Trek Rail 9.8 GX AXS T-Type Gen 4
Details
Rail 9.8 GX AXS is a long-travel carbon e-MTB that rips like our beefiest trail rigs and powers you right back up the mountain. You get upgraded everything, including the frame, Bosch's latest tech with smart system Performance Line CX that has a longer-range 750Wh battery and cool features that take your ride to the next level like activity tracking, navigation, and Bluetooth connectivity. The System Controller sits almost flush for a sleek look, and the Mini Remote is discreet and intuitive.
WHY YOU'LL LOVE IT
- Rail Gen 4's integrated System Controller lets you see your assist mode and battery level without getting in the way while the Mini Remote makes it easy to change modes or use Walk Assist
- Its clean cockpit is minimalist and sleek, and smart system makes it easy to add a display if you want more data
- Intelligent eMTB and Tour+ modes automatically adjust the assist based on your input to give you just the right amount of power for your ride
- The frame is extra stout with a 34.9mm seat tube to accommodate more robust dropper posts and an oversized head tube that works with burly e-MTB-optimized forks for less flex and more precise steering
- Trek's Removable Integrated Battery (RIB) system looks great and is super user-friendly: it fully hides the battery in the frame for protection, makes it easy to remove the battery without tools, and lets you mount a water bottle cage
IT'S RIGHT FOR YOU IF…
You're looking for a long-travel carbon e-MTB with wireless electronic shifting and a lot of battery power. You want the stability of a longer reach, the plush feel of high-end suspension, and the very latest e-bike tech with the Bosch smart system.
THE TECH YOU GET
An upgraded OCLV Mountain Carbon frame with longer reach and oversized head tube and seat tube for maximum strength. An extra-long-range 750Wh battery, a super responsive RockShox ZEB Select+ fork, and RockShox Super Deluxe Select+ RT shock. You get SRAM's GX AXS wireless electronic transmission and the latest from Bosch with smart system Performance Line CX, including a Bluetooth® System Controller that's integrated into the top tube and compact Mini Remote to change modes.
THE FINAL WORD
This bike features across-the-board upgrades that make it a serious ripper — especially the AXS drivetrain. It's built for hammering gnarly descents, then flying right back up again thanks to the powerful Bosch motor, 750Wh battery, and parts that can keep up with all that rowdy riding.
| 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 |
| Size | Rider Height (cm) | Rider Height (in) | Inseam (cm) | Inseam (in) |
|---|---|---|---|---|
| Small | 155 - 165 | 5'1" - 5'5" | 74 - 78 | 29 - 31 |
| Medium | 165 - 176 | 5'5" - 5'9" | 79 - 83 | 31 - 33 |
| Large | 177 - 188 | 5'10" - 6'2" | 84 - 89 | 33 - 35 |
| X-Large | 188 - 195 | 6'2" - 6'5" | 89 - 91 | 35 - 36 |
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.
Part Numbers
| Option | UPC | MPN | Store SKU |
|---|---|---|---|
| Mercury / Small / 29-inch | 768682718605 | 5302755 | RAI252351854 |
| Mercury / Medium / 29-inch | 768682718322 | 5302756 | RAI254049044 |
| Mercury / Large / 29-inch | 768682718483 | 5302757 | RAI256820274 |
| Mercury / X-Large / 29-inch | 768682718261 | 5302758 | RAI263026384 |
| Pennyflake / Small / 29-inch | 768682633069 | 5302759 | RAI288319664 |
| Pennyflake / Medium / 29-inch | 768682633045 | 5302760 | RAI285107254 |
| Pennyflake / Large / 29-inch | 768682633021 | 5302761 | RAI281966464 |
| Pennyflake / X-Large / 29-inch | 768682633007 | 5302762 | RAI292291424 |