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Trek FX Sport Carbon 4

Trek FX Sport Carbon 4
  • Color: Dark Aquatic/Carbon Smoke
  • Color: Quicksilver/Carbon Smoke
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High performance. That's a phrase not normally used to describe a hybrid bicycle. The FX Sport Carbon 4 is definately a high performance machine!

The FX Sport Carbon 4 performs well for several reasons, starting with lightness. Trek uses their exclusive 400 Series OCLV carbon fiber throughout the frame of the FX Sport Carbon 4, helping to keep weight to a minimum for attacking challenging hills and inclines. But high performance can mean other things. The ride quality of a bicycle can help a rider perform at their best by smoothing out rough and choppy pavement. The IsoSpeed decoupler at the top of the seat tube allows the frame to soak up impacts large and small, keeping the rider fresher for longer rides. The ability of the bike to transfer the rider's power can make a big difference throughout any ride. The oversized press-fit BB86.5 bottom bracket ensures flex-free power delivery, helping the rider to keep up on fast-paced road rides. Razor-sharp handling is there, too, thanks to a tapered head tube, 12mm thru-axles and grippy Bontrager tires. Need fenders for a rainy commute? The FX Sport Carbon 4 has those as well. Internal cable routing keeps the bike looking clean and sleek.

The FX Sport Carbon 4 goes to the head of the class in functionality and ease of use. Shimano's new 11-speed GRX components are found throughout the bike, including the clutch-equipped derailleur, 40T alloy single-ring crankset and wide-range 11-42T cassette. These components are designed to work together right from the factory, boasting lightning-quick shifting and long service life. The flat-bar Shimano shifter require less hand strength than previous versions, making gear changes even more intuitive.

The FX Sport Carbon 4's tubeless-ready alloy Bontrager Disc wheels are wrapped with grippy 700x32c Bontrager R1 Hard-Case Lite tires, bringing a smooth feel and easy acceleration to every mile. Shimano's hydraulic disc brakes offer excellent lever feedback and predictable stopping power in all conditions, rain or shine. A Bontrager H1 saddle provides a comfy perch atop an alloy Bontrager seatpost, while an accessory-ready alloy Elite Blendr stem makes a headlight or handlebar computer easy to install and use. The Satellite Plus IsoZone handlebar and Satellite IsoZone lock-on grips add a last line of defense from rough road chatter.


Frame 400 series OCLV carbon, IsoSpeed, internal routing, 3s chain keeper, DuoTrap S compatible, fender mounts, flat mount disc, 142x12mm thru axle
Fork FX Carbon, threadless alloy steerer, hidden fender mounts, flat mount disc, 405mm axle-to-crown, 100x12mm thru axle
Headset 1-1/8" threadless, sealed cartridge bearings
Axles Front: 100 x 12mm thru axle
Rear: 142 x 12mm thru axle
Rims/Wheels Bontrager Tubeless Ready Disc, 32-hole, presta valve
Hubs Front: Formula alloy, Center Lock disc
Rear: Shimano RXC400, Center Lock, Shimano 11-speed freehub
Spokes 14g, stainless steel, black
Tires Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32c
Crankset Shimano GRX RX600
Chainrings 40T
Bottom Bracket Shimano BB71, 86.5mm, PressFit
Chain Shimano HG601
Rear Derailleur Shimano GRX RX812, long cage, 42T max cog
Cassette/Rear Cogs Shimano SLX M7000, 11-42T, 11 speed
Shifters Shimano RS700, 11 speed
Handlebars Bontrager Satellite Plus IsoZone
Tape/Grips Bontrager Satellite IsoZone Plus, lock-on, ergonomic
Stem Bontrager Elite, 31.8mm, Blendr compatible
Brake Levers Shimano MT201 hydraulic disc
Brakes Shimano MT201 hydraulic disc, flat mount, 160mm rotors
Pedals Wellgo M141, resin body, alloy cage
Saddle Bontrager H1
Seat Post Bontrager alloy, 27.2mm, 12mm offset, 330mm length

* Subject to change without notice.


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