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 aluminum frame, a RockShox Judy SL 100mm 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 1x12 drivetrain with a wide-range cassette.
The final word
With 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.
Why 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
- Sizes X-Small – Small: 27.5-inch
- Sizes Medium – XX-Large: 29-inch
|D. Effective Top Tube||54.4cm||55.5cm||60.1cm||61.7cm||63.7cm||65.8cm||67.2cm|
|E. Head Tube Angle||69.3°||69.3°||69.5°||69.5°||69.5°||69.5°||69.5°|
|F. Head Tube Length||9cm||9cm||9cm||9cm||10cm||12cm||12cm|
|G. Seat Tube Angle||73.5°||73.5°||71.9°||71.9°||71.9°||71.9°||71.9°|
|H. Seat Tube Length||34.3cm||36.8cm||41.9cm||44.4cm||47cm||52.1cm||55.9cm|
|I. Bottom Bracket Height||29.2cm||30.2cm||31.1cm||31cm||31cm||31cm||31.1cm|
|J. Bottom Bracket Drop||5.8cm||4.8cm||5.8cm||5.8cm||5.8cm||5.8cm||5.8cm|
|K. Fork Rake/Offset||4.2cm||4.2cm||4.2cm||4.2cm||4.2cm||4.2cm||4.2cm|
|O. Chainstay Length||42.5cm||42.5cm||43.8cm||43.8cm||43.8cm||43.8cm||43.8cm|
Due to supply-chain issues, Specs are subject to change without notice.
|Frame||Alpha Gold Aluminum, tapered head tube, internal derailleur & dropper post routing, rack & kickstand mount, Boost141|
|Fork||RockShox Judy SL, Solo Air spring, TurnKey lockout, tapered steerer, 42mm offset, Boost110|
|Headset||Semi-integrated, loose ball bearing, 1-1/8" top, 1.5" bottom|
Front: 110 x 15mm thru axle
Rear: 141 x 5mm QR
|Rims/Wheels||Bontrager Kovee, double-wall, Tubeless Ready, 23mm width, presta valve|
Front: Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
Rear: Formula DCL-141Q, sealed bearing, 6-bolt, Shimano 10 freehub, Boost141
|Spokes||14g stainless steel|
Size XS, S: Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60tpi, 27.5 x 2.35"
Size M, M/L, L, XL, XXL: Maxxis Ardent Race, tubeless, EXO casing, folding bead, 60tpi, 29 x 2.35"
|Crankset||Shimano MT511, 30T steel ring, Boost (52mm chainline)|
|Bottom Bracket||Shimano SM-BB52, 73mm, threaded external bearing|
|Chain||Shimano Deore M6100, 12 speed|
|Rear Derailleur||SRAM SX Eagle|
|Cassette/Rear Cogs||Shimano Deore M6100, 10-51, 12 speed|
|Shifters||Shimano Deore M6100, 12 speed|
|Handlebars||Bontrager alloy, 31.8mm, 5mm rise|
|Tape/Grips||Bontrager XR Trail Comp, nylon lock-on|
|Stem||Bontrager Elite, 31.8mm, Blendr compatible, 7 degree|
|Brakes||Shimano MT200 hydraulic disc w/Shimano RT26, 6-bolt rotors|
|Pedals||VP-536 nylon platform|
|Saddle||Bontrager Arvada, steel rails, 138mm width|
|Seat Post||Bontrager alloy, 31.6mm, 12mm offset|
* Subject to change without notice.
|Satin Lithium Grey / Medium / 29-inch||601842581827||5259717||BIK486578582|
|Satin Lithium Grey / Medium/Large / 29-inch||601842581810||5259718||BIK483429202|
|Satin Lithium Grey / Large / 29-inch||601842581803||5259719||BIK485564022|
|Satin Lithium Grey / X-Large / 29-inch||601842581797||5259720||BIK484536762|