Trek Rail 9.8 GX AXS Gen 4 Bike (2024)

Trek Rail 9.8 GX AXS Gen 4 bike, 2024 season, electric mountain bike in red. Trek reference: 5278178

The Rail 9.8 GX AXS is a long-travel carbon e-MTB that glides like our beefiest trail rigs and propels you back down the mountain. You'll get improvements to everything, including the frame, to fully enjoy the most complicated races. The latest technology from Bosch with the intelligent Performance Line CX system has a 750 Wh battery for longer autonomy and interesting features that take your trip to the next level, such as activity tracking, navigation and Bluetooth connectivity. The new system controller is nearly flush for a sleek look and the mini controller is discreet and intuitive.

• The new system controller displays the currently selected support level and the remaining battery level. It is seamlessly integrated into the top tube for maximum protection and a sleek look.
• Bosch's new smart system gives you the same power and responsiveness with a new discreet mini remote that's optimized with just the controls you need at your fingertips to toggle between assistance levels or switch to walk mode.
• eMTB and eMTB Lite smart modes automatically adjust assistance based on your data to give you just the right amount of power for your ride.
• The new frame is extra strong with a 34.9mm seat tube to accommodate beefier dropper posts and an oversized head tube that works with beefy e-MTB-optimized forks for less flex and more precise steering.
• Trek's Removable Integrated Battery (RIB) system looks great and is very easy to use: it completely hides the battery in the frame for protection, makes it easy to remove without tools, and allows you to mount a water bottle cage.

Frame set

• Frame: OCLV Mountain Carbon main frame, 1.8” lower head tube, Bosch System Controller compatible, Removable Integrated Battery (RIB), Knock Block 2.0, internal cable routing, 34.9 seat tube mm, magnesium rocker link, Motor Armor, Mino Link, ABP, Boost148, 12mm thru axle, 150mm travel
• Fork: RockShox ZEB Select+, DebonAir, Charger 3 RC2, 1.8" oversized tapered steerer, eMTB-optimized crown, 44mm offset, Boost110, 15mm Maxle Stealth, 160mm travel
• Shock: RockShox Super Deluxe Select+ RT, 230mm x 57.5mm
• Maximum compatible fork travel 170mm (580mm from axle to crown)

Wheels

• Front Wheel: Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru-axle, 29"
• Rear Wheel: Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6 bolt, Boost148, 12mm thru axle, 29"
• Rear Closure: Bontrager Switch thru-axle, removable cam
• Tire: Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50”
• Tire Part: Bontrager TLR Sealant, 6oz
• Rim tape: Bontrager TLR
• Max size of the tire: Frame: 29x2.60", Fork: See manufacturer

Electric system

• Battery: Bosch PowerTube 750 Wh, intelligent system
• Charger: Bosch standard 4A, 230V, intelligent system
• Console: Bosch BRC3300 mini remote control, smart system, 22.2 mm
• Engine: Bosch Performance Line CX, intelligent system, magnesium motor body, 85 Nm

Transmission

• Shift lever: SRAM GX Eagle AXS, 12 speed
• Rear Derailleur: SRAM GX Eagle AXS
• Bottom bracket: SRAM X1 1000, 34T, length 165 mm
• Chainring: SRAM X-SYNC 2, 34T, aluminum
• Cassette: SRAM Eagle XG-1275, 10-52, 12 speed
• Chain: SRAM GX Eagle, 12 speed
• Pedal: VP-536 nylon platform
• Maximum chainring size: 1x: 34T

Components

• Saddle: Bontrager Arvada, austenite rails, 138mm width
• Seatpost: Bontrager Line Elite dropper post, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length
• Handlebar: Bontrager Line Pro, OCLV carbon, 35 mm, height 27.5 mm, width 780 mm
• Grips: Bontrager XR Trail Elite, nylon lockout
• Stem: Bontrager Line Pro, 35mm, Blendr compatible, 0 degrees, 45mm length
• Brake disc: SRAM CenterLine, 6 bolts, rounded edge, 200 mm
• Brake set: SRAM Code R 4-piston hydraulic disc
• Disc size: Maximum brake disc sizes - Frame: 200mm, Fork: see fork manufacturer

Accessories

• Electronic Devices: SRAM AXS Auxiliary Power Cable

Weight

• Weight: M - 23.90 kg / 52.7 lbs