Spot Rocker Single Speed 19.5 lbs Enve 525 wheelset Syncros SL Bar Stem Rock Shox SIS Ultimate (brain edition) Specialized S-Works Saddle and Seatpost Maxxis Aspen 2.4 tires Shimano XTR crankset, Wolftooth 34tooth chainring Wolftooth 19tooth cog SRAM Level Ult Brakes