2021 Trek FX Sport Carbon 4
High-end component level carbon frame fitness bike
View on www.trekbikes.com
- MSRP $1,699
- Weight 21.1 lbs / 9.6 kg
- Suspension Rigid
- Frame Carbon
- Fork Carbon
- Wheels 700c
- Drivetrain 1 × 11
- Groupset GRX 800, 105
- Brakes Hydraulic Disc
1 × 11 — 11 speed
The 2021 FX Sport Carbon 4 is easier to ride up hills than similar bikes.
The 2021 FX Sport Carbon 4 won‘t keep up with similar bikes while riding downhill or sprinting.
Estimated spec level of the FX Sport Carbon 4 compared to other fitness bikes. 99 Spokes analyzes the build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more to estimate the overall spec level of each bike.
This bike
Other fitness bikes
| 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 |
| Bottom Bracket | Shimano BB71, 86.5mm, PressFit |
| Headset | 1-1/8'' threadless, sealed cartridge bearings |
| Stem | Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 110mm length |
| Handlebar | Bontrager Satellite Plus IsoZone, alloy, 31.8mm, 15mm rise, 660mm width |
| Saddle | Bontrager H1 |
| Seatpost | Bontrager alloy, 27.2mm, 12mm offset, 330mm length |
| Grips | Bontrager Satellite IsoZone Plus, lock-on, ergonomic |
| Rear Derailleur | Shimano GRX RX812, long cage, 42T max cog |
|---|---|
| Crank | Shimano GRX RX600, 40T ring, 175mm length |
| Shifters | Shimano RS700, 11 speed |
| Cassette | Shimano SLX M7000, 11-42, 11 speed |
| Chain | Shimano HG601 |
| Brakes | Shimano MT201 hydraulic disc, flat mount, 160mm rotor |
| Rims | Bontrager Tubeless Ready Disc, 32-hole, presta valve |
|---|---|
| Front Hub | Formula alloy, centerlock disc, 100x12mm thru-axle |
| Rear Hub | Shimano RXC400, centerlock, Shimano 11-speed freehub, 142x12mm thru axle |
| Tires | Bontrager R1 Hard-Case Lite, wire bead, 60 tpi, 700x32c |
| Disk Rotors | Shimano RT10, 160mm, centerlock |
2021 Trek FX Sport Carbon 4
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