E-Caliber 9.9 XTR Gen 1 - Trek Bikes (IE)

Overview

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.

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.

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.

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

‘As expected, the E-Caliber made us feel like the World Cup racers we wish we were, but the real benefit was that we were more willing to ride, rather than drive, to our favourite trails. Logging more miles in the same amount of time is a win in our book.’

'Trek's E-Caliber makes for a unique riding experience that should appeal to those looking to get in more trail miles instead of shuttle runs' – Bicycling Magazine Editors

‘The combination of short travel, light weight and aggressive geometry will make for a bike that opens up the joys of long trail adventures and ripping fast singletrack to a segment of riders that may not otherwise get to experience that thrill.’

Saddle up with E-Caliber Gen 1 for just enough power on long, fast miles or E-Caliber Gen 2 for a lighter and more powerful ride.

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Going where no bike has gone before with Payson McElveen and E-Caliber.

The E-Caliber's got an appetite for distance, a love of XC speed and the right amount of suspension and power to turn up your endurance on epic singletrack sessions.

Watch the video

Features

Fazua's lightweight drive system adds a punch of power when you need it, but rides and feels like a traditional bike when you don't. You won't feel much drag or resistance when you turn it off or pass the max level of assist. The system is also compatible with a smartphone app to let you check battery status and customise your ride.

The E-Caliber is equipped with intelligent Fazua software called BLACK PEPPER, which allows the motor to respond immediately as you start to pedal, delivers more power over a wider cadence range and lets you customise your user settings.

Remove the motor and drivepack to save 2.9 kg/6.4 lb on days when you don't need the boost. The included cover also turns the down tube into extra storage.

The E-Caliber has the same innovative IsoStrut rear suspension as the World Cup-winning Supercaliber. You get 60 mm of integrated rear travel – just the right amount of comfort and traction, without the weight or flex of traditional full suspension.

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Trek's mountain-specific carbon fibre is tougher carbon, with unique materials and lay-up procedures, Trek's advanced engineering, and a higher standard of testing.

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This suspension calculator will help you optimise your suspension settings for your riding weight. Simply follow the steps to find your best set up.

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Tubeless Ready rims and tyres make it easy to ditch the tubes so you get better traction, fewer flats and less weight. You're ready to roll straight out of the box with the included TLR rim strips, valves and sealant.

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Every set of Bontrager carbon wheels is backed by the Carbon Care Wheel Loyalty Programme. In the unlikely event that you damage your Bontrager carbon wheels within the first two years of ownership, we’ll repair or replace them for free.

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Knock Block has your frame's back when things go wrong. It prevents your handlebars from spinning all the way around in a crash, so your hoses won't get yanked and your controls won't hit the top tube.

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With 108 points of engagement, Rapid Drive gives you nearly instant acceleration instead of a clunky lag when you step on the pedals. You get smooth, immediate power to blast out of corners and hammer through the rough stuff. And that extra pedal ratchet adds control that can make all the difference when tackling a tricky climb.

Wider dropouts (110mm front, 148mm rear) give you the stiffness of a 27.5" wheel with all the benefits of a 29" wheel, and Boost148 at the back lets you run wider tyres and a larger chain ring without affecting q-factor and pedalling efficiency.

Specs

Frame	OCLV Mountain Carbon main frame and stays, IsoStrut, tapered head tube, Knock Block, Control Freak internal routing, Boost148, 60 mm travel
Fork	Fox Factory 34 Step-Cast, Float EVOL air spring, FIT4 2-position damper, dual remote lockout, tapered steerer, 44 mm offset, Kashima Coat, Boost110, 15 mm Kabolt axle, 120mm travel
Shock	Trek IsoStrut, Fox Factory shock, air spring, DPS 2-position remote damper, Kashima Coat, 235 mm x 32.5 mm
Max compatible fork travel	120mm (531mm axle-to-crown)

Wheel front	Bontrager Kovee XXX, OCLV Mountain Carbon, Tubeless Ready, CentreLock, Boost110, 15 mm thru axle
Wheel rear	Bontrager Kovee XXX, OCLV Mountain Carbon, Tubeless Ready, DT Swiss 54T engagement, CentreLock, SRAM XD driver, Boost148, 12 mm thru axle
Skewer rear	Bontrager Switch thru-axle, removable lever
Tyre	Bontrager XR3 Team Issue, Tubeless Ready, Inner Strength sidewall, aramid bead, 120 tpi, 29 x 2.40"
Max tyre size	Frame: 29x2.40", Fork: See manufacturer

Shifter	Shimano XTR M9100, 12-speed
Rear derailleur	Shimano XTR M9100, Shadow Plus, long cage, 51-T max cog
Crank	Ethirteen Espec Race Carbon, 32T, 175 mm length
Crank arm	Ethirteen Espec Race Carbon, 32T, 170 mm length
Cassette	Shimano XTR M9101, 10-51, 12-speed
Chain	Shimano Dura-Ace/XTR M9100, 12-speed
Max. chainring size	1x: 32T (52mm chainline), 36T (55mm chainline)

Saddle	Bontrager Verse Pro, carbon rails, 145 mm width
*Seatpost	Size: S Bontrager XXX, OCLV Carbon, 31.6 mm, 0 mm offset, 330 mm length
Size: M , L , XL Bontrager XXX, OCLV Carbon, 31.6 mm, 0 mm offset, 400 mm length
Handlebar	Bontrager Line Pro, OCLV Carbon, 35 mm, 15 mm rise, 750 mm width
Grips	ESI Chunky
*Stem	Size: S , M Bontrager Kovee Pro, 35 mm, Knock Block, Blendr-compatible, 13-degree, 60 mm length
Size: L , XL Bontrager Kovee Pro, 35 mm, Knock Block, Blendr-compatible, 13-degree, 70 mm length
Head set	Knock Block Integrated, 62-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
Brake	Shimano XTR M9120 4-piston hydraulic disc
*Brake rotor	Size: S , M , L , XL Shimano MT900, 203 mm, CenterLock
Size: S , M , L , XL Shimano EM910, 180 mm, CenterLock

Battery	Fazua Evation battery, 250 Wh
Charger	Fazua Evation charger, 220-240V
Controller	Fazua Remote bX
Motor	Fazua Evation Drive Pack, 25 km/h (15.5 mph) max assist, 32 km/h for New Zealand
Tool	Bontrager Switch Lever, w/tool

Weight	M - 16.38 kg / 36.05 lbs (with TLR sealant, no tubes)
Weight limit	This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 136 kg (300 lb).

Sizing

Geometry

Service

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The Walkthrough

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Outside Magazine’s 2021 Best eMTB

E-Caliber is a winner in Bicycling Magazine's 2021 E-Bike Awards!

‘The heart of a cross-country racer’

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Which generation is right for you?

Ascending new heights

Wondering what's over the next ridge?

Suspension Calculator

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Complete Tubeless System

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Carbon Care Wheel Loyalty Programme

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Knock Block

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Rapid Drive 108 rear hub

Boost148/110