Trek Rail 9.9 CXR Gen 4
Trek Rail 202313299.99
E-Mountain EnduroColour / Deep Smoke, Lava
Size / SM (High, Low), MD (High, Low), LG (High, Low), XL (High, Low)
Weight / 50 lb 13.1 oz (23050 g)
Manufacturer WebsiteAt a glance
The 2023 Trek Rail 9.9 CXR Gen 4 is a E-Mountain and Enduro Carbon mountain bike. It sports 29" wheels, is priced at $13,300 USD, comes in a range of sizes, including SM (High, Low), MD (High, Low), LG (High, Low), XL (High, Low), has RockShox suspension and a Shimano drivetrain. The bike is part of Trek's Rail range of mountain bikes. As a pedal-assisted e-mountain bike, the Trek Rail 9.9 CXR Gen 4 is powered by a Bosch Performance Line CX Race Edition, Smart System, magnesium motor body, 250W power, 85 Nm max torque motor and a Bosch PowerTube, Smart System, integrated, removable (size SM has 625 Wh capacity) battery.- ABP (Active Braking Pivot) rear suspension design
- Removable Integrated Battery (RIB) system
- Geometry adjustable via Mino Link flip chip in rear rocker link pivot
- Knock Block 2.0 steerer stop (removable)
- Control Freak guided internal cable routing
- Power settings customizable, plus all-in-one navigation and activity tracking, via Bosch eBike Flow Mobile App
- Weight given for size MD
- Includes Bosch 4A 110V Smart System charger
- Includes RockShox AirWiz and Quarq TireWiz electronic pressure indicators for suspension and tires
- Includes Bontrager TLR tubeless tire sealant, rim strips, and valves
Where To Buy
Trek
Trek Rail 9.9 CXR Gen 4Reviews
Specifications
Frameset
-
FrameOCLV Mountain Carbon main frame, carbon rear triangle, magnesium rocker link, Motor Armor, molded seatstay and chainstay protection
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ForkRockShox ZEB Ultimate, DebonAir spring, Charger 3 RC2 damper, lockout, AirWiz electronic pressure indicator, oversized crown for e-MTB, 44mm offset, Maxle Stealth thru-axle
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ShockRockShox Super Deluxe Ultimate RT, DebonAir spring, Thru Shaft damper, AirWiz electronic pressure indicator, 230mm length x 57.5mm stroke
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MotorBosch Performance Line CX Race Edition, Smart System, magnesium motor body, 250W power, 85 Nm max torque
-
BatteryBosch PowerTube, Smart System, integrated, removable (size SM has 625 Wh capacity)
Wheels
-
HubsBontrager Line Pro 30 wheelset, 15mm x 110mm (Boost) front, 12mm x 148mm (Boost) rear with Rapid Drive 108 freehub and MICRO SPLINE driver
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WheelsBontrager Line Pro 30 wheelset, OCLV Mountain Carbon, tubeless ready
-
Wheel Size29"
-
SpokesBontrager Line Pro 30 wheelset
-
TiresFront: Bontrager SE6 Team Issue, Core Strength sidewalls, aramid bead, 120 TPI, tubeless ready, 29"" x 2.5"
Rear: Bontrager SE5 Team Issue, Core Strength sidewalls, aramid bead, 120 TPI, tubeless ready, 29" x 2.5"
Drivetrain
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ChainShimano XTR M9100, 12-speed
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Cranke*thirteen e*spec Race Carbon, 165mm length
-
Rear DerailleurShimano XTR M9100, 12-speed, SHADOW RD+, long cage
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ShiftersShimano XTR M9100, 12-speed
Components
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BrakesetShimano XTR M9120, 4-piston, Shimano RT86 203mm 6-bolt rotors, Shimano XTR M9120
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HandlebarBontrager Line Pro, OCLV Carbon, 780mm width, 27.5mm rise, 35mm clamp diameter
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SaddleBontrager Arvada, austenite rails, 138mm width
-
SeatpostBontrager Line Elite dropper, MaxFlow, 34.9mm, Single bolt
Drop:
100mm (SM)
150mm (MD)
170mm (LG)
200mm (XL) -
StemBontrager Line Pro, 45mm length, 0° rise, 35mm bar clamp, Knock Block and Blendr compatible
-
GripsBontrager XR Trail Elite, nylon lock-on
-
HeadsetTrek Knock Block integrated, 72° radius rotation limiter, cartridge bearings
FAQ
Q: How much is a 2023 Trek Rail 9.9 CXR Gen 4?
A 2023 Trek Rail 9.9 CXR Gen 4 is typically priced around $13,300 USD when new. Be sure to shop around for the best price, and also look to the used market for a great deal.
Q: Where to buy a 2023 Trek Rail 9.9 CXR Gen 4?
The 2023 Trek Rail 9.9 CXR Gen 4 may be purchased directly from Trek.
Q: How much does a 2023 Trek Rail 9.9 CXR Gen 4 weigh?
A 2023 Trek Rail 9.9 CXR Gen 4 weights 50 lb 13.1 oz (23050 g).
Q: What size wheels does the 2023 Trek Rail 9.9 CXR Gen 4 have?
The 2023 Trek Rail 9.9 CXR Gen 4 has 29" wheels.
Q: What size 2023 Trek Rail 9.9 CXR Gen 4 should I get?
The 2023 Trek Rail 9.9 CXR Gen 4 comes in sizes SM (High, Low), MD (High, Low), LG (High, Low), XL (High, Low). After measuring your height, use the size chart below to find the typical Trek Rail 9.9 CXR Gen 4 size for your height. Remember that these sizes are a general guide and bike sizes can vary between riders and bikes. The best way to find your size is to go for a test ride.
| Rider Height (cm) | Rider Height (in) | Frame Size |
|---|---|---|
| 148cm - 158cm | 4'10" - 5'2" | XS |
| 158cm - 168cm | 5'2" - 5'6" | S |
| 168cm - 178cm | 5'6" - 5' 10" | M |
| 178cm - 185cm | 5'10" - 6'1" | L |
| 185cm - 193cm | 6'1" - 6'4" | XL |
| 193cm - 198cm | 6'4" - 6'6" | XXL |
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