2021 Trek
Rail 9.9
A 29″ carbon frame full suspension enduro e-bike with ultra high-end components.
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Manufacturer Price
$11,049| Weight | 49.4 lbs |
|---|---|
| Frame | Carbon |
| Suspension | Full, 150 / 160mm |
| Fork | RockShox ZEB Ultimate |
| Shock | RockShox Super Deluxe 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 |
For This Bike
Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.
Compare the full Rail model range
View Comparison
Apr 2022 · BHowell
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
Mar 2022 · Guy Kesteven
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
Lightweight yet super precise full carbon frame
Extended enduro geometry
Superbly controlled suspension performance
Latest big battery Bosch Smart System
Full SRAM AXS and Wiz comms componentry
Mega money
AirWiz feels gimmicky
Mar 2022 · Jeremy Benson
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.
Oct 2021
Great performance e-bike, killer motor tune, but so many glitchy electronic accessories.
Oct 2021 · Matt Beer
The Rail 9.9 now has a 750Wh battery and geometry numbers that are similar to the Slash's.
Jun 2021
Trek's Rail e-bike platform is smooth, powerful, and successfully walks the line between trail bike and something bigger.
| Frame | OCLV 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 Tire Clearance: 2.6" Colors: Solid Charcoal / Radioactive Orange; Solid Charcoal to Root Beer Ano Decal; Carbon Red Smoke / Lithium Grey; Gloss Purple Phaze / Matte Raw Carbon |
|---|---|
| Fork | RockShox ZEB Ultimate, DebonAir spring, Charger 2.1 RC2 damper, e-MTB optimzed crown, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel Travel: 160mm Spring Type: Air |
| Shock | RockShox Super Deluxe Ultimate RT3, DebonAir spring, Thru Shaft 3-position damper, 230mm x 57.5mm Travel: 150mm Spring Type: Air |
| Headset | Knock Block Integrated, 58-degree radius, cartridge bearing, 1-1/8'' top, 1.5'' bottom |
| Stem | Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degree, 45mm length |
| Handlebar | Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width |
| Saddle | Bontrager Arvada, austenite rails, 138mm width |
| Seatpost | Size: S, Bontrager Line Elite Dropper, 100mm travel, internal routing, 31.6mm, 340mm length; Size: M, Bontrager Line Elite Dropper, 150mm travel, internal routing, 31.6mm, 440mm length; Size: L, XL, Bontrager Line Elite Dropper, 170mm travel, internal routing, 31.6mm, 480mm length Type: Dropper |
| Pedals | VP-536 nylon platform |
| Grips | Size: S, M, L, XL, Bontrager XR Trail Elite, nylon lock-on; Size: S, M, L, XL, Bontrager XR Trail Elite, alloy lock-on |
| Rear Derailleur | SRAM X01 Eagle |
|---|---|
| Crank | E*thirteen E*spec Race carbon, 34T, 165mm length |
| Shifters | SRAM X01 Eagle, 12 speed |
| Cassette | Size: S, M, L, XL, SRAM Eagle XG-1275, 10-52, 12 speed; Size: S, M, L, XL, SRAM XG-1295 Eagle, 10-52, 12 speed |
| Chain | SRAM XX1 Eagle, 12 speed |
| Brakes | SRAM Code RSC 4-piston hydraulic disc Type: Hydraulic Disc |
| Rims | Bontrager Line Elite 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle |
|---|---|
| Rear Hub | Bontrager alloy, sealed bearing, 6-bolt, 108T Rapid Drive, SRAM XD driver, Boost148, 12mm thru axle |
| Tires | Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewall, aramid bead, 60 tpi, 29x2.60'' |
| Disc Rotors | Size: S, M, L, XL, SRAM CenterLine, 6-bolt, round-edge, 180mm; Size: S, M, L, XL, SRAM CenterLine, 6-bolt, round edge, 200mm |
| Motor | Bosch Performance CX, magnesium motor body, 250 watt, 85 Nm, 20mph or 32km/h max assist |
|---|---|
| Battery | Bosch PowerTube 625 Recycling Program: ♻️ Call2Recycle |
| Charger | Bosch standard 4A (100-240V) charger |
Last updated January 7
Not listed for 476 days