The FX 3 is a versatile hybrid bike that's primed for performance, comfort and utility. It has fea...The FX 3 is a versatile hybrid bike that's primed for performance, comfort and utility. It has features like a lightweight aluminium frame, a carbon fork, a 1x drivetrain and powerful disc brakes that stop in any weather. It's a commuting pro if you want it to be, or the perfect fitness companion on road and rail trails. Specifications Frameset Frame: Alpha Gold Aluminium, internal cable routing, rack & mudguard mounts, post mount disc, kickstand mount, 135x5 mm QR Fork: FX carbon, flat-mount disc, rack mounts, 410mm axle-to-crown, Thru Skew 5mm QR Wheels Rims: Bontrager Tubeless Ready Disc, 32-hole, Presta valve Tyres: Bontrager H2 Comp, wire bead, 30 tpi, 700x35 mm Drivetrain Crankset: Prowheel alloy, 40T narrow-wide ring, 170 mm length Shifters: Shimano CUES U6000 w/optical gear display, 10-speed Rear Derailleur: Shimano CUES U6000 GS Chain: Shimano LG500 Cassette: Shimano CUES LG300, LINKGLIDE, 11-48, 10-speed Components Handlebar: Bontrager Comp Lowriser, alloy, 31. 8 mm, 15 mm rise, 600 mm width Stem: Bontrager Comp, 31. 8 mm, Blendr compatible, 7-degree Grips: Trek Line Ergonomic Pro, lock-on Brakes: Shimano hydraulic disc, MT201 lever, UR300 calliper Saddle: Bontrager H1 Seatpost: Bontrager alloy, 27. 2 mm, 12 mm offset Pedals: Bontrager City pedals Trek FX Sizing SMLXLRider Height (cm) 155 - 165165 - 175175 - 186186 - 197Inside Leg (cm) 72 - 7877 - 8382 - 8887 - 93
The Trek FX 3 Gen 4 is a versatile hybrid bike designed for riders seeking a comfortable and capable machine for commuting, fitness, and exploring rail trails. Its key benefit lies in its blend of lightweight performance and practical features, making it adaptable to various terrains and uses. A potential caveat for some riders might be the 700x35mm tire width, which offers a balance but may not be ideal for aggressive off-road riding. This bike features an Alpha Gold Aluminum frame, a carbon fork for vibration dampening, a reliable 1x drivetrain, and powerful Shimano hydraulic disc brakes for confident stopping in all conditions.
All features
Model Part Number
5336767
Brand
Trek
Extended Product Information
FAQs
What is the main purpose of the Trek FX 3 Gen 4?
The Trek FX 3 Gen 4 is a versatile hybrid bike suitable for commuting, fitness riding, and general recreational use on paved surfaces and light gravel paths.
Can I install fenders and a rack on this bike?
Yes, the frame is equipped with mounts for both rear racks and mudguards, making it easy to add accessories for commuting or touring.
What size tires does it come with, and can I use wider ones?
It comes with 700x35mm tires. The frame and fork generally allow for tires up to around 40mm, offering some flexibility for different riding conditions.
Is this bike suitable for off-road trails?
While capable on well-maintained gravel paths and fire roads, the FX 3 is not designed for aggressive mountain biking. Its 35mm tires and hybrid geometry are best suited for smoother surfaces.
How does the 1x drivetrain simplify riding?
The 1x drivetrain has only one front chainring and a wide-range rear cassette, meaning fewer gears to manage and a simpler, more reliable shifting experience. This is ideal for everyday riding and reduces maintenance.
What is the benefit of the carbon fork?
The carbon fork helps absorb road vibrations and impacts, leading to a smoother and more comfortable ride compared to an all-aluminum fork.
Do I need to assemble the bike myself?
While some minor assembly might be required if shipped directly, it is strongly recommended to have the bike professionally assembled and tuned by a bike shop for safety and optimal performance.
Troubleshooting
Bike making clicking or grinding noises
Check the drivetrain for debris. Ensure the chain is properly lubricated. Inspect the cassette and chainring for wear. Have the bottom bracket and pedals checked for tightness.
Brakes feel weak or spongy
Check brake pad alignment and wear. Ensure rotors are clean and free of contamination. For hydraulic brakes, the system may require bleeding. Consult a mechanic if unsure.
Gears are not shifting smoothly
Ensure the derailleur is properly adjusted. Check the derailleur hanger for bends. Inspect the shifter cable for damage or fraying. Clean and lubricate the chain.
Tires lose pressure quickly
Inspect tires and tubes for punctures. Ensure rim tape is properly seated if running tubeless. Check valve stems for leaks.
Pros and Cons
Pros
Versatile for commuting, fitness, and light trail use.
Comfortable ride thanks to the carbon fork and ergonomic grips.
Reliable and easy-to-use 1x drivetrain.
Strong and consistent braking performance with hydraulic discs.
Ample mounting points for racks and fenders, enhancing utility.
Cons
Tire width (35mm) may be too narrow for significant off-road terrain.
While versatile, it's not specialized for high-performance road racing.
The included pedals are basic; upgrades may be desired for specific use cases.
Setup, Compatibility & Care
Initial Setup: Upon receiving your FX 3, it is recommended to have it professionally assembled and tuned by a qualified bicycle mechanic to ensure safety and optimal performance. Key adjustments include brake calibration, gear indexing, and tightening all bolts to the correct torque specifications.
Compatibility:
Tires: The FX 3 comes with 700x35mm tires. It is compatible with tires up to approximately 40mm wide, allowing for customization based on riding surface. Check frame and fork clearance before installing wider tires.
Accessories: The frame features mounts for rear racks and mudguards, making it compatible with most standard pannier bags and full-fender sets. Handlebar and stem are compatible with Bontrager Blendr accessories for integrated light and computer mounts.
Wheels: The rims are Tubeless Ready, allowing for conversion to a tubeless tire setup with appropriate rim tape, valves, and sealant.
Care:
Cleaning: Regularly clean the frame and drivetrain with mild soap and water. Avoid high-pressure washing, especially near bearings.
Drivetrain Maintenance: Keep the chain clean and lubricated. Apply lubricant after washing or riding in wet conditions. Periodically inspect the chain, cassette, and chainring for wear.
Brake Care: Check brake pad wear regularly. Clean rotors with isopropyl alcohol if contaminated with oil or grease. For hydraulic brakes, ensure no leaks are present.
Storage: Store the bike in a dry place away from direct sunlight and extreme temperatures when not in use. For long-term storage, consider cleaning and lubricating the chain and protecting the frame.