The Trek FX 1 Gen 4 is a lightweight hybrid fitness bike for commuting, recreational riding, fitness cycling, bike paths and everyday city travel. It pairs a flat handlebar with road-bike efficiency. It is Trek's entry-level fitness hybrid.
The frame is Alpha Gold Aluminum with a steel fork and internal cable routing. It has mounts for racks and fenders. The Gen 4 redesign added cleaner frame integration and wider tire clearance. The bike rolls on 700c wheels with 700x35c tires, and the frame takes tires up to 40c.
It has a Shimano 2x8 (16-speed) drivetrain and Tektro mechanical disc brakes. The geometry is upright, which reduces strain on the neck, shoulders and back. The Small frame generally fits riders about 5'1" to 5'5".
- Frame
- Alpha Gold Aluminum
- Fork
- Steel
- Frame size
- Small
- Fits rider height
- Approx. 5'1"–5'5"
- Color
- Black
- Weight
- Approx. 27 lbs / 12.2 kg
- Drivetrain
- Shimano Tourney / Altus mix
- Speeds
- 2x8 (16-speed)
- Shifters
- Shimano Altus
- Front derailleur
- Shimano Tourney
- Rear derailleur
- Shimano Altus
- Crankset
- Forged alloy, 46/30
- Cassette
- Shimano 11-32
- Brakes
- Tektro mechanical disc