A 29″ aluminum frame full suspension enduro e-bike with upper mid-range components. Compare the full range
MSRP | $5,149 |
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Weight | 52.6 lbs |
Suspension | Full |
Travel | 150mm rear, 160mm front |
Frame | Aluminum |
Fork | RockShox 35 Gold RL |
Wheels | 29″ Aluminum |
Drivetrain | 1 × 12 |
Groupset | Deore, e*thirteen |
Motor | Bosch 250W 85Nm mid-drive |
Battery | Bosch 500Wh (♻️ Call2Recycle supporter) |
Brakes | Hydraulic Disc |
Seatpost | Dropper |
For This Bike
Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more. Learn more »
BHowellApr 2022
An excellent e-bike with a lot of electronics.
Well rounded ride
Suspension quality
Powerful Bosch motor
Seat angle could be steeper
Vulnerable Bosch controller and Kiox
Guy KestevenMar 2022
Trek’s Rail 9.9 eMTB is loaded with carbon fiber and wireless tech. Guy Kesteven explores what the pricey Bosch powered flagship is like to ride on a wet and rocky Lake District demo loop
Jeremy BensonMar 2022
The Rail 9.7 is a powerful electric mountain bike from the Trek Bicycle Company. This 29er has 150mm of rear-wheel travel paired with a 160mm fork and a...
Jan 2022
Price: $13549.99.00 | Model Year: 2021, 2022 | Trek's best long-travel electric mountain bike, designed for All Mountain and Enduro Riding. Light weight optimum compaction low void (OCLV) carbon fiber and magnesium frame comes in three sizes. Flip chip spacer in the rear swing arm further refines geometry for low and high settings.
Trek's best long-travel electric mountain bike, designed for All Mountain and Enduro Riding. Light weight optimum compaction low void (OCLV) carbon fiber and magnesium frame comes in three sizes. Flip chip spacer in the rear swing arm further refines geometry for low and high settings.
Available in three premium color schemes, the bike is setup with 29" wheels but can accommodate 27.5" or a mixed mullet setup (smaller rear wheel, larger front). Sturdy 12mm and 15mm thru-axles with Boost hub spacing offer stronger spoke bracing angle. Magnetic 6mm hex wrench quick release lever makes trail-maintenance convenient.
SRAM AXS wireless electronic shifting, dropper post, and air pressure settings and alerts for the tires and suspension. Bosch Smart System LED Remote, Kiox 300 display, PowerTube 750 battery, and CX motor with eBike Flow app. Premium quad-piston hydraulic disc brakes with extra-large 220mm front extra thick front rotor. Bottle cage bosses and ABUS keyed-alike code keyset.
Excellent weight positioning with the motor and battery low and center, but the PowerTube 750 goes from 9.7lbs to 10.8lbs with the color-matched Trek RIB cover and handle. Longer wheelbase due to longer battery design. Two smartphone apps required to configure all of the electronics (SRAM AXS and Bosch eBike Flow). No USB charging with the Bosch LED Remote despite having a USB-C port built in.
Rudolf FischerDec 2021
Wir testen für euch das neue Trek Rail 9.9 XX1 AXS 2022 mit neuem Bosch Smart System und intelligentem RockShox AirWiz-Fahrwerk.
Suspension offers lots of reserves
Unique paintwork
Poorly fitting battery
Components don't do the bike justice
AirWiz recommendations are off
Oct 2021
Great performance e-bike, killer motor tune, but so many glitchy electronic accessories.
Matt BeerOct 2021
The Rail 9.9 now has a 750Wh battery and geometry numbers that are similar to the Slash's.
Frame | Alpha Platinum Aluminum, Removable Integrated Battery (RIB), tapered head tube, Control Freak internal routing, magnesium rocker link, Motor Armor, Mino Link, ABP, Boost148, 12mm thru axle, 150mm travel Tire Clearance: 2.6" Colors: Crimson / Lithium Grey; Matte Trek Black / Miami Green |
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Fork | RockShox 35 Gold RL, DebonAir spring, Motion Control damper, lockout, tapered steerer, 44mm offset, oversized crown for eMTB, Boost110, 15mm Maxle Stealth, 160mm travel |
Rear Shock | RockShox Deluxe Select+, 230mm x 57.5mm |
Headset | Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom |
Stem | Bontrager Rhythm Comp, 31.8mm, Knock Block, 0 degree, 50mm length |
Handlebar | Bontrager alloy, 31.8mm, 15mm rise, 750mm width |
Saddle | Bontrager Arvada, steel rails, 138mm width |
Seatpost | Size: S, TranzX JD-YSP18, 100mm travel, internal routing, 31.6mm, 361mm length; Size: M, L, XL, TranzX JD-YSP18, 130mm travel, internal routing, 31.6mm, 425mm length |
Grips | Bontrager XR Trail Comp, nylon lock-on |
Rear Derailleur | Shimano Deore M6100, long cage |
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Crank | E*thirteen, 34T, steel |
Shifters | Shimano Deore M6100, 12 speed |
Cassette | Shimano Deore M6100, 10-51, 12 speed |
Chain | Shimano Deore M6100, 12 speed |
Brakes | Shimano 4-piston hydraulic disc, MT4100 lever, MT420 caliper |
Rims | Alex MD35, tubeless compatible, 32-hole, 35mm width, presta valve |
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Spokes | 14 g stainless steel |
Front Hub | Bontrager sealed bearing, alloy axle, 6-bolt, Boost110, 15mm thru axle |
Rear Hub | Bontrager alloy, loose ball bearing, alloy axle, 6-bolt, Shimano Micro Spline freehub, Boost148, 12mm thru axle |
Tires | Bontrager XR4 Comp, wire bead, 30 tpi, 29x2.60'' |
Disk Rotors | Shimano RT76, 6-bolt, 203mm |
Motor | Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 20mph or 32km/h max assist |
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Battery | Bosch PowerTube 500Wh |
Charger | Bosch compact 2A, 100-240V, smart system |