Truvativ descendant dh mtb crankset gxp83truvativs descendant dh gxp83 mtb crankset draws on the experience that has been gained through countless world cup downhill victories on previous models to produce a crankset that is light enough to help you beat the clock but also tough enough for the most extreme freeriding its finished off with srams pro rider favourite x sync chainring which features sharp square edged teeth for ultimate chain engagement and excellent chain retention in al