Trek Rail 9.9 Cxr Gen 4 Mountain Bike

US$ 9,309.00
(3 customer reviews)

Trek Rail 9.9 Cxr Gen 4 Mountain Bike

Rail 9.9 CXR is a race-ready long-travel e-bike that’s ready to go full gas right off the the starting line. It features our best carbon frame, smooth RockShox suspension, and top-tier Shimano XTR drivetrain. But the real show stealer on this powerhouse is the limited-edition Bosch Performance Line CXR motor that accelerates faster and offers sustained power for ripping through rock gardens without pedalling

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GTIN: 85857319 SKU: TREKMTB2023010004 Category:

Trek Rail 9.9 Cxr Gen 4 Mountain Bike

Performance Line CX Race motor

The limited-edition Race motor delivers explosive acceleration, full throttle jump out of corners, and the fastest possible ride. The Performance Line CX Race Edition is the perfect choice for e-MTB racers and expert riders who want more power off of the starting line.

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Removable Integrated Battery

RIB is a one-piece battery and cover with a built-in handle that can easily be removed and re-installed in the frame with no tools and no hassle. It’s the most convenient way to remove your battery for transport, security, or just easier charging.

Bosch Mini Remote

The compact, ergonomic Mini Remote lets you easily change assist level, activate Walk mode, or turn on optional lights, all without moving your hand off the handlebar. Plus, it’s wireless and connects with your System Controller via Bluetooth

Bosch System Controller

The System Controller gives you a quick overview of your assist mode and battery level without distracting you from the ride. It’s integrated into the top tube so it’s out of the way but still easy to see with LED indicators. It also connects to the eBike Flow app via Bluetooth for accessing ride stats and performing system updates.

RockShox AirWiz and Quarq TireWiz

TyreWiz monitors your tire pressure while AirWiz monitors your fork and shock pressure. Set your desired pressure in the SRAM AXS app and then just check the lights before each ride—red means you need a pump, green means go ride.

Bosch eBike Flow app

The new eBike Flow app turns your ride into a personalized experience. Use it to customize your motor’s assist behavior, track your ride stats, and integrate your data with apps like Strava and Apple Health. There’s even handy features like navigation and service reminders.

Shimano XTR

Designed to meet the highest level of competitive mountain bike racing needs, with second to none performance and experience, Shimano XTR M9100 brings lightweight, high-end versatility to XC, enduro, and marathon racing.

FrameOCLV 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
ForkRockShox 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
ShockRockShox Super Deluxe Thru Shaft, AirWiz, 230mm x 57.5mm
Max compatible fork travel170mm (580mm axle-to-crown)
Wheels
Wheel frontBontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
Wheel rearBontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle
Skewer rearBontrager Switch thru axle, removable lever
*TireSize: S, M, L, XL
Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29×2.50”
Size: S, M, L, XL
Bontrager SE6 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29×2.50”
*Tire partSize: S, M, L, XL
Bontrager TLR sealant, 6oz
Size: S, M, L, XL
Quarq TyreWiz tire pressure monitors
Drivetrain
ShifterShimano XTR M9100, 12 speed
Rear derailleurShimano XTR M9100, Shadow Plus, long cage, 51T max cog
CrankE*thirteen E*spec Race carbon, 34T, 165mm length
ChainringE*thirteen E*spec, 34T alloy, 55mm chainline
CassetteShimano XTR M9101, 10-51, 12 speed
ChainShimano Dura-Ace/XTR M9100, 12 speed
PedalVP-536 nylon platform
Components
SaddleBontrager Arvada, austenite rails, 138mm width
*SeatpostSize: 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
HandlebarBontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
GripsBontrager XR Trail Elite, nylon lock-on
StemBontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length
BrakeShimano XTR M9120 4-piston hydraulic disc
Brake rotorShimano RT86, 6-bolt, 203mm
Accessories
*BatterySize: S
Bosch PowerTube 625Wh, smart system
Size: M, L, XL
Bosch PowerTube 750Wh, smart system
ChargerBosch standard 4A, 110V, smart system
*ControllerSize: S, M, L, XL
Bosch System Controller BRC3100, smart system
Size: S, M, L, XL
Bosch Mini Remote BRC3300, smart system, 22.2mm
MotorBosch 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)
Weight
WeightM – 23.05 kg / 50.82 lbs
SizeRider HeightInseam
S

155 – 165 cm

5’1″ – 5’5″

74 – 78 cm

29″ – 31″

M

165 – 176 cm

5’5″ – 5’9″

79 – 83 cm

31″ – 33″

L

177 – 188 cm

5’10” – 6’2″

84 – 89 cm

33″ – 35″

XL

188 – 195 cm

6’2″ – 6’5″

89 – 91 cm

35″ – 36″

size

L, M, S, XL

color

Deep Smoke, Lava

3 reviews for Trek Rail 9.9 Cxr Gen 4 Mountain Bike

  1. Espen

    Easy to order, all items in stock, quick delivery and PayPal credit to boot – what’s not to like?

  2. Cristian

    Great price and speedy delivery. Think DPD are my preferred couriers as they give a 1 hour time slot which they usually keep too. Royal Mail seem a little antiquated. Only my opinion based on other experiences.

  3. ROGER

    Ease of ordering, prompt delivery. Everything you could ask for when online shopping.

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