aluminium. MTB.

A thoroughbred downhill stem.

Crafted with aerospace-grade AL6061, the Funn RSX direct mount stem has helped Veronika Widmann onto the World Cup podium four times in 2019.

It is beautifully simple and brutally tough with built-in adjustment to offer 45mm and 50mm lengths.

The Funn RSX is built for World Cup athletes and bike park shredders alike.


  • Made from full CNC’d AL6061
  • Adjustable 45mm / 50mm reach
  • Available in Red / Orange / Blue / Black / Grey


Bar clamp31.8mm35mm
Rise20mm / 30mm20mm / 30mm
Weight140g / 160g137g / 154g


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