Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
2021 Trek E-Caliber 9.9 XX1 AXS
Previous used estimate
$5,021 - $5,165
Actual value depends on condition, size, and local demand.
Value Guide market data · 2021 Trek E-Caliber 9.9 XX1 AXS
12-month projected trend
9%
Direction and magnitude, not judgment
vs. category average
5%
Drops faster than category avg
Price over time - 2021 Trek E-Caliber 9.9 XX1 AXS
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All E-Caliber model years
Overview
About this bike
E-Caliber 9.9 XX1 AXS 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 wanna ride your heart out on a lightweight e-MTB that rips singletrack just like a regular XC bike, but can give you an unobtrusive boost when you want one. You also want an amazing parts spec, filled with carbon and cutting edge tech like a fully wireless electronic drivetrain and our IsoStrut shock. The tech you get A lightweight, full OCLV Mountain Carbon frame with 60mm of travel, a 120mm RockShox SID Ultimate fork with Charger Race Day damper, remote lockout, and Trek's exclusive lightweight IsoStrut FOX Factory shock. A Fazua Evation motor and 250Wh battery that can assist up to 20 mph when it's on, and gives zero drag when it's off, plus a handlebar-mounted Fazua Remote FX controller. A SRAM XX1 Eagle AXS wireless electronic drivetrain, a Bontrager XXX carbon seatpost, 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 - The SRAM XX1 Eagle AXS drivetrain is smart, smooth, and completely wireless - 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 analog 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 2.9kg 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
Specifications
- Subtype
- Electric Mountain
- Category
- E-Bike
- Component Fork
- RockShox SID Ultimate, DebonAir spring, Charger Race Day damper, remote lockout, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
- Component Size
- Small, Medium, Large, X-Large
- Component Stem
- Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree, 70mm length
- Product Family
- E-Caliber
- Component Chain
- SRAM XX1 Eagle, 12-speed
- Component Color
- Gloss Radioactive Red/Matte Black, Alpine Navy Smoke/Trek White, Carbon Blue Smoke, Marigold to Radioactive Red Fade
- Component Frame
- OCLV Mountain Carbon main frame & stays, IsoStrut, tapered head tube, Knock Block, Control Freak internal routing, Boost148, 60mm travel
- Component Motor
- Fazua Evation
- Component Brakes
- Shimano XTR M9120 4-piston hydraulic disc
- Component Pedals
- Sold separately
- Component Saddle
- Bontrager Montrose Pro, 7x10mm carbon rails, 138mm width
- Component Battery
- Fazua Evation 1.0, 250Wh
- Component Headset
- Knock Block Integrated, 62-degree radius, cartridge bearing, 1-1/8" top, 1.5" bottom
- Component Crankset
- E*thirteen E*spec Race Carbon, 34T
- Component Seatpost
- Bontrager XXX, OCLV Carbon, 31.6mm, 0mm offset, 400mm length
- Component Shifters
- SRAM Eagle AXS, wireless, 12-speed
- Component Handlebar
- Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise
- Component Rear Tire
- Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120TPI, 29x2.40"
- Component Wheel Set
- Bontrager Kovee XXX 30, OCLV Mountain Carbon, Tubeless Ready, DT Swiss 54T engagement, centerlock, SRAM XD driver, Boost110 front, Boost148 rear
- Component Front Tire
- Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120TPI, 29x2.40"
- Component Rear Shock
- Trek IsoStrut, Fox Factory shock, air spring, DPS 2-position remote damper, Kashima Coat, 235x32.5mm
- Component Tape Grips
- ESI Chunky
- Component Rear Derailleur
- SRAM XX1 Eagle AXS
- Component Cassette Freewheel
- SRAM Eagle XG-1299, 10-52, 12-speed
- Component Controller Display
- Fazua Remote bX
- Rear Shock
- Trek IsoStrut, Fox Factory shock, air spring, DPS 2-position remote damper, Kashima Coat, 235x32.5mm
- Crankset
- E*thirteen E*spec Race Carbon, 34T
- Pedals
- Sold separately
- Chain
- SRAM XX1 Eagle, 12-speed
- Seatpost
- Bontrager XXX, OCLV Carbon, 31.6mm, 0mm offset, 400mm length
- Saddle
- Bontrager Montrose Pro, 7x10mm carbon rails, 138mm width
- Handlebar
- Bontrager Line Pro, OCLV Carbon, 35mm, 15mm rise
- Headset
- Knock Block Integrated, 62-degree radius, cartridge bearing, 1-1/8" top, 1.5" bottom
- Rear Derailleur
- SRAM XX1 Eagle AXS
- Rear Tire
- Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120TPI, 29x2.40"
- Stem
- Bontrager Kovee Pro, 35mm, Knock Block, Blendr compatible, 13 degree, 70mm length
- Brakes
- Shimano XTR M9120 4-piston hydraulic disc
- Fork
- RockShox SID Ultimate, DebonAir spring, Charger Race Day damper, remote lockout, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 120mm travel
- Frame
- OCLV Mountain Carbon main frame & stays, IsoStrut, tapered head tube, Knock Block, Control Freak internal routing, Boost148, 60mm travel
- Shifters
- SRAM Eagle AXS, wireless, 12-speed
- Tape/Grips
- ESI Chunky
- Motor
- Fazua Evation
- Battery
- Fazua Evation 1.0, 250Wh
- Color
- Marigold to Radioactive Red Fade
- Size
- X-Large
- Cassette/Freewheel
- SRAM Eagle XG-1299, 10-52, 12-speed
- Controller/Display
- Fazua Remote bX
- Wheel Set
- Bontrager Kovee XXX 30, OCLV Mountain Carbon, Tubeless Ready, DT Swiss 54T engagement, centerlock, SRAM XD driver, Boost110 front, Boost148 rear
- Front Tire
- Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120TPI, 29x2.40"
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Battery health
Request battery cycle count, capacity diagnostics, and motor service records.