Like the Fourstroke FS02, the Speedfox SF02 has a carbon main frame matched to an aluminum dual-link rear triangle. It also shares the same 12×142 mm rear axle and a BB92 PressFit bottom bracket. Travel sits at 130mm front and rear (the Fourstroke has 100mm of travel). The 68.5-degree headtube angle confirms it’s intent as more Trail than XC – it’s 1.5-degrees slacker than the Fourstroke.
The Fox CTD shock is rocker-driven and positioned vertically to make room for a downtube bottle. The frame’s rectangular-profiled tubes are sharply tapered and angled, a deviation from the swoopy, curvy lines of most trail bikes. The finishing is noticeably impressive and typically Swiss with molded, screw-on plastic caps that make for clean entries and exits for the Speed Fox’s internal housing and hoses, and a thick, molded rubber chainstay protector.
The build includes a Fox Float 34 fork with 130mm of travel with manual CTD adjust and a DT Swiss M1700 Spline wheelset. The groupset is Shimano XT, with a 2×11 drivetrain and 180mm brake rotors front and rear.
There’s a Rock Shox Reverb dropper seatpost with remote adjust and the cockpit comprises BMC-branded alloy handlebars and stem with Fizik Gobi saddle (although our test rig came with a ProLogo perch).
The tyres are Onza’s Canis upfront an Ibex at the rear – tubeless ready and both 2.25 wide. It looks a little long and low-slung, but also rather svelte for a trail bike. But it has a fairly average wheelbase (1149mm) and shortish chainstays (435mm). The finish is a combination of matte and gloss black, which really is rather beautiful.