X-Caliber 8 is a cross-country mountain bike made for fast laps and long days on the trail. It’s built with special attention to value and the parts that make the biggest difference in performance. A 1x Shimano drivetrain, RockShox fork and hydraulic disc brakes make it a great choice for new mountain bikers and XC racers searching for fast, fun, singletrack adventure.
It’s right for you if…
You’re looking for a fast mountain bike for singletrack – one that’s fully capable of taking on races, marathons and competitive group rides. You want something that is reliable and fun with dependable, lightweight parts.
The tech you get
A lightweight aluminium frame, a RockShox Judy SL 100 mm suspension fork with a TurnKey lockout and an air spring that’s lighter and more adjustable than a coil spring, tubeless-ready wheels with Boost141 hub spacing and a Shimano Deore 1×12 drivetrain with a wide-range cassette.
The final word
With the X-Caliber 8, you’re getting a performance frame paired with performance parts, like a RockShox air fork and 1x Shimano Deore drivetrain. Plus, it’s equipped with durable, lightweight alloy rims that save weight and are easy to upgrade to tubeless.
The Walkthrough
favorite_borderWhy you’ll love it
- It has the price of a more basic hardtail, but the parts and performance of a more expensive one
- The frame is fully compatible with higher-end parts, like race wheels and a dropper post, if you ever find the need to upgrade
- Smart Wheel Sizing means you’ll get the fastest wheel that fits (29˝ wheels on larger frames, 27.5˝ wheels on smaller frames)
- The 1x drivetrain delivers a wide range of gearing with the simplicity of a single shifter
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: S RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, Boost110, 15 mm Maxle Lite, 100 mm travel |
| Size: M, M/L, L, XL, XXL RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, Boost110, 15 mm Maxle Stealth, 100 mm travel |
|
| 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 | 14 g stainless steel |
| *Tyre | Size: S Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60 tpi, 27.5×2.35″ |
| Size: M, M/L, L, XL, XXL Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60 tpi, 29×2.35″ |
|
| Tyre part | Bontrager TLR sealant, 180 ml/6 oz |
| Rim strip | Bontrager TLR |
| Max tyre size | Frame: 27.5×2.80″ or 29×2.40″ Fork: See manufacturer |
| Shifter | Shimano Deore M6100, 12-speed |
|---|---|
| Rear derailleur | Shimano XT M8100, long cage |
| *Crank | Size: S, M Shimano MT511, 30T steel ring, 52 mm chainline, 170 mm length |
| Size: M/L, L, XL, XXL Shimano MT511, 30T steel ring, 52 mm chainline, 175 mm length |
|
| Bottom bracket | Shimano SM-BB52, 73 mm, threaded external bearing |
| Cassette | Shimano Deore M6100, 10-51, 12-speed |
| Chain | Shimano Deore M6100, 12-speed |
| Pedal | VP-536 nylon platform |
| Max. chainring size | 32T |
| Saddle | Bontrager Arvada, steel rails, 138 mm width |
|---|---|
| *Seatpost | Size: 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: M/L, L, XL, XXL Bontrager alloy, 31.6 mm, 12 mm offset, 400 mm length |
|
| *Handlebar | Size: S, M Bontrager alloy, 31.8 mm, 5 mm rise, 720 mm width |
| Size: M/L, L, XL, XXL Bontrager alloy, 31.8 mm, 15 mm rise, 750 mm 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, M/L Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 70 mm length |
|
| Size: 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, loose ball bearing, 1-1/8″ top, 1.5″ bottom |
| Brake | Shimano MT200 hydraulic disc |
| *Brake rotor | Size: S, M, M/L, L, XL, XXL Shimano RT26, 6-bolt,160 mm |
| Size: L, XL, XXL Shimano RT26, 6-bolt,180 mm |
| Weight | M – 13.05 kg / 28.78 lbs |
|---|---|
| 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.
Sizing TREK Mountain Bikes
| Size | S, M, L, XL, M/L |
|---|
Professionally packed and fast shipping
Our long-standing relationships with UPS FedEx DHL and other global carriers gives us the ability to provide an array of shipping services. Our warehouse employees will pack all goods to our exacting requirements. Prior to shipping, your goods will be thoroughly examined and safely secured. We ship to thousands clients every day from all over the world. This is an indication of our determination to become the largest online retailer globally. These warehouses are located in Europe as much as they are in the USA.
Orders with more than one item are assigned processing periods for each item.
We will inspect each and every one of the products before they are shipped. The majority of orders are shipped within 48 hrs. The delivery time will be between 3-7 days.
Returns
The stock is constantly changing and not fully managed by us because of the involvement of many entities, including the factory as well as our warehouse. Therefore, the actual inventory could fluctuate at any moment. Please understand it may happen that your order may be out of stock after your order has been made.
Our policy is valid for 30 days. If it's been more 30 days since you've purchased your item and we're unable to offer you a complete refund or exchange.
To be eligible for a return, your product must be unopened and in the same condition that you received it. It must also be returned in its original packaging.
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