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Thomson's vision of the perfect stem… the X4 is the purist combination of strength, weight and CNC precision. Enduro, downhill, track racers – anyone can run the X4 confidently, it’s also light enough for cross country, cyclo-cross and road bikes

Pair Thomson Elite X4 stems with our Elite or Masterpiece series posts, a seat post collar and handlebar for the entire cockpit collection

Thomson CNC classic feed lines
Durable 3mm bolts and precision matching faceplate.
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