• Pro Tharsis Stem

        • $82.99 82.99
        • RRP $88.49
        • Save 6%
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Pro Tharsis Stem

This ultimate Trail/All-Mountain stem is optimised for maximum performance and reliability. Manufactured using forged and CNC machined 7075-T6 aluminium the Tharsis Stem from Pro provides the perfect balance of strength and light weight for the more budget conscious Mountain Bike rider.


  • Forged then CNC machined from 7075-T6 aluminium for the perfect balance of strength and light weight
  • Oversized hexagonal stem body flares out at the clamp area to offer maximum support for the bars increasing strength and rigidity
  • Gapless front clamp-design reduces stress on the top bolts, while interlocking shape makes side movement loading on the bolts impossible
  • Wide bolt spacing and flared out forged alloy faceplate further secures and stiffens clamp interface
  • Oversized 31.8 mm clamp diameter reduces unwanted flex under high load by increasing strength and stiffness
  • Knee friendly steerer bolt positioning
  • Compatible with 1-1/8" fork steerers
  • Weight: 140g (60mm)

Buy Pro Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.

  • Delivery cost $9.99
  • Delivery toUnited States of America
  • 365 Days return or exchange

    If you're not completely satisfied with an item you may return it within 12 months of purchase. We'll give you a full refund if the item hasn't been used or the component hasn’t been fitted.

    More information on returns
  • Pay by Bank Transfer, PayPal or Card


  • Colour: Black
  • Length: 70mm, 80mm, 90mm, 60mm
  • Material: Alloy
  • Diameter: 31.8mm
  • Steerer Diameter: 1.1/8"

Interested in Pro Stems?

Stems Buying Guide

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