The Fourstroke impressed us a couple of years ago, but World Cup tweaking has made it even more capable and controlled without dulling its rock solid, powerplay character.
Frame and equipment: max power, max precision design
The massive down tube dominates the chassis and locks down bar to bottom bracket stiffness so you can wrestle maximum watts through the pedals. The big symmetrical chainstays, offside triangulating strut and full carbon through axle dropouts make for an equally stiff rear subframe.
BMC has softened the low speed compression shock tune compared to the rattle and chatter of the original Fourstroke we tried. The twin linkage design still means an efficient rather than exaggerated suspension character though, even if you flick the CTD damping adjuster to fully open for maximum traction on choppy terrain.