Marin Fairfax Electric ST with Throttle

2026 UrbanFitness Electric bicycle Manufacturer page

Marin Fairfax Electric ST with Throttle, color Charcoal

Last known price: $1,899

Prices shown first for United States
Suspension: Rigid
Wheels: 700c
Drivetrain: 1 × 8 42t / 11–40t
Gear range: 364%
Battery: 360 Wh
Frame: Aluminum
Brakes: Hydraulic disc

Rider height by size (cm)

Size guide

XS 151–164
SM 159–170
MD 165–177
LG 171–184

Components

19 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

Series 1 Fitness, E-Bike Specific, 6061 Aluminum, 700c Wheels, Disc Specific, Fitness Geometry, Step-Thru Top Tube, Kickstand Mount, Fender and Rack Mounts Not identified

Electric system

3 parts

Suspension

2 parts

Fork

6061 Aluminum, Straight-Blade, Disc Mount, Fender and Rack Eyelets Not identified
Remote
- Bafang

Drivetrain

6 parts

Bottom bracket

Integrated Torque Sensing, Sealed Cartridge Bearings, Square Taper Not identified
Cassette
- Shimano CS-HG400 11–40t
CS-HG400HG-400
Chain
- KMC X8 8 speeds
Crankset

Alloy Crank, Steel 42T Chainring, Ring Guard Not identified
Rear derailleur
- Shimano Acera
Shifters
- Shimano Altus

Brakes

2 parts

Wheels and tires

5 parts

Front hub

Forged Aluminum Alloy, 32H Not identified
Rear hub
- Bafang
Rims
- Marin
Spokes

14g Black Stainless Steel Not identified
Tires
- Vee Tire

Cockpit and contact points

6 parts

Sizes and geometry

4 sizes Open in the geometry plotter

Enter your height to highlight matching ranges.

Size SM

Table

Reach 400mm

Stack 571mm

Wheelbase 1070mm

Head angle 70.5°

Seat angle 73.5°

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
Frame
Reachmm	385	400	420	440
Stackmm	557	571	590	609
Top tube lengthmm	550	569	595	620
Seat tube lengthmm	380	430	480	520
Head tube lengthmm	140	155	175	195
Head tube angle	70.5°	70.5°	70.5°	70.5°
Seat tube angle	73.5°	73.5°	73.5°	73.5°
Chainstay lengthmm	445	445	445	445
Wheelbasemm	1050	1070	1097	1123
Front centermm	615	634	661	687
Bottom bracket dropmm	70	70	70	70
Bottom bracket heightmm	283.5	283.5	283.5	283.5
Standover heightmm	497	498	498	498
Fork rakemm	50	50	50	50
Trailmm	71	71	71	71
Stack/reach ratio	1.45	1.43	1.41	1.38
Suspension and parts
Crank lengthmm	170	170	170	170
Handlebar widthmm	640	640	680	680
Stem lengthmm	70	70	70	70

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

Specifications

Frame and fork

Intended fit: Unisex
Frame material: Aluminum
Fork material: Aluminum

Suspension

Suspension configuration: Rigid

Drivetrain

Derived by Bikelake

Front chainrings: 1
Smallest chainring: 42
Largest chainring: 42
Rear sprockets: 8
Smallest sprocket: 11
Largest sprocket: 40
Lowest gear: 30.5 in
Highest gear: 110.7 in

Wheels and brakes

Wheel configuration: Same size
Brake type: Hydraulic disc

Fit and controls

Seatpost: Rigid seatpost
Shifting: Mechanical

Electric system

Battery capacity: 360 Wh

Additional specifications

Battery: Bafang 360Wh, 36V, In-tube
Tire width: 40c
Wheel material: Aluminum
Wheel size: 700c

Technical analysis

3 measures

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

Lowest gear

30.5 gear inches

This value is above the central range for this class.

Cohort: Urban / Fitness Model year: 2026
Sample: 145 bicycles with this information
Coverage: 78.8% of the class

Highest gear

110.7 gear inches

This value is within the central range for this class.

Cohort: Urban / Fitness Model year: 2026
Sample: 145 bicycles with this information
Coverage: 78.8% of the class

Shifting

Mechanical

5 of 184 bicycles with this information use electronic shifting.

Cohort: Urban / Fitness Model year: 2026
Sample: 184 bicycles with this information
Coverage: 100.0% of the class

Gearing

Estimated speeds at 80 rpm

Lowest gear: 11.7 km/h
Highest gear: 42.4 km/h

Total gear range 364%

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: 30.5–110.7 gear inches
Class reference (p10–p90): 22.1–126.6 gear inches; The band runs from p10 for the lowest gear to p90 for the highest gear.

Cohort: Urban / Fitness Model year: 2026
Lowest gear: 145 bicycles with this information, 78.8% of the class
Highest gear: 145 bicycles with this information, 78.8% of the class