2021 Trek Rail 9.9

The 2021 Trek Rail 9.9 is a 29″ carbon frame full suspension enduro e-bike with ultra high-end components.

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2021 Trek Rail 9.9
  • MSRP $10,499
  • Weight 49.4 lbs / 22.4 kg
  • Front Travel 170mm
  • Rear Travel 150mm
  • Frame Carbon
  • Fork RockShox ZEB Ultimate
  • Wheels 29″ Carbon
  • Drivetrain 1 × 12
  • Groupset X01 Eagle, e*thirteen
  • Motor Bosch 250W 85Nm mid-drive
  • Battery Bosch 625Wh
  • Brakes Hydraulic Disc
  • Seatpost Dropper post
Where to Buy
Jenson USA Black Friday Deals

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Gearing

1 × 12 — 12 speed

2021 Trek Rail 9.9
13 mph
Similar Bikes
26 mph

The Rail 9.9 is easier to ride up hills than similar bikes.

The Rail 9.9 won‘t keep up with similar bikes while riding downhill or sprinting.


Estimated Spec Level

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

est. spec level →$0$2,000$4,000$6,000$8,000$10,000
This bike
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Reviews

Geometry

Specs
Build
FrameOCLV Mountain Carbon main frame, Removable Integrated Battery (RIB), tapered head tube, Knock Block, Control Freak internal routing, magnesium rocker link, Motor Armor, Mino Link, ABP, Boost148, 12mm thru axle, 150mm travel
ForkRockShox ZEB Ultimate, DebonAir spring, Charger 2.1 RC2 damper, e-MTB optimzed crown, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 170mm travel
Rear ShockNEW RockShox Super Deluxe Ultimate RT3, DebonAir spring, Thru Shaft 3-position damper, 230x57.5mm
HeadsetKnock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom
StemBontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length
HandlebarBontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
SaddleBontrager Arvada, austenite rails, 138mm width
SeatpostBontrager Line Elite Dropper, 170mm travel, internal routing, 31.6mm, 480mm length
GripsBontrager XR Trail Elite, alloy lock-on
Groupset
Rear DerailleurSRAM X01 Eagle
CrankE*thirteen E*spec Race carbon, 15T, 165mm length
ShiftersSRAM X01 Eagle, 12 speed
CassetteSRAM Eagle XG-1275, 10-52, 12 speed
ChainSRAM XX1 Eagle, 12 speed
BrakesSRAM Code RSC hydraulic disc
Wheels
RimsNEW Bontrager Line Elite 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle
Front HubBontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle
TiresBontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewall, aramid bead, 60 tpi, 29x2.60''
Disk RotorsSRAM CenterLine, 6-bolt, round-edge, 200mm
Electric Components
MotorBosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 20mph or 32km/h max assist
BatteryBosch PowerTube 625
ChargerBosch standard 4A (100-240V) charger
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2021 Trek Rail 9.9
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