The E-Caliber 9.9 XTR is a light, fun and fast carbon e-MTB. It’s built to ride like a traditional cross-country bike, and it even has the same race-worthy suspension tech as Supercaliber. The sleek and subtle Fazua drive system provides a boost without adding bulk, and you get a spec loaded with high-end parts.
It's right for you if...
You want to ride your heart out on a lightweight e-MTB that rips singletrack just like a regular XC bike, but can give you a leg-saving boost when you want it. You also want the smoothest, lightest, most precise parts spec, filled with carbon and cutting-edge tech like our IsoStrut shock.
The tech you get
A lightweight, full OCLV Mountain Carbon frame with 60 mm of travel, a 120 mm FOX Factory 34 Step-Cast fork, dual remote lockout and Trek's exclusive lightweight IsoStrut FOX Factory shock. A Fazua Evation motor and 250 Wh battery that can assist up to 20 mph (25 km/h in Europe) when it's on, and gives zero drag when it's off, plus a handlebar-mounted Fazua Remote FX controller. A Shimano XTR drive train, a Bontrager XXX carbon seat post and Kovee XXX 30 carbon wheels.
The final word
Our top-shelf E-Caliber is light, fast and built to rip. It rides like an XC race bike – like a Supercaliber, in fact – until you decide you want a little boost to scramble up a climb or put in a few extra laps.
Why you'll love it
You get a helping hand from the motor on climbs and long rides, but it's a more natural-feeling assist that gives you an overall experience that's closer to riding an analogue bike than a typical e-MTB
The drive system, including the motor, is easily removable. Just take it out, pop on the included cover, and you’ll have a standard mountain bike that weighs 2.9 kg less than before
IsoStrut gives you just enough rear suspension for cross-country traction and comfort with less weight and more efficiency
Pivotless seat stays save on weight and actively bend to help soak up trail chatter
Wider Kovee XXX 30 wheels provide better tire support so you can run lower pressure and get more traction
Specifications
Frameset
Frame
OCLV Mountain Carbon main frame & stays, IsoStrut, tapered head tube, Knock Block, Control Freak internal routing, Boost148, 60mm travel
Fork
Fox Factory 34 Step-Cast, Float EVOL air spring, FIT4 2-position damper, dual remote lockout, tapered steerer, 44mm offset, Kashima Coat, Boost110, 15mm Kabolt axle, 120mm travel
Rear suspension
Trek IsoStrut, Fox Factory shock, air spring, DPS 2-position remote damper, Kashima Coat, 235x32.5mm
Wheels
Wheels
Bontrager Kovee XXX 30, OCLV Mountain Carbon, Tubeless Ready, DT Swiss 54T engagement, centerlock, Shimano Microspline freehub, Boost110 front, Boost148 rear
Tyres
Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120tpi, 29x2.40"
Drivetrain
Shifters
Shimano XTR M9100, 12 speed
Rear derailleur
Shimano XTR M9100, Shadow Plus, long cage, 51T max cog
Crank
E*thirteen E*spec Race Carbon, 34T
Cassette
Shimano XTR M9100, 10-51, 12 speed
Chain
Shimano XTR M9100, 12 speed
Components
Saddle
Bontrager Montrose Pro, 7x10mm carbon rails, 138mm width
Seatpost
Bontrager XXX, OCLV Carbon, 31.6mm, 0mm offset, 400mm length
Handlebar
Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise
Grips
ESI Chunky
Stem
Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree, 70mm length
Head set
Knock Block Integrated, 62-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
Brake set
Shimano XTR M9120 4-piston hydraulic disc
Accessories
Battery
Fazua Evation 1.0, 250Wh
Controller
Fazua Remote bX
Motor
Fazua Evation
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