When cube introduced their carbon stereo 140 super hpc in 2013 the first manufacturer of a long travel carbon 29er they set the bar very high with the new cube stereo 140 c68 slt 29er mountain bike 2017 they39ve raised it again a full carbon frame equipped with the finest next generation components including sram39s xo1 eagle 1x12 groupset paves the path to the future but more than that it39s also the ideal bike for perfectionists singletrack junkies and trail shredders e