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Electric Full Suspension MTB
Trek Rail 9.8 GX AXS T-Type Gen 4
$10,299.99
SKU5302755
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 Mini Remote is discreet and intuitive.
OVERVIEW
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.
SPECS
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E-system is certified by an accredited testing laboratory as compliant with UL 2849.
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*Please note - spec applies to all sizes unless listed separately
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| Frameset | |
| 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
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| 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
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| Shock |
RockShox Super Deluxe Select+ RT, 230mm x 57.5mm
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| Max compatible fork travel |
170mm (580mm axle-to-crown)
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| Wheels | |
| Wheel front |
Bontrager Line Comp 30, Tubeless Ready, 6-bolt, Boost110, 15mm thru axle, 29''
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| Wheel rear |
Bontrager Line Comp 30, Tubeless Ready, Rapid Drive 108, 6-bolt, Boost148, 12mm thru axle, 29''
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| Skewer rear |
Bontrager Switch thru axle, removable lever
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*Tire
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Size: S, M, L, XL
Bontrager SE5 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50'' |
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Size: S, M, L, XL
Bontrager SE6 Team Issue, Tubeless Ready, Core Strength sidewalls, aramid bead, 120 tpi, 29x2.50'' |
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| Tire part |
Bontrager TLR sealant, 6oz
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| Rim strip | Bontrager TLR |
| Max tire size |
Frame: 29x2.60", Fork: See manufacturer
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| E-system | |
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*Battery
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Size: S
Bosch PowerTube 625Wh, smart system |
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Size: M, L, XL
Bosch PowerTube 750Wh, smart system |
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| Charger |
Bosch standard 4A, 110V, smart system
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*Controller
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Size: S, M, L, XL
Bosch System Controller BRC3100, smart system |
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Size: S, M, L, XL
Bosch Mini Remote BRC3300, smart system, 22.2mm |
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| Motor |
Bosch Performance Line CX, smart system, magnesium motor body, 85 Nm
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| Drivetrain | |
| Shifter |
SRAM AXS POD
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| Rear derailleur |
SRAM GX Eagle AXS, T-Type
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| Crank |
SRAM GX, 160mm length
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| Chainring |
SRAM XX T-Type, 34T, steel
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| Cassette |
SRAM Eagle XS-1275, T-Type,10-52, 12 speed
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| Chain |
SRAM GX Eagle, T-Type, 12 speed
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| Pedal |
VP-536 nylon platform
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| Max chainring size | 1x: 34T |
| Components | |
| Saddle |
Bontrager Arvada, austenite rails, 138mm width
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*Seatpost
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Size: S
Bontrager Line Elite Dropper, 100mm travel, MaxFlow, internal routing, 34.9mm, 345mm length |
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Size: M
Bontrager Line Elite Dropper, 150mm travel, MaxFlow, internal routing, 34.9mm, 440mm length |
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Size: L
Bontrager Line Elite Dropper, 170mm travel, MaxFlow, internal routing, 34.9mm, 485mm length |
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Size: XL
Bontrager Line Elite Dropper, 200mm travel, MaxFlow, internal routing, 34.9mm, 550mm length |
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| Handlebar |
Bontrager Line Pro, OCLV Carbon, 35mm, 27.5mm rise, 780mm width
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| Grips |
Bontrager XR Trail Elite, nylon lock-on
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| Stem |
Bontrager Line Pro, 35mm, Blendr compatible, 0 degree, 45mm length
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*Headset
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Size: S, M, L, XL
Knock Block Integrated, 67-deree radius, cartridge bearing, 1-1/8'' top, 1.8'' bottom |
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Size: S, M, L, XL
Knock Block Integrated, cartridge bearing, 1-1/8'' top, 1.8'' bottom |
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| Brake |
SRAM CODE Bronze 4-piston hydraulic disc
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*Brake rotor
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Size: S, M, L, XL
SRAM 6-bolt, 200mm |
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Size: S, M, L, XL
SRAM HS2, 6-bolt, 220mm |
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| Rotor size |
Max brake rotor sizes - Frame: 200mm, Fork: see fork manufacturer
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| Weight | |
| Weight |
M - 23.60 kg / 52.03 lbs (with TLR sealant, no tubes)
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| Weight limit |
This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).
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We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Prices shown are manufacturer's suggested retail prices.
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Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.
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SIZING GUIDE AND GEOMETRY
| Size | Rider Height | Inseam |
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| S |
155 - 165 cm 5'1" - 5'5" |
74 - 78 cm 29" - 31" |
| M |
165 - 176 cm 5'5" - 5'9" |
79 - 83 cm 31" - 33" |
| L |
177 - 188 cm 5'10" - 6'2" |
84 - 89 cm 33" - 35" |
| XL |
188 - 195 cm 6'2" - 6'5" |
89 - 91 cm 35" - 36" |
All measurements provided in cm unless otherwise noted.
| Frame size number | 15.5" | 15.5" | 17.5" | 17.5" | 19.5" | 19.5" | 21.5" | 21.5" |
| Frame size letter | S | S | M | M | L | L | XL | XL |
| Geometry position | High | Low | High | Low | High | Low | High | Low |
| Wheel size | 29" | 29" | 29" | 29" | 29" | 29" | 29" | 29" |
| A — Seat tube | 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 | 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 | 57.9 | 58 | 60 | 60.1 | 63.8 | 63.9 | 67.1 | 67.3 |
| F — Bottom bracket height | 34.6 | 34.1 | 34.6 | 34.1 | 34.6 | 34.1 | 34.6 | 34.1 |
| G — Bottom bracket drop | 2.7 | 3.3 | 2.7 | 3.3 | 2.7 | 3.3 | 2.7 | 3.3 |
| H — Chainstay length | 44.7 | 44.8 | 44.7 | 44.8 | 44.7 | 44.8 | 44.7 | 44.8 |
| I — Offset | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 | 4.3 |
| J — Trail | 13 | 13.3 | 13 | 13.3 | 13 | 13.3 | 13 | 13.3 |
| K — Wheelbase | 121.3 | 121.4 | 123.6 | 123.6 | 127.7 | 127.8 | 131.3 | 131.4 |
| L — Standover | 76.1 | 75.6 | 77.3 | 76.8 | 77 | 76.5 | 76.8 | 76.3 |
| M — Frame reach | 43.6 | 43.2 | 45.6 | 45.2 | 49.1 | 48.7 | 52.1 | 51.7 |
| N — Frame stack | 62.5 | 62.8 | 62.9 | 63.3 | 64.3 | 64.6 | 65.6 | 66 |