Details
X-Caliber 9 is the top-end model in the X-Caliber family. It's a fully race-ready cross country mountain bike built with parts designed to compete. A RockShox Judy Silver fork with remote lockout, a Shimano drivetrain, and a wide-range cassette make it a great choice for fast singletrack riders who want a great bike that's ready to race right out of the box.
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 Aluminum frame, RockShox Judy Silver fork with remote lockout, Bontrager Kovee wheels, and Boost110 thru axle front hub all work together to give X-Caliber 9 exceptional handling. The Shimano XT/SLX 2x11 drivetrain has smaller jumps between gears and a clutch-equipped rear derailleur to reduce chain noise.
The final word
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.
Why 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 awesome 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
- Front and rear Boost hub spacing opens the door for high-end wheel upgrades
- The 31.6mm seat tube gives you the option to install a dropper post when you want to tackle rowdier terrain

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Pedals sold separately
Specs
Frame | Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, rack & kickstand mount, Boost141, G2 Geometry |
---|---|
Fork | RockShox Judy Silver TK, Solo Air spring, rebound adjust, TurnKey hydraulic lockout, tapered steerer, G2 Geometry w/51mm offset, 100mm travel (13.5: 80mm travel) |
Headset | Semi-integrated, cartridge, 1-1/8" top, 1.5" bottom |
Axles |
Front: Boost 110 Rear: Boost 141 |
Rims/Wheels | Bontrager Kovee 28-hole Tubeless Ready, tubeless rim strips and valves sold separately |
Hubs |
Front: Bontrager sealed bearing, alloy axle Rear: Formula DC2641 sealed bearing |
Tires |
Bontrager XR2 Sizes 15.5 – 15.5: 27.5 x 2.20 Sizes 17.5 – 21.5: 29 x 2.20 |
Crankset | Shimano SLX M7000 |
Chainrings | 36/22 |
Bottom Bracket | Shimano BB52, 73mm |
Chain | KMC X11-1 |
Front Derailleur | Shimano SLX M7020 |
Rear Derailleur | Shimano Deore XT M8000, Shadow Plus |
Cassette/Rear Cogs | Shimano SLX M7000, 11-42, 11 speed |
Shifters | Shimano SLX M7000, 11 speed |
Handlebars | Bontrager alloy, 31.8mm, 5mm rise, 720mm width (13.5: 690mm width) |
Tape/Grips | Bontrager XR Trail Comp, nylon lock-on |
Stem | Bontrager Elite, 31.8mm, 7 degree, Blendr compatible |
Brakes | Shimano MT400 hydraulic disc |
Saddle | Bontrager Arvada |
Seat Post | Bontrager alloy, 2-bolt head, 31.6mm, 12mm offset |
* Subject to change without notice.
Part Numbers
Option | UPC | MPN | Store SKU |
---|---|---|---|
Slate / 15.5-inch / 27.5-inch | 601479853649 | 565679 | XCA21556070E |
Slate / 17.5-inch / 29-inch | 601479853663 | 565681 | XCA19716330E |
Slate / 18.5-inch / 29-inch | 601479853670 | 565682 | XCA19160474E |
Slate / 19.5-inch / 29-inch | 601479853687 | 565683 | XCA19768660E |
Slate / 21.5-inch / 29-inch | 601479853694 | 565684 | XCA19889421E |
Slate / 23-inch / 29-inch | 601479853700 | 565685 | XCA18284299E |
Reviews
Read 3 Reviews
Write a ReviewREVIEW SNAPSHOT®
by PowerReviewsPros
- Components
- Fun to ride
- Front Suspension
- Well designed
- 2 X 10
Best Uses
- Single Track (2)
- Backroads of Tennessee
- Cross Country
- Trails
- Urban Riding
REVIEWS
Reviewed by 3 customers
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Displaying reviews 1-3
Comments:
I love this 2017 Trek X-Caliber 9, 29er. My height is 5 11 1/2. I purchase my bike at NYC Bicycle Habitat. They are good professional people. I had ridden my bike one time so far in Central Park. I enjoyed my ride and had received a lot of good compliments on my new bike. I felt so good and probably did about 7 miles easily. My butt was soar and between my legs. I have to purchase some butt padds tights. I will wear them under my shorts.
Pros
- Solid performer
- Good components
- Fun to ride
- Well designed
Cons
Best Uses
- Single track
- Backroads of Tennessee
Comments:
I've ridden my Trek X-Caliber 9 (2016 model) for just over a year now and absolutely enjoy every minute that I'm on it! I spent a several months researching many different mountain bikes and talked with the guys at Bikers Choice in both Hendersonville, TN, and Mt. Juliet, TN, before making my decision. I have a road bike which I have ridden for nearly 15 years and have put many miles on, but this is my first mountain bike. I am 56 years old, and am 6'4" and my X-Caliber 9 is very comfortable to ride. David at Bikers Choice in Hendersonville was very helpful in the process of determining which bike and size would best suit my needs. I went with the 21.5 frame and I have the seat raised to the max recommended height. I ride primarily on the backroads of Middle Tennessee, but I have also had it on several single track trails and it has handled exceptionally well. I couldn't be more pleased with my choice. In fact, I haven't been back on my road bike since getting my X-Caliber!
Pros
- 29er
- Braking
- Lightweight
- Components
- Front Suspension
- 2 X 10
Cons
Best Uses
- Single Track
- Urban Riding
- Cross Country
- Trails
Comments:
Old guy getting back into again (55). After looking at hybreds, fitness and mountain bikes this puppy fit the bill. Test rode many bikes, many brands and talked with the staff on how I ride the fit was great. At only 5'6" tall the seat post was a little high and could not be lowered because of the accessory attachment bolts took an inch off and now the seat and fit is much improved. The X Caliber 9s'components are great improve over the 8 and well worth the extra $. 100 miles into ownership and I am loving it.
Displaying reviews 1-3