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It's right for you if...
You measure your rides in speed and distance, and want a fast XC bike that will help you cover more trail in less time. You race, or you could see yourself getting into racing, so you want a hardtail with competition-level parts that can give you an advantage on the trail.
The tech you get
A lightweight Alpha Gold Aluminium frame, a RockShox Judy Silver 100 mm suspension air fork with a remote lockout and a Shimano XT/SLX 1x12 drive train with a wide range of gears for easier climbing. Plus, tubeless-ready wheels with wider Boost141 hubs for increased wheel strength and better tyre clearance.
The final word
The X-Caliber 9 is a speedy, nimble and efficient XC hardtail that's perfect for riders with a racing pedigree and anyone who dreams of covering epic distances out on the trail.
The Walkthrough
favorite_borderWhy you'll love it
- It's a great bike for someone who's just getting into serious racing: you get high-end XC parts on an incredible frame with enough cash left over for entry fees
- There's nothing as sweet as a silent ride: the clutch rear derailleur prevents chain slap, even in the rough
- The frame is fully compatible with higher-end parts, like race wheels and a dropper post, if you ever find the need to upgrade
- A remote lockout lets you lock out the fork on flats without taking your hands off the bars
- The 1x drive train delivers a wide range of gearing with the simplicity of a single shifter
Features
High tech frame
The Alpha Gold Aluminuum frame is packed with features that make your ride better. A tapered head tube gives you more precise, confident handling on the front end, while Boost 141 rear hub spacing gives you shorter chainstays for more nimble handling at the back.
Built for speed
X-Caliber is a classic XC hardtail with quick-handling geometry, weight-conscious parts and just enough suspension to take the edge off bumps. These models are built for efficiency, making them great for racers or anyone else who wants to cover more ground in less time.
Smart Wheel Size
The right wheel size paired with your frame size gives you the perfect combination of responsiveness and control.
Remote lockout
Handlebar-mounted controls let you lock out your suspension on the fly as you switch terrains.
Internal cable routing
We route shift and brake cables through the frame to keep things clean and simple. And it looks great, too.
Blendr stem
Bontrager stem technology lets you clip your gear directly to the stem for clean looks and maximum user friendliness.
Learn more
Rack mounts
Going for a long ride? Rack mounts make carrying accessories a breeze.
Rear kickstand mount
Chainstay mounts make it easy to install a rear kickstand that stays out of your way and supports bikes of all sizes. No more laying or leaning.
Internal dropper compatible
Internal routing ports make it easy to add a dropper post upgrade that lets you lower your saddle on the fly so it's out of your way for tricky sections of trail.
Specifications
*spec applies to all sizes unless otherwise noted
| Frame | Alpha Gold Aluminium, tapered head tube, internal derailleur and dropper post routing, rack and kickstand mount, Boost141, 5 mm QR |
|---|---|
| *Fork |
Size:
XS RockShox Judy Silver, Solo Air, TurnKey remote lockout, tapered steerer, Boost110, 15mm Maxle, 80mm travel |
|
Size:
S RockShox Judy Silver, Solo Air, TurnKey remote lockout, tapered steerer, Boost110, 15mm Maxle, 100mm travel |
|
|
Size:
M , ML , L , XL , XXL RockShox Judy Silver, Solo Air spring, TurnKey remote lockout, tapered steerer, Boost110, 15 mm Maxle Lite, 100 mm travel |
|
| Suspension lever | RockShox PopLoc |
| Max compatible fork travel | 120mm (XS: 100mm) |
| 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 | Bontrager Kovee, double-wall, Tubeless Ready, 28-hole, 23 mm width, Presta valve |
| Spokes | 15 g stainless steel |
| *Tyre |
Size:
XS , S Bontrager XR3 Comp, wire bead, 30 tpi, 27.5x2.20'' |
|
Size:
XS , S Bontrager XR3 Comp, wire bead, 30 tpi, 27.5x2.20" |
|
|
Size:
M , ML , L , XL , XXL Bontrager XR3 Comp, wire bead, 30 tpi, 29x2.20" |
|
| Max tyre size | Frame: 27.5x2.80" or 29x2.40" Fork: See manufacturer |
| Shifter | Shimano SLX M7100, 12-speed |
|---|---|
| Rear derailleur | Shimano XT M8100, long cage |
| *Crank |
Size:
XS , S Shimano MT611, 30T steel ring, alloy spider, 52 mm chainline, 170 mm length |
|
Size:
XS , S Shimano MT610, 30T steel ring, Boost (52mm chainline), 170mm |
|
|
Size:
M , ML , L , XL , XXL Shimano MT611, 30T steel ring, alloy spider, 52 mm chainline, 175 mm length |
|
|
Size:
M , ML , L , XL , XXL Shimano MT610, 30T steel ring, Boost, 175 mm |
|
| Bottom bracket | Shimano SM-BB52, 73 mm, threaded external bearing |
| Cassette | Shimano SLX M7100, 10-51, 12-speed |
| Chain | Shimano SLX M7100, 12-speed |
| Pedal | VP-536 nylon platform |
| Max. chainring size | 32T |
| Saddle | Bontrager Arvada, steel rails, 138 mm width |
|---|---|
| *Seatpost |
Size:
XS , S Bontrager alloy, 31.6 mm, 12 mm offset, 330 mm length |
|
Size:
M Bontrager alloy, 31.6 mm, 12 mm offset, 360 mm length |
|
|
Size:
ML , L , XL , XXL Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length |
|
| *Handlebar |
Size:
XS Bontrager alloy, 31.8 mm, 5 mm rise, 690 mm width |
|
Size:
S , M , ML , L , XL , XXL Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width |
|
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| *Stem |
Size:
XS , S Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 60 mm length |
|
Size:
M Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length |
|
|
Size:
ML , L Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length |
|
|
Size:
XL , XXL Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length |
|
| Head set | Semi-integrated, sealed cartridge bearing, alloy cups, 1-1/8" top, 1.5" bottom |
| *Brake |
Size:
XS , S , M , ML , L , XL , XXL Shimano hydraulic disc, MT4100 lever, MT410 calliper |
|
Size:
XS , S , M , ML , L , XL , XXL Shimano hydraulic disc, MT401 lever, MT400 caliper |
|
| *Brake rotor |
Size:
XS , S , M , ML , L , XL , XXL Shimano RT56, 6-bolt, 180 mm |
|
Size:
XS , S , M , ML , L , XL , XXL Shimano RT56, 6-bolt, 160 mm |
| Weight | M - 13.38 kg / 29.50 lbs (with tubes) |
|---|---|
| Weight limit | This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb). |
Sizing & Tech
Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.
All measurements provided in cm unless otherwise stated.
| Frame size number | Frame size letter | Wheel size | A — Seat tube | B — Seat tube angle | Effective seat tube angle | C — Head tube length | D — Head angle | E — Effective top tube | F — Bottom bracket height | G — Bottom bracket drop | H — Chainstay length | I — Offset | J — Trail | K — Wheelbase | L — Standover | M — Frame reach | N — Frame stack |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 13.5 | XS | 27.5" | 34.3 | 73.5° | 73.5° | 9.0 | 69.3° | 54.4 | 29.2 | 5.8 | 42.5 | 4.2 | 8.8 | 103.6 | 69.8 | 37.6 | 56.5 |
| 15.5 | S | 27.5" | 36.8 | 73.5° | 73.5° | 9.0 | 69.3° | 55.5 | 30.2 | 4.8 | 42.5 | 4.2 | 8.8 | 105.3 | 72.4 | 38.5 | 57.4 |
| 17.5 | M | 29" | 41.9 | 71.9° | 73.0° | 9.0 | 69.5° | 60.1 | 31.1 | 5.8 | 43.8 | 4.2 | 9.4 | 110.9 | 74.8 | 41.8 | 59.8 |
| 18.5 | ML | 29" | 44.4 | 71.9° | 73.0° | 9.0 | 69.5° | 61.7 | 31.0 | 5.8 | 43.8 | 4.2 | 9.4 | 112.5 | 75.7 | 43.4 | 59.8 |
| 19.5 | L | 29" | 47.0 | 71.9° | 73.0° | 10.0 | 69.5° | 63.7 | 31.0 | 5.8 | 43.8 | 4.2 | 9.4 | 114.5 | 75.7 | 45.1 | 60.8 |
| 21.5 | XL | 29" | 52.1 | 71.9° | 73.0° | 12.0 | 69.5° | 65.8 | 31.0 | 5.8 | 43.8 | 4.2 | 9.4 | 116.7 | 76.8 | 46.6 | 62.7 |
| 23.0 | XXL | 29" | 55.9 | 71.9° | 73.0° | 12.0 | 69.5° | 67.2 | 31.1 | 5.8 | 43.8 | 4.2 | 9.4 | 118.1 | 80.4 | 48.0 | 62.7 |