Carbon full-suspension mountain bike Trek Supercaliber SLR 9.9 XX Flight Attendant navy: 110/80 mm, 10.28 kg

Trek Supercaliber SLR 9.9 XX Flight Attendant Navy Smoke: the pinnacle of Trek cross-country

The Trek Supercaliber SLR 9.9 XX Flight Attendant Gen 2 is Trek's most accomplished cross-country mountain bike: an OCLV Mountain SLR carbon frame, a 110 mm fork, an 80 mm IsoStrut shock housed in the top tube and a wireless SRAM XX SL drivetrain. It weighs 10.28 kg in size M, the lightest in the family. The Navy Smoke colour dresses it in a deep, understated smoky navy blue that reveals the carbon weave in full light.

Technical specifications

Who is it for?

For the committed racer in regional cups or championships who strings together XCO rounds and wants a bike that wastes no watts. It is aimed at the rider who already knows their suspension settings and expects the bike to take care of the rest during the effort.

The LVR workshop view

OCLV carbon, Trek's signature. Since 1992, Trek has heat-pressed its fibre sheets to eliminate the air pockets that weaken a frame. The OCLV Mountain version is calibrated for off-road use: it has to withstand rock strikes and crashes, not just be stiff. On this flagship, it is the SLR version, the lightest in Trek's mountain bike catalogue, that forms the frame; it remains covered by Trek's lifetime warranty.

In short: the 9.9 XX Flight Attendant does not change frame compared with the other SLRs; it brings together the very best Trek does around it: XX SL drivetrain, Motive Ultimate brakes, carbon wheels and electronic suspension. The result is the lightest Supercaliber in the range, 300 g under the 9.9 XTR Di2.

Flight Attendant changes the way you race: sensors analyse the terrain and your pedalling, then the fork and shock switch by themselves from open to firmer settings. At the start of a race, there is no need to hunt for the lockout lever as you accelerate: both hands stay on the bar and your eyes on the line.

IsoStrut does away with the conventional main pivot: the stays flex to provide the 80 mm of rear travel, eliminating bearings and linkages to maintain. On the dry courses around Béziers, where loops string together accelerations and roots, this measured travel keeps the bike lively while sparing your lower back.

Which Supercaliber should you choose?

Our take: 10.28 kg in M is 300 g less than the 9.9 XTR Di2 and more than a kilo under the 9.8 X0 AXS. Flight Attendant and the Kovee RSL carbon wheels make all the difference; if electronic suspension does not appeal to you, the 9.9 XTR Di2 keeps the same frame.

Your questions

Why buy from LVR Cycles? As a Trek dealer in Béziers, we calibrate the Flight Attendant, set sag and rebound to your weight and update all the AXS firmware before handover.

Please note that the specifications may be changed without prior notice by the manufacturer, based on the availability of components and other factors.