddle height. Available in 70mm, 80mm, and 90mm lengths to suit a range of rider positions.

PRO Tharsis XC Stem -17 Degree Specs at a Glance

  • Material: 7075 aluminum with titanium bolts
  • Rise: -17 degrees
  • Lengths available: 70mm, 80mm, 90mm
  • Integrated external headset adjuster — no star-fangled nut required
  • Compatible with internal Di2 battery routing on steerers 152mm and deeper

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