Rail 9.9 XTR

Rail 9.9 is our best long-travel electric mountain bike. You get an extra-beefy carbon frame, unbelievably smooth RockShox suspension, super-precise Shimano XTR drivetrain, and a powerful Bosch Performance Line CX motor with an extra-long range battery and the new smart system LED remote and Kiox display that pair with the eBike Flow app to give you activity tracking, navigation, and Bluetooth connectivity.

Specifications

Frameset
  • Frame
    NEW OCLV Mountain Carbon main frame, 1.8'' lower head tube, 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
  • Fork
    RockShox ZEB Ultimate, AirWiz, DebonAir spring, Charger 2.1 RC2 damper, e-MTB optimzed crown, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel
  • Rear Shock
    RockShox Super Deluxe Thru Shaft, AirWiz, 230x57.5mm
Drivetrain
  • Rear Derailleur
    Shimano XTR M9100, Shadow Plus, long cage, 51T max cog
  • Shifter
    Shimano XTR M9100, 12 speed
  • Crank
    Shimano XTR M9101, 10-51, 12 speed
  • Cassette
    Shimano Dura-Ace/XTR M9100, 12 speed
  • Chain
    Shimano Dura-Ace/XTR M9100, 12 speed
Components
  • Brakes
    (F) Shimano XTR M9120 4-piston hydraulic disc, (R) Shimano XTR M9120 4-piston hydraulic disc
  • Rotors
    Shimano RT86, 6-bolt, 203mm
  • Seatpost
    Bontrager Line Elite Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length
  • Saddle
    Bontrager Arvada, austenite rails, 138mm width
  • Handlebar
    Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
  • Stem
    Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length
  • Grips
    Bontrager XR Trail Elite, nylon lock-on
  • Headset
    Knock Block Integrated, cartridge bearing, 1-1/8'' top, 1.8'' bottom
Wheels
  • Wheels
    (F) Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle (R) Bontrager Line Pro 30, OCLV Mountain Carbon, Tubeless Ready, Rapid Drive 108, 6-bolt, Shimano MicroSpline freehub, Boost148, 12mm thru axle
  • Wheel Size
    29"
  • Tires
    Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50''
E-bike System
  • Motor
    Bosch Performance Line CX
  • Battery
    Bosch PowerTube 750Wh, smart system
  • Battery Charger
    Bosch standard 4A, 230V, smart system
More Info
Mountain bike pricing and specifications are ever changing. This info was last updated February 24, 2022.
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