2024 TREK SUPERCALIBER SLR 9.9 X0 AXS GEN 2

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  • Regular price $16,999.99

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The Supercaliber SLR 9.9 X0 AXS is an ultra-light XC mountain bike that's 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. XC courses get rowdier every year, so it's equipped with a 110 mm fork and 80 mm of IsoStrut rear suspension to smooth your roll without dropping pedalling efficiency. It's all topped off with carbon wheels, a carbon cockpit and SRAM's wireless direct-mount X0 transmission.

It's right for you if...

You're in it for the podium. You want an ultra-light, ultra-capable XC machine that's proven on the world stage. You want to sprint up climbs and hammer to the finish, and feel good doing it thanks to 80 mm of IsoStrut rear suspension. From wheels to cockpit, you crave carbon and you want the most meticulous high-mod carbon lay-up we offer on a mountain bike.

The tech you get

A featherweight, high-modulus SLR OCLV Mountain Carbon frame with modern XC geometry. 110 mm of front suspension from a RockShox SID Ultimate fork with DebonAir spring and Charger Race Day damper and 80 mm of IsoStrut rear suspension from a RockShox SIDLuxe shock – all with remote lockout. A fully wireless SRAM X0 AXS 12-speed electronic transmission, Bontrager Kovee Pro 30 carbon wheels, carbon Bontrager RSL Integrated bar/stem combo, RockShox Reverb AXS dropper post and SRAM Level Silver 4-piston hydraulic disc brakes.

The final word

The Supercaliber SLR 9.9 X0 AXS is bred for racing and comes from a pedigree of champions. You get our top carbon XC full-suspension frame dripping with carbon components and a fully-wireless group set that keeps going after the cows come home.

Why you'll love it

  1. You get a 110 mm fork and 80 mm of IsoStrut rear suspension that partners with slacker, capable geometry for handling the roots and rocks of modern XC courses
  2. You don't have to compromise stiffness for weight savings thanks to the SLR OCLV Mountain Carbon frame that's intensely light, stiff and responsive
  3. IsoStrut gives you tunable, damped suspension without missing out on efficiency for hammering up climbs at top speed
  4. Pivotless seat stays save on weight and actively bend to help soak up trail chatter
  5. Cream-of-the-crop components, like a RockShox SID Ultimate fork and fully wireless direct-mount SRAM X0 AXS transmission give you the performance advantage

*Please note – spec applies to all sizes unless listed separately


Frame SLR OCLV Mountain Carbon, IsoStrut, UDH, 80 mm travel
Frame set SLR OCLV Mountain Carbon, IsoStrut, UDH, 80 mm travel
Fork RockShox SID Ultimate, DebonAir spring, Charger Race Day damper, dual remote lockout, tapered steerer, 44 mm offset, Boost110, 15 mm Maxle Stealth, 110 mm travel
Shock Trek IsoStrut, RockShox SIDLuxe, 2-position remote damper
Max compatible fork travel 120 mm (533 mm axle-to-crown)

Wheel front NEW Bontrager Kovee Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15 mm thru axle, 29"
Wheel rear NEW Bontrager Kovee Pro 30 carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12 mm thru axle, 29"
Skewer rear Bontrager Switch thru axle, removable lever
Tyre part Bontrager TLR sealant, 180 ml/6 oz
Max tyre size Frame: 29x2.40", Fork: See manufacturer

Battery SRAM eTap battery pack (with charger)

Shifter SRAM AXS POD Ultimate, paired with dropper
Rear derailleur SRAM X0 Eagle AXS, T-Type
*Crank Size: S, M
SRAM X0 Eagle, T-Type, DUB, 34T ring, 55 mm chain line, 170 mm length
Size: M/L, L, XL
SRAM X0 Eagle, T-Type, DUB, 34T ring, 55 mm chain line, 175 mm length
Bottom bracket SRAM DUB, 92 mm, PressFit
Cassette SRAM Eagle XS-1295, T-Type, 10-52, 12-speed
Chain SRAM X0 Eagle, T-Type, 12-speed
Max. chainring size 1x: 38T, min 30T

Saddle Bontrager Aeolus Elite, austenite rails, 145 mm width
*Seatpost Size: S
RockShox Reverb AXS, 100 mm travel, wireless, 31.6 mm, 340 mm length
Size: M, M/L, L, XL
RockShox Reverb AXS, 150 mm travel, wireless, 31.6 mm, 440 mm length
*Handlebar/stem (integrated) Size: S, M, M/L
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
Head set FSA IS-2, 1-1/8" top, 1.5" bottom
Brake SRAM Level Silver 4-piston hydraulic disc
*Brake rotor Size: S, M, M/L, L, XL
SRAM HS2, 6-bolt, 160 mm
Size: S, M, M/L, L, XL
SRAM HS2, 6-bolt, 180mm
Rotor size Max brake rotor sizes: 160 mm front and rear


Weight M - 11.00 kg / 24.26 lb (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.