Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.
Trek X-Caliber 9 Mountain Bike
The X-Caliber 9 is the ideal choice if you're all about speed and distance, craving a fast XC bike to conquer more trails in less time. Whether you're a seasoned racer or aspiring to compete, this hardtail delivers with its lightweight aluminum frame, RockShox Recon Gold RL100 mm suspension air fork, and Shimano XT/SLX 1x12 drivetrain for efficient climbing. Tubeless-ready wheels with wider Boost141 hubs ensure durability and better tire clearance, while the included dropper post enhances control on descents. Perfect for those with a racing pedigree or a thirst for epic trail adventures, the X-Caliber 9 offers speed, agility, and efficiency for every rider.
Technical Specification
| Frame | Alpha Gold Aluminium, tapered head tube, internal derailleur and dropper post routing, rack and kickstand mount, Boost141, 5 mm QR |
| Fork Size | XS , S RockShox Recon Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 37 mm offset, Boost110, 15 mm Maxle Stealth, 100 mm travel Size M , ML , L , XL , XXL RockShox Recon Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 42 mm offset, Boost110, 15 mm Maxle Stealth, 100 mm travel Max compatible fork travel |
| Hub front | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru axle |
| Hub rear | Bontrager alloy, sealed bearing, 6-bolt, Shimano MicroSpline freehub, Boost141, 5 mm QR |
| Rim Size | XS , S Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve |
| Size | M , ML , L , XL , XXL Bontrager Kovee, double-wall, Tubeless-Ready, 28-hole, 23 mm width, Presta valve |
| Size | M , ML , L , XL , XXL Bontrager Kovee, double-wall, Tubeless-Ready, 32-hole, 23 mm width, Presta valve |
| Tyre Size | XS , S Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60 tpi, 27.5x2.35" |
| Size | M , ML , L , XL , XXL Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60 tpi, 29x2.35" |
| Tyre part | Bontrager TLR sealant, 180 ml/6 oz |
| Rim strip | Bontrager TLR |
| Max tyre size | Frame |
| Shifter | Shimano SLX M7100, 12-speed |
| Rear derailleur | Shimano XT M8100, long cage |
| Crank Size | XS , S , M Shimano MT611, 30T steel ring, alloy spider, 52 mm chainline, 170 mm length |
| Size | ML , L , XL , XXL Shimano MT611, 30T steel ring, alloy spider, 52 mm chainline, 175 mm length |
| Bottom bracket Size | XS , S , M , ML , L , XL , XXL Shimano SM-BB52, 73 mm, threaded external bearing |
| Size | XS , S , M , ML , L , XL , XXL Shimano BB-MT501 BSA |
| Cassette | Shimano SLX M7100, 10-51T, 12-speed |
| Chain | Shimano SLX M7100, 12-speed |
| Pedal | VP-536 nylon platform |
| Max. chainring size | 1x |
| Saddle | Bontrager Arvada, steel rails, 138 mm width |
| Seatpost | TranzX JD-YSP18 |
| Handlebar | Bontrager alloy, 31.8 mm, 5 mm rise |
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| Stem | Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree |
| Head set | Semi-integrated, sealed cartridge bearing, alloy cups, 1-1/8" top, 1.5" bottom |
| Brake | Shimano hydraulic disc, MT4100 lever, MT410 calliper |
| Weight | M - 12.75 kg / 28.11 lbs |
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |
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. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
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 Sizing
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