Description

2024 Trek FX Sport 4 Carbon (Medium) Bike

Trek’s Official Chart: Trek generally recommends the Medium (M) frame size for riders between 5’5″ and 5’9″ (165cm–175cm)

Industry Description:

The FX Sport 4 Carbon is a key offering in the flat-bar road/fitness hybrid segment, catering to a growing market of riders who seek performance without the aggressive geometry of traditional drop-bar road bikes.

Carbon Advantage: Using 400 Series OCLV Carbon is a major differentiator in the hybrid market. It makes the bike significantly lighter than its aluminum counterparts and provides better vibration damping, enhancing comfort over long distances.
1x Drivetrain Trend: The 1x (single chainring) drivetrain is a major industry trend, simplifying shifting to a single rear derailleur while still offering a wide gear range (like the 11-48t cassette) suitable for both high-speed flats and steep hills.
Performance Geometry: The bike’s geometry is more aggressive than a casual commuter but more upright than a race bike. This “all-road” positioning is ideal for serious fitness training, spirited commuting, and endurance riding.

Frame: 400 series OCLV Carbon, internal routing, 3s chain keeper, DuoTrap S compatible, fender mounts, flat mount disc, 135x5mm ThruSkew

Fork: Carbon, hidden fender mounts, flat mount disc, 100x5mm thru-skew

Crank: Prowheel alloy, 42T narrow-wide ring, 175mm length

Pedals: platform

Chain: Shimano LG500, 9/10/11 speed

Rear Derailleur: Shimano CUES U6000 GS

Shifters: Shimano CUES U6000 w/optical gear display, 10 speed

Hubs: Formula CL-51 alloy, 100x5mm Front Hub, Formula CL-52 alloy, 135x5mm rear Hub

Rims: Bontrager Paradigm, Tubeless Ready, 32-hole, 21mm width, Presta valve

Tires: Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40c

Max tire size: 42mm without fenders, 40mm with fenders

Cog Set: Shimano CUES LG300, LINKGLIDE, 11-48, 10 speed

Brake: Shimano hydraulic disc, MT201 lever, UR300 caliper, Shimano RT10, centerlock, 160mm, Max brake rotor sizes: 160mm front & rear

Inventory number: 102701

Every bike I sell has been tuned up ($300+ Value at any Bike Shop), and everything is in excellent condition.

The Guy High-Performance Tune-up:

Wash Bike
Adjusting Hubs (Overhaul if needed)
True Wheels
Installing tubes and tires (if needed)
Adjusting Headset
Adjust Front and Rear Derailleur
Drive Train Clean (in sonic cleaner) and lube
- Chain
- Cassette
- Front Derailleur
- Rear Derailleur
- Crankset
Adjusting Brakes and Cleaning Brake Pads
Installing any Cable and Housing (if needed)
Wrap Bars, New Grops (if needed)
Safety inspection of the frame and all parts
Detail Polish

So, purchase USED with the confidence that you will have a finely-tuned bike

A little about the seller:

I’ve been in the cycling industry for more than 30 years (I know, that makes me old!). I’ve been a professional bicycle mechanic for most of those years, including working locally at Lee’s Cyclery before they became Trek Stores. Now I work from home as a Customer Success Manager for a software team. But I still love fixing up and working on bikes, and riding them too!

Shipping information:

I ship UPS Ground, and the bike is disassembled. I do have a video to help in putting it back together. Usually, it’s the Bars, Front Wheel, Pedals, and Seatpost that need to be reinstalled. I try to keep it simple. It will be packed very well, but if you see any damage to the box or bike, keep the box and packing material, plus take pictures. I ensure that all bikes that are shipped require a signature. In addition, if shipped out of Colorado, there is no Sales Tax.