PRO Tharsis stem – in brief review

Monocoque aluminium trail stem

Our rating 
3.0 out of 5 star rating 3.0
GBP £64.99 RRP
PRO Tharsis stem

Our review

A does-the-job stem with wide faceplate
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Named after a mountain range on Mars, the PRO Tharsis stem looks more ‘alien mountain’ than all-mountain! Despite its space age looks, the performance is relatively down to Earth.

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The big box-section 7075 aluminium unit comes in 10mm steps, from 60mm to 90mm. Despite a sturdy 186g weight for the 90mm, stiffness is decent rather than dramatic, so there’s some flex with a wide bar. 

The creak-free stainless steel steerer clamp bolts are round the side away from crashing knees, though, and the broad interlocking four-bolt faceplate spreads the load on carbon bars. 

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This article was originally published in Mountain Biking UK magazine, available on Apple Newsstand and Zinio.

Product Specifications

Product

Name Tharsis stem (13)
Brand PRO