Product Details
Category: Long-Travel Electric Mountain Bike
Description:
The Rail 9.8 GX AXS is a long-travel carbon electric mountain bike that delivers the same ripping performance as Trek’s beefiest trail rigs, with the added benefit of electric assist to power you back up the mountain. Equipped with the latest Bosch smart system technology, including a 750Wh battery and features like activity tracking, navigation, and Bluetooth connectivity, this bike offers cutting-edge performance. With upgraded components, including SRAM’s wireless electronic shifting and a high-end suspension setup, the Rail 9.8 GX AXS is built for riders who demand top-tier performance on both climbs and descents.
It's right for you if…
You’re looking for a long-travel carbon e-MTB with the latest in wireless electronic shifting, extended battery life, and advanced e-bike technology. You want the stability of a longer reach, high-end suspension for plush descents, and the latest Bosch smart system for optimal power and control.
The tech you get
The Rail 9.8 GX AXS features an upgraded OCLV Mountain Carbon frame with a longer reach and oversized head tube and seat tube for maximum strength. It comes with a 750Wh Bosch smart system battery for extended range, a RockShox ZEB Select+ fork for superior front suspension, and a RockShox Super Deluxe Select+ RT shock at the rear. The bike is also equipped with SRAM’s GX AXS wireless electronic transmission and Bosch’s Performance Line CX motor, paired with a System Controller integrated into the top tube and a discreet Mini Remote for changing modes and controlling Walk Assist.
The final word
The Rail 9.8 GX AXS is designed for serious riders who want a high-performance, long-travel e-MTB that can tackle gnarly descents and climb back up with ease. With upgrades across the board, including the AXS drivetrain, Bosch’s latest smart system, and high-end suspension, this bike is built for aggressive trail riding with the power and technology to back it up.
Why you'll love it:
- The integrated System Controller lets you see your assist mode and battery level without cluttering your cockpit, while the Mini Remote makes it easy to change modes and use Walk Assist.
- The smart system allows you to add a display for more data and control.
- Intelligent eMTB and Tour+ modes automatically adjust power based on your input for the perfect amount of assist on your ride.
- The extra stout frame with oversized head tube and seat tube ensures precise steering and can accommodate more robust dropper posts.
- Trek’s Removable Integrated Battery (RIB) system fully hides the battery for protection, makes removal tool-free, and allows for a water bottle mount.
Specifications:
| Category | Long-Travel Electric Mountain Bike |
|---|---|
| Motor | Bosch Performance Line CX smart system |
| Battery Capacity | 750Wh |
| Battery Range | 25 to 65 miles |
| Suspension | 170mm RockShox ZEB Select+ front, 150mm RockShox Super Deluxe Select+ RT rear |
| Frame | OCLV Mountain Carbon |
| Wheel Size | 29" |
| Drivetrain | SRAM GX AXS wireless electronic transmission |
| Brakes | Hydraulic disc brakes |
| Dropper Post | Yes, with oversized 34.9mm seat tube |
| Weight | 52 lbs |
Sizing
Geometry
| Frame size | Small | Small | Medium | Medium | Large | Large | X-Large | X-Large |
|---|---|---|---|---|---|---|---|---|
| Geometry position | High | Low | High | Low | High | Low | High | Low |
| Wheel size | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" |
| A - Seat tube (cm) | 41 | 41 | 42 | 42 | 45 | 45 | 50 | 50 |
| B - Seat tube angle | 71.2° | 70.8° | 71.2° | 70.8° | 71.2° | 70.8° | 71.2° | 70.8° |
| Effective seat tube angle | 77.1° | 76.7° | 77.1° | 76.7° | 77.1° | 76.7° | 77.1° | 76.7° |
| C - Head tube length (cm) | 10.5 | 10.5 | 11 | 11 | 12.5 | 12.5 | 14 | 14 |
| D - Head angle | 64.6° | 64.2° | 64.6° | 64.2° | 64.6° | 64.2° | 64.6° | 64.2° |
| E - Effective top tube (cm) | 57.9 | 58 | 60 | 60.1 | 63.8 | 63.9 | 67.1 | 67.3 |
| F - Bottom bracket height (cm) | 34.6 | 34.1 | 34.6 | 34.1 | 34.6 | 34.1 | 34.6 | 34.1 |
| G - Bottom bracket drop (cm) | 2.7 | 3.3 | 2.7 | 3.3 | 2.7 | 3.3 | 2.7 | 3.3 |
| H - Chainstay length (cm) | 44.7 | 44.8 | 44.7 | 44.8 | 44.7 | 44.8 | 44.7 | 44.8 |
| I - Offset (cm) | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 |
| J - Trail (cm) | 13 | 13.3 | 13 | 13.3 | 13 | 13.3 | 13 | 13.3 |
| K - Wheelbase (cm) | 121.3 | 121.4 | 123.6 | 123.6 | 127.7 | 127.8 | 131.3 | 131.4 |
| L - Standover (cm) | 76.1 | 75.6 | 77.3 | 76.8 | 77 | 76.5 | 76.8 | 76.3 |
| M - Frame reach (cm) | 43.6 | 43.2 | 45.6 | 45.2 | 49.1 | 48.7 | 52.1 | 51.7 |
| N - Frame stack (cm) | 62.5 | 62.8 | 62.9 | 63.3 | 64.3 | 64.6 | 65.6 | 66 |
Specs
| Frame | OCLV Mountain Carbon main frame, 1.8'' lower head tube, Bosch System Controller compatible, 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 Select+, DebonAir spring, Charger 3 RC2 damper, 1.8'' oversized tapered steerer, eMTB optimized crown, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel |
| Rear Shock | RockShox Super Deluxe Select+ RT, 230mm x 57.5mm |
| Wheels |
Front: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29'' Rear: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 29'' |
| Tires |
Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50'' Bontrager SE6 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50'' |
| Crankset | SRAM GX, 160mm length |
| Chainrings | SRAM XX T-Type, 34T, steel |
| Shifters | SRAM AXS POD |
| Rear Derailleur | SRAM GX Eagle AXS, T-Type |
| Cassette/Freewheel | SRAM Eagle XS-1275, T-Type,10-52, 12 speed |
| Chain | SRAM GX Eagle, T-Type, 12 speed |
| Brakes | SRAM CODE Bronze 4-piston hydraulic disc |
| Rotors |
SRAM 6-bolt, 200mm SRAM HS2, 6-bolt, 220mm |
| Handlebars | Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width |
| Tape/Grips | Bontrager XR Trail Elite, nylon lock-on |
| Stem | Bontrager Line Pro, 35mm, Blendr compatible, 0 degree, 45mm length |
| Headset | Knock Block Integrated, 67-deree radius, cartridge bearing, 1-1/8'' top, 1.8'' bottom |
| Seatpost | Bontrager Line Elite Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm |
| Saddle | Bontrager Arvada, austenite rails, 138mm width |
| Pedals | VP-536 nylon platform |
| Motor | Bosch Performance Line CX, smart system, magnesium motor body, 85 Nm |
| Battery |
Size Small: Bosch PowerTube 625Wh, smart system Size Medium - X-Large: Bosch PowerTube 750Wh, smart system |
| Controller/Display |
Bosch System Controller BRC3100, smart system Bosch Mini Remote BRC3300, smart system, 22.2mm |
| Charger | Bosch standard 4A, 110V, smart system |
* Subject to change without notice.