Compare: 2023 Trek Rail 9.9 CXR Gen 4

Bike Comparison

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	Rail 9.9 CXR Gen 42023 Trek	Recommended

MSRP	$13,299
Where to Buy	— $1 At
Category	Enduro, E-Bike
Weight	50.8 lbs
	8.4
Frame	Carbon
Fork	RockShox ZEB Ultimate
Shock	RockShox Super Deluxe
Wheels	Carbon
Wheel Size	29″
Brakes	Hydraulic Disc
Motor	Bosch 600W 85Nm mid-drive
Battery	Bosch 625Wh
Groupset	XTR, e*thirteen
Drivetrain	1 × 12
Suspension	Full
Front Travel	160mm
Rear Travel	150mm
Brand Site	trekbikes.com
Summary	The Trek Rail 9.9 CXR Gen 4 is a 29″ carbon frame full suspension enduro e-bike with ultra high-end components.

Similar Bikes

Accessories

Ride Feel

Based on frame geometry and build specs.

Terrain

easyextreme

Handling

nimblestable

Rail 9.9 CXR Gen 4

Other Enduro bikes

Gear Range

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

29 mph

Rail 9.9 CXR Gen 4

Highest gear

(descending)

Spec Level

Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

Geometry

Specs

	Rail 9.9 CXR Gen 42023 Trek

Frame	OCLV Mountain Carbon main frame, 1.8'' lower head tube, Bosch System Controller compatible, Removable Integrated Battery (RIB), Knock Block 2.0, guided internal routing, 34.9mm seat tube, magnesium rocker link, Motor Armor, Mino Link, ABP, Boost148, 12mm thru axle, 150mm travel BB Standard: Bosch, Press Fit Tire Clearance: 2.6" Colors: Deep Smoke; Lava
Fork	RockShox ZEB Ultimate, AirWiz, DebonAir spring, Charger 3 RC2 damper, 1.8'' oversized tapered steerer, eMTB optimized crown, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel
Shock	RockShox Super Deluxe Thru Shaft, AirWiz, 230mm x 57.5mm
Bottom Bracket	Bosch, press-fit
Stem	Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length
Handlebar	Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
Saddle	Bontrager Arvada, austenite rails, 138mm width
Seatpost	Size: S, Bontrager Line Elite Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 345mm length; Size: M, Bontrager Line Elite Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length; Size: L, Bontrager Line Elite Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 485mm length; Size: XL, Bontrager Line Elite Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 550mm length
Pedals	VP-536 nylon platform
Grips	Bontrager XR Trail Elite, nylon lock-on

Groupset

Rear Derailleur	Shimano XTR M9100, Shadow Plus, long cage, 51T max cog
Crank	Ethirteen Espec Race carbon, 34T, 165mm length
Shifters	Shimano XTR M9100, 12 speed
Cassette	Shimano XTR M9101, 10-51, 12 speed
Chain	Shimano Dura-Ace/XTR M9100, 12 speed
Brakes	Shimano XTR M9120 4-piston hydraulic disc

Wheels

Rims	Front: Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, Rear: Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle
Tires	Size: S, M, L, XL, Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50''; Size: S, M, L, XL, Bontrager SE6 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50''
Disc Rotors	Shimano RT86, 6-bolt, 203mm

Electric Components

Motor	Bosch Performance Line CX Race Edition, smart system, magnesium motor body, 85 Nm, 20 mph or 32 km/h max assist (25 km/h max assist in EU and APAC)
Battery	Size: S, Bosch PowerTube 625Wh, smart system; Size: M, L, XL, Bosch PowerTube 750Wh, smart system
Charger	Bosch standard 4A, 110V, smart system

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