The TREK Rail 9.8 is a long-travel, carbon-electric mountain bike that can keep up with our most powerful trail rigs and haul you back up the mountain. Everything, including the frame, has been updated to ensure your maximum enjoyment, even on the roughest descents. Plus, the new smart system, Performance Line CX from Bosch, provides a longer battery life (750Wh) and cutting-edge features like activity tracking, navigation, and wireless connectivity to take your ride to the next level.
It’s a right fit if…
You want a carbon electric mountain bike (e-MTB) with plenty of battery life and high-performance components for extended rides. You want the latest and greatest from Bosch, as well as the responsiveness of carbon, the stability of a longer reach, the plush feel of high-end suspension, and the comfort of a longer seat post.
TREK Rail 9.8 GX Gen 3 2023
What kind of technology do you get?
Increased strength and a longer wheelbase characterize this new version of the OCLV Mountain Carbon frame. A 750Wh battery for extended riding time, a snappy RockShox ZEB Select+ fork, and a RockShox Super Deluxe Ultimate Thru Shaft shock paired with a versatile SRAM GX gear range. Bosch’s latest features, such as the Bluetooth® LED remote for new connectivity and all-in-one navigation and activity tracking via the eBike Flow app, are included in the Performance Line CX smart system.
As the last word
The suspension kit in particular makes this bike a serious ripper, although the changes are all over the place. The powerful Bosch motor, right-lasting 750Wh battery, and rugged components make it ideal for hammering down steep terrain and rocketing back up.
Here’s why you’ll adore it:
The new LED remote and eBike Flow app from Bosch’s new smart system provide you with even more control and customization options while maintaining the same level of power and responsiveness.
The colorful Kiox screen provides trip details, pairs with Bluetooth® devices, and even helps prevent theft.
Faster than a standard shock, the RE:aktiv with Thru Shaft follows the terrain more closely and helps you maintain control.
To support beefier dropper posts, the new frame has a 34.9mm seat tube, and the bigger head tube is designed to work with beefy eMTB-optimized forks, resulting in less flex and more precise steering.
The Trek Removable Integrated Battery (RIB) system is both aesthetically pleasing and super convenient, as it completely conceals the battery within the frame for safety, permits the battery to be removed without the use of tools, and allows for the attachment of a water bottle cage.
| Build | |
| 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 Tire Clearance: 2.6″ Colors: Trek Black / Marigold to Red Fade; Dark Prismatic / Trek Black; Carbon Red Smoke / Viper Red |
| Fork | RockShox ZEB Select+, DebonAir spring, Charger 2.1 RC damper, eMTB optimized crown, tapered steerer, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel |
| Rear Shock | RockShox Super Deluxe Ultimate RT3, DebonAir spring, Thru Shaft 3-position damper, 230mm x 57.5mm |
| Headset | Knock Block Integrated, cartridge bearing, 1-1/8” top, 1.8” bottom |
| Stem | Bontrager Line Pro, 35mm, Knock Block, Blendr compatible, 0 degrees, 45mm length |
| Handlebar | Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width |
| Saddle | Bontrager Arvada, austenite rails, 138mm width |
| Seatpost | Size: M, Bontrager Line Elite Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length; Size: L, Bontrager Line Elite Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 485mm length; Size: XL, Bontrager Line Elite Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 550mm length |
| Grips | Bontrager XR Trail Elite, nylon lock-on |
| Groupset | |
| Rear Derailleur | SRAM GX Eagle |
| Crank | SRAM X1 1000, 34T, 165mm length |
| Shifters | SRAM GX Eagle, 12 speed |
| Cassette | SRAM Eagle XG-1275, 10-52, 12 speed |
| Chain | SRAM GX Eagle, 12 speed |
| Brakes | SRAM Code R 4-piston hydraulic disc |
| Wheels | |
| Rims | Front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru-axle, Rear: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru-axle |
| Front Hub | Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Boost110, 15 mm thru-axle |
| Rear Hub | Size: M, L, XL, Bontrager alloy, sealed bearing, 6-bolt, Rapid Drive 108, Shimano MicroSpline freehub, Boost148, 12 mm thru-axle; Size: M, L, XL, Bontrager alloy, sealed bearing, alloy axle, 6-bolt, Shimano MicroSpline freehub, Boost148, 12 mm thru-axle |
| Tires | Size: M, L, XL, Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 TPI, 29×2.50”; Size: M, L, XL, Bontrager SE6 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 TPI, 29×2.50” |
| Disk Rotors | Size: M, L, XL, SRAM CenterLine, 6-bolt, round-edge, 180mm; Size: M, L, XL, SRAM CenterLine, 6-bolt, round edge, 200mm |
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Electric Components
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| Motor | Bosch Performance Line CX, smart system, magnesium motor body, 85 Nm, 20 mph or 32 km/h max assist (25 km/h max assist in EU and APAC) |
| Battery | Bosch PowerTube 750Wh, smart system |
| Charger | Bosch standard 4A, 110V, smart system |
Sizing
| Size | Rider Height | Inseam |
| S | 153 – 167 cm 5’0″ – 5’6″ |
72 – 79 cm 28″ – 31″ |
| M | 161 – 175 cm 5’3″ – 5’9″ |
76 – 82 cm 30″ – 32″ |
| L | 174 – 188 cm 5’9″ – 6’2″ |
82 – 88 cm 32″ – 35″ |
| XL | 186 – 196 cm 6’1″ – 6’5″ |
87 – 92 cm 34″ – 36″ |
Geometry
| Frame size letter | Geometry position | Wheel size | A — Seat tube | B — Seat tube angle | Effective seat tube angle | C — Head tube length | D — Head angle | E — Effective top tube | F — Bottom bracket height | G — Bottom bracket drop | H — Chainstay length | I — Offset | J — Trail | K — Wheelbase | L — Standover | M — Frame reach |
N — Frame stack
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| M | Low | 29″ | 42.0 | 70.8° | 76.7° | 11.0 | 64.2° | 60.1 | 34.1 | 3.3 | 44.8 | 4.3 | 13.3 | 123.6 | 76.8 | 45.2 | 63.3 |
| M | High | 29″ | 42.0 | 71.2° | 77.1° | 11.0 | 64.6° | 60.0 | 34.6 | 2.7 | 44.7 | 4.3 | 13.0 | 123.6 | 77.3 | 45.6 | 62.9 |
| L | Low | 29″ | 45.0 | 70.8° | 76.7° | 12.5 | 64.2° | 63.9 | 34.1 | 3.3 | 44.8 | 4.3 | 13.3 | 127.8 | 76.5 | 48.7 | 64.6 |
| L | High | 29″ | 45.0 | 71.2° | 77.1° | 12.5 | 64.6° | 63.8 | 34.6 | 2.7 | 44.7 | 4.3 | 13.0 | 127.7 | 77.0 | 49.1 | 64.3 |
| XL | Low | 29″ | 50.0 | 70.8° | 76.7° | 14.0 | 64.2° | 67.3 | 34.1 | 3.3 | 44.8 | 4.3 | 13.3 | 131.4 | 76.3 | 51.7 | 66.0 |
| XL | High | 29″ | 50.0 | 71.2° | 77.1° | 14.0 | 64.6° | 67.1 | 34.6 | 2.7 | 44.7 | 4.3 | 13.0 | 131.3 | 76.8 | 52.1 | 65.6 |
| Brand | TREK |
| Model | Rail 9.8 GX Gen 3 2023 |
| Motor power | Electric |
| Maximum power, kW/h | 0.75 |
| Maximum torque, Nm | 85 |
| Battery type | Lithium-ion |
| Charging time, hours | 4.0 |
| Top Speed, km/h | 25 |
| Weight, kg | 23.45 |