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Trek X-Caliber 9 Mountain Bike 2023


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X-Caliber 9 Mountain Bike 2023

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Product ID: 1486771

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Built, Checked, Tuned and Tested

All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.

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Trek X-Caliber 9 Mountain Bike 2023

Trek’s X-Caliber 9 Mountain Bike is a cross country race-ready steed with an efficient, lightweight Alpha Platinum Aluminium chassis, featuring internal cable routing. The RockShox Recon Gold fork adds 100mm of suspension for comfort and control. The travel can be locked out for maximum efficiency when climbing steep hills and opened up again to soak up the rough stuff.

The frame also features an internally routed dropper seatpost that lets you lower your saddle, so it’s out of the way for tricky sections. The 1x Shimano groupset consists of an SLX shifter and wide-ranging 10-51 cassette with an XT rear derailleur to ensure smooth and accurate shifting. The hydraulic disc brakes provide powerful, reliable all-weather performance. Frame size-specific wheels, with the smaller sizes getting 27.5” and the larger sizes 29”, ensure effective control and responsiveness across all sizes.


  • High-end XC parts on an incredible frame perfect for cross country racing
  • The clutch rear derailleur prevents chain slap, even in the rough
  • The 1x drivetrain delivers a wide range of gearing with the simplicity of a single shifter
  • Tubeless-ready wheels with wider Boost141 hubs for increased wheel strength and better tyre clearance
  • The front suspension feature a lockout for increased pedalling efficiency
  • Smart wheel sizing pairs the perfect wheel combination with frame size for better control

Technical Specification

Frame Trek Alpha Gold Aluminium, tapered head tube, internal derailleur and dropper post routing, rack and kickstand mount, Boost141, 5mm QR
Fork RockShox Recon Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, Boost110, 15mm Maxle Stealth, 100mm travel, offset 37mm (XS, S), 42mm (M, ML, L, XL, XXL), maximum compatible fork travel - 120mm (XS - 100mm)
Headset Semi-integrated, sealed cartridge bearing, alloy cups, 1-1/8" top, 1.5" bottom
Bottom Bracket Shimano SM-BB52, 73 mm, threaded external bearing
Stem Bontrager Elite, 31.8mm, Blendr-compatible, 7 degree, length 60mm (XS, S), 70mm (M, ML), 80mm (L), 90mm (XL, XXL)
Handlebar Bontrager alloy, 31.8mm, 5mm rise, width 690mm (XS), 720mm (S, M), 750mm (ML, L, XL, XXL)
Grips Bontrager XR Trail Comp, lock-on
Brakes Shimano hydraulic disc, MT410 calliper, Shimano RT56, 6-bolt, rotor 180mm/160mm
Brake Levers Shimano hydraulic disc, MT4100 lever
Rear Derailleur Shimano XT M8100, long cage, 51T maximum sprocket
Shift Levers Shimano SLX M7100, 12-speed
Cassette Shimano SLX M7100, 10-51, 12-speed
Chain Shimano SLX M7100, 12-speed
Crankset Shimano MT611, 30T steel ring, alloy spider, Boost, length 170mm (XS, S, M), 175mm (ML, L, XL, XXL)
Front Wheel Bontrager Kovee, double-wall, tubeless-ready, 28-hole, 23mm width, Hub - Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru-axle
Rear Wheel Bontrager Kovee, double-wall, tubeless-ready, 28-hole, 23mm width, Hub - Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost141, 5mm QR
Tyres Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60TPI, 27.5" x2.35" (XS, S), 29" x2.35" (M, ML, L, XL, XXL)
Saddle Bontrager Arvada, steel rails, 138mm width
Seatpost TranzX JD-YSP18, 100mm travel (XS, S, M), 130mm (ML, L XL, XXL) internal routing, 31.6mm, length 361mm (XS, S, M), 425mm (ML, L, XL, XXL)
Pedals VP-536 nylon platform
Manufacturer Claimed Weight 12.52 kg / 27.60lbs - size medium (with TLR sealant, no tubes)

Built, Checked, Tuned and Tested

All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.

All bikes collected from our shop, are built, tested and ready to ride.

Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.

If you require any assistance please contact our Customer Care team.

Trek X-Caliber 9 Mountain Bike 2023 Sizing

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