Trek Fuel LX 9 Gen 7 XT

Name: Trek Fuel LX 9 Gen 7 XT
Brand: Trek

2027 MountainTrail Manufacturer page

Price: Not published

Prices shown first for United States
Europe: €5,699 Last known price
Travel: 170 / 145 mm Fork / rear shock
Wheels: 29″
Drivetrain: 1 × 12 30t / 10–51t
Gear range: 510%
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

15.5" 155–166
17.5" 164–178
19.5" 176–189
21.5" 187–195

Components

17 of 18 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

Alpha NEXT Platinum aluminium, internal storage, ZS headset, adjustable leverage rate, guided internal routing, interchangeable alloy rocker link, interchangeable lower shock mount, downtube guard, shuttle guard, BSA 73, ISCG 05, ABP, UDH, Boost148, adaptable travel 145 mm-160 mm Not identified

Suspension

2 parts

Drivetrain

6 parts

Brakes

2 parts

Wheels and tires

2 parts

Cockpit and contact points

5 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size 17.5"

Table

Reach 448mm

Stack 633mm

Wheelbase 1237mm

Head angle 63.4°

Seat angle 77.2°

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 4 published sizes

Complete manufacturer geometry by size
Measurement
Reachmm	418	448	473	498
Stackmm	619	633	647	661
Top tube lengthmm	552	586	621	655
Seat tube lengthmm	370	400	420	455
Head tube lengthmm	95	110	125	140
Head tube angle	63.4°	63.4°	63.4°	63.5°
Seat tube angle	77.5°	77.2°	76.4°	75.9°
Chainstay lengthmm	437	437	442	447
Wheelbasemm	1200	1237	1273	1310
Front centermm	765	801	833	864
Bottom bracket dropmm	26	27	27	27
Bottom bracket heightmm	348	347	347	347
Standover heightmm	757	754	757	768
Fork rakemm	44	44	43	44
Trailmm	138	138	137	137
Stack/reach ratio	1.48	1.41	1.37	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: Aluminum
Weight limit: 136 kg

299.8 lb

Suspension

Suspension configuration: Full suspension
Front travel: 170 mm
Rear travel: 145 mm

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 30
Largest chainring: 30
Rear sprockets: 12
Smallest sprocket: 10
Largest sprocket: 51
Lowest gear: 17.1 in
Highest gear: 87.0 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Derailleur hanger: UDH
Seatpost: Dropper seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BSA
Fork spring: Air
Rear shock spring: Coil
Tire clearance: Maximum tire width: 2.5″
Tire width: 2.5″
Wheel material: Aluminum
Wheel size: 29″

Technical analysis

4 measures

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

Front travel

170 mm

This value is above the central range for this class.

Cohort: Mountain / Trail Model year: 2027
Sample: 333 bicycles with this information
Coverage: 95.4% of the class

Lowest gear

17.1 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2027
Sample: 273 bicycles with this information
Coverage: 78.2% of the class

Highest gear

87.0 gear inches

This value is within the central range for this class.

Cohort: Mountain / Trail Model year: 2027
Sample: 273 bicycles with this information
Coverage: 78.2% of the class

Shifting

Mechanical

112 of 349 bicycles with this information use electronic shifting.

Cohort: Mountain / Trail Model year: 2027
Sample: 349 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 6.5 km/h
Highest gear: 33.3 km/h

Total gear range 510%

Technical details and class reference

These speeds describe the gearing at the selected cadence, not how fast you can ride.
Calculated from published gear-inch values and their wheel-size assumptions.
These gearing values describe the bicycle, not a selected frame size.
A 100% range means one ratio; 500% means the highest ratio is five times the lowest.
For e-bikes, motor assistance cutoff is not represented.

Gear-inch range

Lower gear-inch values travel less distance per pedal revolution; higher values travel farther.

This bicycle: 17.1–87.0 gear inches
Class reference (p10–p90): 16.7–104.4 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Mountain / Trail Model year: 2027
Lowest gear: 273 bicycles with this information, 78.2% of the class
Highest gear: 273 bicycles with this information, 78.2% 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 2027 builds
Specification	This bicycle Trek Fuel LX 9 Gen 7 XT	Trek Fuel EX 5	Trek Fuel EX 5 Gen 7	Trek Fuel EX 8	Trek Fuel EX 8 Gen 7	Trek Fuel EX 9.8 Eagle 90
Frame
Frame material	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum	Carbon
Bicycle weight	Not informed	16.88 kg	16.88 kg	16.58 kg	16.58 kg	Not informed
Suspension
Front travel	170 mm	150 mm	150 mm	150 mm	150 mm	150 mm
Drivetrain
Largest sprocket	51	51	51	52	52	52
Lowest gear	17.1 in	17.1 in	17.1 in	16.7 in	16.7 in	16.7 in
Wheels
Wheel configuration	Same size	Different sizes	Different sizes	Different sizes	Different sizes	Different sizes
Other specifications
Rear shock spring	Coil	Not informed	Not informed	Not informed	Not informed	Not informed
Tire width	2.5″	2.4″	2.4″	2.5″	2.5″	2.5″
Wheel size	29″	29″ / 27.5″	29″ / 27.5″	29″ / 27.5″	29″ / 27.5″	29″ / 27.5″