2025 Trek Supercaliber SLR 9.9 Flight Attendant Gen 2

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  • Regular price $21,999.00

Supercaliber SLR 9.9 Flight Attendant Gen 2 is an ultralight XC mountain bike built with the top components for race day. Its SLR Mountain Carbon frame is as light as it is meticulous, with a high modulus lay-up that gives you all the stiffness you crave and none of the weight. It’s equipped with a 110 mm fork and 80 mm IsoStrut shock with Flight Attendant tech that delivers free speed with non-stop suspension adjustments as you ride. It's all topped off with carbon wheels, a carbon cockpit and SRAM's lightest wireless direct-mount transmission.

Frame SLR OCLV Mountain Carbon, IsoStrut, UDH, 80 mm travel
Fork RockShox SID SL Ultimate, Flight Attendant Race Day damper, Stealth DebonAir spring, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 110 mm travel
Shock Trek IsoStrut, RockShox SIDLuxe, Flight Attendant RL3 damper
Max compatible fork travel 120mm, min 100mm

Wheel front Bontrager Kovee RSL, OCLV Mountain Carbon, Tubeless Ready, CentreLock, Boost110, 15 mm thru axle, 29"
Wheel rear Bontrager Kovee RSL, OCLV Mountain Carbon, Tubeless Ready, CentreLock, Boost148, 12 mm thru axle, 29"
Skewer rear Bontrager Switch thru axle, removable lever
Tyre Pirelli Scorpion XC, Tubeless-Ready, Team Edition Pro Wall, aramid bead, 120 tpi, 29x2.20"
Tyre part Bontrager TLR sealant, 180 ml/6 oz
Rim strip Bontrager TLR
Max tyre size Frame: 29x2.40", Fork: See manufacturer

Battery SRAM eTap battery pack (with charger)

Rear derailleur SRAM XX SL Eagle AXS, T-Type
*Crank Size: S, M
SRAM XX SL, Flight Attendant, DUB Wide, 34T alloy ring, 55 mm chainline, 170 mm length
Size: ML, L, XL
SRAM XX SL, Flight Attendant, DUB Wide, 34T alloy ring, 55 mm chainline, 175 mm length
Bottom bracket SRAM DUB, 92 mm, PressFit
Cassette SRAM Eagle XS-1299, T-Type, 10-52, 12-speed
Chain SRAM XX Eagle, T-Type, 12-speed
Max. chainring size 1x: 38T, min 30T

Saddle Aeolus RSL, carbon rails, 145 mm width
*Seatpost Size: S
RockShox Reverb AXS, 100 mm travel, wireless, 31.6 mm, 340 mm length
Size: M, ML, L, XL
RockShox Reverb AXS, 150 mm travel, wireless, 31.6 mm, 440 mm length
*Handlebar/stem (integrated) Size: S, M, ML
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0 mm handlebar rise, 750 mm width, -13-degree stem rise, 70 mm length
Size: L
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0 mm handlebar rise, 750 mm width, -13-degree stem rise, 80 mm length
Size: XL
Bontrager RSL Integrated handlebar/stem, OCLV Carbon, 0 mm handlebar rise, 750 mm width, -13-degree stem rise, 90 mm length
Grips ESI Chunky
Head set FSA IS-2, 1-1/8" top, 1.5" bottom
Brake SRAM Level Ultimate 4-piston hydraulic disc
Brake rotor SRAM CentreLine X, CentreLock, round edge, 160 mm
Rotor size Max brake rotor sizes - Frame: 160mm, Fork: see fork manufacturer

Weight M - 10.11 kg / 22.29 lbs (with TLR sealant, no tubes)
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, materials and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice.

Bike and frame weights are based on pre-production painted frames at time of publication. Weights may vary in final production.