Trek Rail 9.8 Gen 4 GX AXS T-Type

Name: Trek Rail 9.8 Gen 4 GX AXS T-Type
Brand: Trek

2024 MountainEnduro Electric bicycle Manufacturer page

Trek Rail 9.8 Gen 4 GX AXS T-Type, color Mercury

Last known price: $10,499

Prices shown first for United States
Travel: 160 / 150 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 10–52t
Gear range: 520%
Battery: 625 Wh
Weight: 23.78 kg 52.4 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

19.5" 175–189
19.5" 175–189

Components

23 of 25 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Frame and fork

1 part

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 Not identified

Electric system

4 parts

Suspension

3 parts

Drivetrain

6 parts

Bottom bracket
- Bosch
Cassette
- SRAM XS-1275 Eagle Transmission 12 speeds
XS-1275
Chain
- SRAM GX Eagle 12 speeds
Crankset
- SRAM GX
Rear derailleur
- SRAM GX
Shifters
- SRAM

Brakes

2 parts

Wheels and tires

2 parts

Cockpit and contact points

7 parts

Grips
- Bontrager
Handlebar
- Bontrager
Headset

undefined - S, XL, L, M: Knock Block Integrated, 67-deree radius, cartridge bearing, 1-1/8'' top, 1.8'' bottom; S, XL, L, M: Knock Block Integrated, cartridge bearing, 1-1/8'' top, 1.8'' bottom Not identified
Pedals
- VP
VP-536
Saddle
- Bontrager
Seatpost
- Bontrager
Stem
- Bontrager

Sizes and geometry

2 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 19.5"

Table

Reach 491mm

Stack 643mm

Wheelbase 1277mm

Head angle 64.6°

Seat angle 77.1°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 29″ wheel; exact published values are in the table below.

Size Reported by the manufacturer

Complete manufacturer geometry table 2 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	491	487
Stackmm	643	646
Top tube lengthmm	638	639
Seat tube lengthmm	450	450
Head tube lengthmm	125	125
Head tube angle	64.6°	64.2°
Seat tube angle	77.1°	76.7°
Chainstay lengthmm	447	448
Wheelbasemm	1277	1278
Front centermm	831	832
Bottom bracket dropmm	27	33
Bottom bracket heightmm	346	346
Standover heightmm	770	765
Fork rakemm	43	43
Trailmm	130	133
Stack/reach ratio	1.31	1.33

Not published by the manufacturer: Front travel, Rear travel, Crank length, Handlebar width, Stem length, Stem angle, Seatpost length and Dropper post travel.

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Carbon
Bicycle weight: 23.78 kg

52.4 lb
Weight limit: 136 kg

299.8 lb

Suspension

Suspension configuration: Full suspension
Front travel: 160 mm
Rear travel: 150 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 52

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Derailleur hanger: UDH
Seatpost: Dropper seatpost
Shifting: Electronic

Electric system

Battery capacity: 625 Wh

Additional specifications

Battery: Bosch, Smart System (BES3), PowerTube 625 Battery, BOSCH P/N: EB12.100.012 - S: Bosch PowerTube 625Wh, smart system; XL, L, M: Bosch PowerTube 750Wh, smart system
Bottom bracket standard: Bosch
Fork spring: Air
Tire clearance: Maximum tire width: 2.6″
Tire width: 2.5″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

3 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

160 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2024
Sample: 1,578 bicycles with this information
Coverage: 98.0% of the class

Rear travel

150 mm

This value is within the central range for this class.

Cohort: Mountain / Enduro Model year: 2024
Sample: 1,329 bicycles with this information
Coverage: 82.5% of the class

Shifting

Electronic

439 of 1,609 bicycles with this information use electronic shifting.

Cohort: Mountain / Enduro Model year: 2024
Sample: 1,609 bicycles with this information
Coverage: 100.0% of the class

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2024 builds

Differences across 2024 builds
Specification	This bicycle Trek Rail 9.8 Gen 4 GX AXS T-Type	Trek Rail 5 625W Gen 3	Trek Rail 5 Gen 3	Trek Rail 7 Gen 3	Trek Rail 8 Gen 3 GX AXS T-Type	Trek Rail 9.5 Gen 4
Frame
Frame material	Carbon	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Bicycle weight	23.78 kg	24.88 kg	Not informed	24.13 kg	23.88 kg	24.23 kg
Drivetrain
Smallest sprocket	10	11	10	10	10	11
Largest sprocket	52	51	51	51	52	51
Smallest chainring	Not informed	34	34	Not informed	Not informed	34
Largest chainring	Not informed	34	34	Not informed	Not informed	34
Lowest gear	Not informed	19.3 in	19.3 in	Not informed	Not informed	19.3 in
Highest gear	Not informed	89.6 in	98.6 in	Not informed	Not informed	89.6 in
Cockpit
Derailleur hanger	UDH	Not informed	Not informed	Not informed	UDH	Not informed
Shifting	Electronic	Mechanical	Mechanical	Mechanical	Electronic	Mechanical
Electric bicycle systems
Battery capacity	625 Wh	625 Wh	500 Wh	625 Wh	625 Wh	625 Wh
Other specifications
Bottom bracket standard	Bosch	Not informed	Not informed	Not informed	Not informed	Bosch
Tire width	2.5″	2.4″	2.4″	2.5″	2.5″	2.6″