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It's right for you if...
You're new to mountain biking and want a high-value bike that's perfect for local XC trails and even racing. You want to invest in the parts that make a difference in performance—frame, suspension, and brakes—and want a bike you won't immediately outgrow as your skills advance.
The tech you get
A lightweight Alpha Gold Aluminum frame, a RockShox 30 Silver 100mm suspension fork with a lockout, a dependable 2x9 Shimano drivetrain, Shimano hydraulic disc brakes, and wider Boost141 hubs for increased wheel strength and better tire clearance. This hub size is standard for higher-end wheelsets, making it easy to upgrade your wheels if you're looking for a fast way to increase performance.
The final word
X-Caliber 7 is a great cross country mountain bike at a great value. It has the same features found on higher-end bikes—like internal cable routing, dropper post compatibility, a tapered head tube, and Boost hub spacing—all on a platform that's easy to upgrade down the line.
The Walkthrough
favorite_borderWhy you'll love it
- It gets you into the world of cross country riding and racing at a great price, and it's a mountain bike that can grow with you as your skills advance
- The sleek internal cable routing gives you clean looks, protects your cables, and makes it easy to upgrade to a dropper post for even more capability
- Smart Wheel Sizing means you'll get the fastest wheel that fits (29˝ wheels on larger frames, 27.5˝ wheels on smaller frames)
- The RockShox air fork has a rebound adjust and can be tuned to the rider’s weight, and it’s way higher quality than what you’d normally get on an MTB at this price
How to: Remove and install wheels
From transporting on a rack to fixing a flat, sometimes those wheels need to come off your bike. Keep watching to learn how to safely remove and install wheels that use a quick release system.
Watch the video
How to: Wash your bike
A clean bike is a happy bike, but washing your ride is a bit more complicated than a quick spray with the hose or a joyride through your local car wash. Follow our step-by-step process and you’ll learn the dos and don’ts of keeping your bike in tip-top shape!
Watch the video
How to: Pump your tires
Setting your bike's tire pressure correctly will give you a more comfortable ride with better grip and handling. Even better, it can help prevent flats
Watch the video
How to: Fix a flat tire
Flat? Fixed. Our simple how-to video will show you how to get back on two wheels in no time flat.
Watch the videoFeatures
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.
High tech frame
The Alpha Gold Aluminum 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 out back.
Smart Wheel Size
The right wheel size paired with your frame size gives you the perfect combination of responsiveness and control.
Suspension lockout
Locked suspension means your fork remains inactive, increasing pedaling efficiency. Perfect for extended road sections where efficiency is more important than bump absorption.
Blendr stem
Bontrager stem technology lets you clip your gear directly to the stem for clean looks, maximum user friendliness.
Learn more
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.
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.
Specifications
*spec applies to all sizes unless otherwise noted
| Frame | Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, rack & kickstand mount, Boost141, 5mm QR |
|---|---|
| *Fork |
Size:
S RockShox 30 Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, tapered steerer, 42mm offset for 27.5'' wheel, 100mm QR, 100mm travel |
|
Size:
M, M/L, L, XL RockShox 30 Silver, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, tapered steerer, 46mm offset for 29'' wheel, 100mm QR, 100mm travel |
|
| Max compatible fork travel | 120mm (XS: 100mm) |
| Front hub | Formula DC-20, alloy, 6-bolt, 5x100 mm QR |
|---|---|
| Rear hub | Formula DC-2241, alloy, 6-bolt, Shimano 8/9/10 freehub, Boost141, 5mm QR |
| Rim | Bontrager Connection, double-wall, 32-hole, 20mm width, presta valve |
| Spokes | 14 g stainless steel, black |
| *Tire |
Size:
S Bontrager XR2 Comp, wire bead, 30 tpi, 27.5x2.20'' |
|
Size:
M, M/L, L, XL Bontrager XR2 Comp, wire bead, 30 tpi, 29x2.20'' |
|
| Max tire size | 27.5x2.80" or 29x2.40" |
| *Shifter |
Size:
S, M, M/L, L, XL Shimano Acera M3000, 9-speed |
|---|---|
|
Size:
S, M, M/L, L, XL Shimano Acera M3000, 2 -speed |
|
| Front derailleur | Shimano Alivio M4020, e-type, side swing, front pull |
| Rear derailleur | Shimano Alivio M4000, long cage, 36T max cog |
| *Crank |
Size:
S Shimano MT210, 36/22, Boost, 170mm length |
|
Size:
M, M/L, L, XL Shimano MT210, 36/22, Boost, 175mm length |
|
| Cassette | Shimano HG200, 11-36, 9-speed |
| Chain | KMC X9 |
| Pedal | VP-536 nylon platform |
| Max chainring size | 32T |
| Saddle | Bontrager Arvada, steel rails, 138 mm width |
|---|---|
| *Seatpost |
Size:
S Bontrager alloy, 31.6mm, 12mm offset, 330mm length |
|
Size:
M Bontrager alloy, 31.6mm, 12mm offset, 360mm length |
|
|
Size:
M/L, L, XL Bontrager alloy, 31.6mm, 12mm offset, 400mm length |
|
| Handlebar | Bontrager alloy, 31.8mm, 5mm rise, 720mm width |
| Grips | Bontrager XR Trail Comp, nylon lock-on |
| *Stem |
Size:
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:
M/L, L Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 80 mm length |
|
|
Size:
XL Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length |
|
| Headset | Semi-integrated, loose ball bearing, 1-1/8'' top, 1.5'' bottom |
| Brake | Shimano MT200 hydraulic disc |
| *Brake rotor |
Size:
S, M, M/L, L, XL Shimano RT26, 160mm, 6-bolt |
|
Size:
L, XL Shimano RT26, 180mm, 6-bolt |
| Weight | M - 13.80 kg / 30.42 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 & fit
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 authorized Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.
Rider Height
Inseam
XS
137.0 - 155.0 cm
4'5.9" - 5'1.0"
64.0 - 73.0 cm
25.2" - 28.7"
S
153.0 - 166.5 cm
5'0.2" - 5'5.6"
72.0 - 79.0 cm
28.3" - 31.1"
M
161.0 - 172.0 cm
5'3.4" - 5'7.7"
76.0 - 81.0 cm
29.9" - 31.9"
M/L
165.5 - 179.0 cm
5'5.2" - 5'10.5"
77.0 - 84.0 cm
30.3" - 33.1"
L
177.0 - 188.0 cm
5'9.7" - 6'2.0"
83.0 - 88.0 cm
32.7" - 34.6"
XL
186.0 - 196.0 cm
6'1.2" - 6'5.2"
87.0 - 92.0 cm
34.3" - 36.2"
2XL
195.0 - 203.0 cm
6'4.8" - 6'7.9"
92.0 - 95.0 cm
36.2" - 37.4"
All measurements provided in cm unless otherwise stated.
| Frame size number | Frame size letter | 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 | 34.3 | 73.5° | 73.5° | 9.0 | 69.3° | 54.3 | 29.2 | 5.8 | 42.5 | 4.2 | 8.8 | 103.6 | 69.8 | 37.6 | 56.5 |
| 15.5 | S | 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 | 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 | 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 | 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 | 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 | 62.6 |
| 23.0 | XXL | 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 | 62.6 |