The FX 2 is a stylish and versatile hybrid bike for riding all around town. Exercise, commute or r...The FX 2 is a stylish and versatile hybrid bike for riding all around town. Exercise, commute or ride for fun with the wide range of speeds, reliable disc brakes that let you stop on a penny and loads of mounts for accessories. It features a lightweight aluminium frame with internal cable routing, hydraulic disc brakes for all-weather stopping power, a Shimano drivetrain with 9 speeds and a wide range of gearing, so you're never pedalling too hard or too softly. Mounts make it easy to accessorise your ride with racks, a kickstand, mudguards, lights and more! Like every Trek hybrid, it's backed by a lifetime warranty. Frame: Alpha Gold Aluminium, internal cable routing, rack & mudguard mounts, post mount disc, kickstand mount, 135x5 mm QR Fork: FX alloy, flat-mount disc, rack mounts, 410mm axle-to-crown, Thru Skew 5mm QR Wheels: Bontrager Connection, double-wall, 32-hole, 20 mm width, Schrader valve Tyres: Bontrager H2 Comp, wire bead, 30 tpi, 700x35 mm Drivetrain: Crankset: Pro Wheel Pro alloy, 40T narrow-wide steel ring, 170 mm length Shifters: Shimano U4000, 9-speed Rear Derailleur: Shimano CUES U4000 Chain: Shimano LG500 Cassette: Shimano LINKGLIDE LG300, 11-46, 9-speed Bottom Bracket: Sealed cartridge, 68 mm Components: Handlebar: Bontrager alloy, 31.8 mm, 15 mm rise Stem: Bontrager Comp, 31.8 mm, Blendr compatible, 7-degree Grips: Trek Line Ergonomic Comp, lock-on Brakes: Tektro HD-R280 hydraulic disc, 160 mm rotor Saddle: Bontrager Sport Seatpost: Bontrager alloy, 27.2 mm, 12 mm offset.
The Trek FX 2 Gen 4 2026 Hybrid Bike is designed for urban commuters, fitness riders, and recreational cyclists seeking a versatile and stylish ride. Its key benefit lies in its adaptability, offering a comfortable experience for daily commutes and enjoyable weekend rides alike, thanks to its wide gear range and reliable braking. A potential consideration is that while it's equipped for accessories, these are typically sold separately. This hybrid bike features a lightweight aluminum frame, internal cable routing for a clean look, hydraulic disc brakes for consistent stopping power in all conditions, and a smooth 9-speed Shimano drivetrain.
All features
Model Part Number
5336669
Brand
Trek
Extended Product Information
FAQs
What is the warranty on the Trek FX 2 Gen 4?
Like all Trek hybrid bikes, the FX 2 Gen 4 is backed by a lifetime warranty on the frame and rigid fork.
Can I fit wider tires on this bike?
The bike is designed with 700x35mm tires. While some minor variations might fit, it's best to consult with a Trek dealer for compatibility with significantly wider tire sizes.
Does it come with pedals?
Pedals are not always included with this model. Please check the product listing or consult with your retailer.
How often should I get my bike serviced?
For optimal performance and safety, it's recommended to have your bike professionally serviced annually, or more frequently if you ride extensively or in demanding conditions.
What type of riding is this bike best suited for?
The FX 2 Gen 4 is ideal for commuting, fitness riding, casual rides around town, and light trail use.
Can I install a kickstand?
Yes, the frame features a dedicated kickstand mount, making installation straightforward.
Troubleshooting
Brakes feel weak or spongy
Ensure the hydraulic brake levers are not contacting the handlebar. If the issue persists, the brake system may require bleeding. Consult a bike mechanic.
Gears are not shifting smoothly
Check derailleur alignment and cable tension. Small adjustments to the barrel adjuster on the shifter or derailleur can often resolve minor shifting issues. For significant problems, professional adjustment is advised.
Chain is skipping or falling off
Verify the chain is properly lubricated and that the chainrings and cassette are not worn. Ensure the front derailleur (if applicable, though this model has a 1x setup) or rear derailleur is correctly adjusted.
Tyre is constantly flat
Inspect the inside of the tyre and rim strip for sharp objects or damage. Ensure the tube is not pinched and that the tyre is correctly seated on the rim.
Pros and Cons
Pros
Versatile for commuting, fitness, and recreation.
Reliable hydraulic disc brakes for consistent stopping.
Wide gear range suits various terrains.
Ample mounts for customization with accessories.
Lightweight aluminum frame for easy handling.
Clean look with internal cable routing.
Cons
Accessories like racks and lights are typically sold separately.
The 35mm tire width might be slightly wide for pure road cycling speed.
While versatile, it's not optimized for aggressive off-road or high-speed road racing.
Setup, Compatibility & Care Instructions
Initial Setup: While many bikes arrive partially assembled, professional assembly by a bike shop is recommended to ensure all components are correctly installed and adjusted for safety and optimal performance. This includes brake and gear tuning.
Compatibility: The FX 2 Gen 4 features standard mounts compatible with most aftermarket racks, fenders, kickstands, and bicycle lights. Ensure accessories are specified for 700c wheel bikes. The handlebar stem uses the Blendr system for integrated accessory mounting.
Care: Regularly clean the frame with a mild soap and water solution. Keep the chain lubricated and free from excessive dirt. Check tire pressure weekly. Periodically inspect brake pads and rotors for wear. Store the bike in a dry place to prevent corrosion. Professional tune-ups annually are recommended.