Trek FX Sport 6

2021 UrbanFitness Manufacturer page

Suspension: Rigid
Wheels: 700c
Drivetrain: 2 × 11 34–50t / 11–32t
Gear range: 428%
Weight: 9.3 kg 20.5 lb · Reference configuration not specified
Frame: Carbon
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

SM 155–166
MD 164–176
LG 174–187
XL 185–197

Components

20 of 23 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

400 series OCLV carbon, IsoSpeed, internal routing, 3s chain keeper, DuoTrap S compatible, fender mounts, flat mount disc, 142x12mm thru axle Not identified

Suspension

1 part

Fork

Size: S, M, L, XL, FX Carbon, threadless alloy steerer, hidden fender mounts, flat mount disc, 405mm axle-to-crown, 100x12mm thru axle; Size: S, M, L, XL, FX Carbon, flat mount disc, hidden fender mounts, 405mm axle-to-crown, 100x12mm thru axle Not identified

Drivetrain

7 parts

Bottom bracket
- Shimano SM-BB71
SM-BB71
Cassette
- Shimano 105 CS-R7000 11 speeds
CS-R7000
Chain
- Shimano CN-HG601
CN-HG601
Crankset
- Shimano 105 FC-R7000 11 speeds 50/34t
FC-R7000
Front derailleur
- Shimano 105 FD-R7000 2 speeds
FD-R7000
Rear derailleur
- Shimano 105 RD-R7000 11 speeds
RD-R7000
Shifters
- Shimano GRX SL-RS700
SL-RS700

Brakes

2 parts

Brakes
- Tektro HD-R310
HD-R310
Disc rotors
- Shimano SM-RT10
SM-RT10

Wheels and tires

5 parts

Front hub
- Bontrager
Rear hub
- Bontrager
Rims
- Bontrager
Spokes

14g stainless steel Not identified
Tires
- Bontrager

Cockpit and contact points

7 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size MD

Table

Reach 403mm

Stack 584mm

Wheelbase 1067mm

Head angle 71.0°

Seat angle 74.0°

Every size is drawn to the same scale, in millimeters. Explanatory schematic on an assumed 700c 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	395	403	409	419
Stackmm	558	584	611	640
Top tube lengthmm	550	570	590	620
Seat tube lengthmm	406	457	508	559
Head tube lengthmm	135	160	185	210
Head tube angle	70.5°	71°	71.5°	72.5°
Seat tube angle	74.5°	74°	73.5°	72.5°
Chainstay lengthmm	438	438	438	438
Wheelbasemm	1056	1067	1072	1080
Front centermm	626	637	642	650
Bottom bracket dropmm	65	65	65	65
Bottom bracket heightmm	285	285	285	285
Standover heightmm	712	743	781	818
Fork rakemm	50	49	45	44
Trailmm	71	70	67	63
Stack/reach ratio	1.41	1.45	1.49	1.53

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
Fork material: Carbon
Bicycle weight: 9.3 kg

20.5 lb
Weight limit: 136 kg

299.8 lb

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 2
Smallest chainring: 34
Largest chainring: 50
Rear sprockets: 11
Smallest sprocket: 11
Largest sprocket: 32
Lowest gear: 30.8 in
Highest gear: 131.8 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Additional specifications

Bottom bracket standard: BB86/BB92
Tire clearance: Maximum tire width: 35c
Tire width: 32c
Travel: Front: Additional specification: Not available: Yes
Rear: Additional specification: Not available: Yes
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

2 measures

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

Lowest gear

30.8 gear inches

This value is above the central range for this class.

Cohort: Urban / Fitness Model year: 2021
Sample: 245 bicycles with this information
Coverage: 92.1% of the class

Highest gear

131.8 gear inches

This value is above the central range for this class.

Cohort: Urban / Fitness Model year: 2021
Sample: 245 bicycles with this information
Coverage: 92.1% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.8 km/h
Highest gear: 50.5 km/h

Total gear range 428%

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: 30.8–131.8 gear inches
Class reference (p10–p90): 20.6–131.8 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Fitness Model year: 2021
Lowest gear: 245 bicycles with this information, 92.1% of the class
Highest gear: 245 bicycles with this information, 92.1% 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 2021 builds
Specification	This bicycle Trek FX Sport 6	Trek FX 1	Trek FX 1 Disc	Trek FX 1 Stagger	Trek FX 1 Stagger Disc	Trek FX 2 Disc
Frame
Intended fit	Unisex	Unisex	Unisex	womens	womens	Unisex
Frame material	Carbon	Aluminum	Aluminum	Aluminum	Aluminum	Aluminum
Fork material	Carbon	Steel	Steel	Steel	Steel	Aluminum
Bicycle weight	9.3 kg	12.57 kg	12.9 kg	12.48 kg	12.84 kg	11.95 kg
Drivetrain
Front chainrings	2	3	3	3	3	3
Smallest chainring	34	28	28	28	28	28
Largest chainring	50	48	48	48	48	48
Rear sprockets	11	7	7	7	7	8
Smallest sprocket	11	14	14	14	14	11
Largest sprocket	32	34	34	34	34	32
Lowest gear	30.8 in	23.9 in	23.9 in	23.9 in	23.9 in	25.4 in
Highest gear	131.8 in	99.4 in	99.4 in	99.4 in	99.4 in	126.6 in
Brakes
Brake type	Hydraulic disc	Rim brake	Mechanical disc	Rim brake	Mechanical disc	Hydraulic disc
Other specifications
Bottom bracket standard	BB86/BB92	BSA	Not informed	BSA	Not informed	Not informed
Tire clearance	Maximum tire width: 35c	Not informed	Maximum tire width: 38c; Additional specification: Wheel kind: 700	Not informed	Maximum tire width: 38c	Maximum tire width: 38c
Tire width	32c	35c	35c	35c	35c	35c