BMC's Speedfox SF03 is ready for marathon domination. This lightweight, agile 120mm-travel aluminum steed is ready to rally downhills and throw down on the climbs with mountain-goat-like voracity. BMC's Advanced Pivot System is paired with a SCOR rear shock to let the Speedfox devour obstacles so you can rail corners, fly through techy sections and power up that next hill. Up front, RockShox's Recon Gold fork absorbs the gnar, while the Shimano drivetrain and Avid Elixir 3 hydraulic stoppers handle the shifting and braking duties. And, you'll roll right over chunder with the tough Alex rims laced to Shimano hubs and wrapped in grippy Schwalbe rubber.