2025 Trek FX 3 Gen 4 – Hybrid Bike
Specifications
| Specification | Details | 
| Model | FX 3 Gen 4 | 
| Vehicle Category | Hybrid Bike | 
| Application | Fitness, commuting, casual riding | 
| Starting Price (2025) | $1,149.99 USD | 
| Color Options | Galactic Grey, Hex Blue | 
| Sizes | S, M, L, XL, XXL | 
Frame & Drivetrain
| Specification | Details | 
| Frame | Alpha Gold Aluminum, DuoTrap S-compatible, internal cable routing, rack & fender mounts, post mount disc, kickstand mount, 135x5mm QR | 
| Fork | FX carbon, flat-mount disc, rack mounts, 410mm axle-to-crown, ThruSkew 5mm QR | 
| Drivetrain Compatibility | Shimano CUES U6000, 1x10-speed | 
| Dropouts | 135x5mm QR (F), 135x5mm QR (R) | 
| Crank | Prowheel alloy, 40T narrow-wide ring, 170mm length (XS, S, M), 175mm length (L, XL, XXL) | 
| Chain | Shimano LG500 | 
| Rear Derailleur | Shimano CUES U6000 GS | 
| Shifters | Shimano CUES U6000, 10-speed | 
| Cassette | Shimano CUES LG300, LINKGLIDE, 11-48T, 10-speed | 
Components & Features
| Specification | Details | 
| Seating | Bontrager Sport, steel rails, 155mm width (XS, S, M), 145mm width (L, XL, XXL) | 
| Cargo Capacity | Rack & fender mounts, kickstand mount | 
| Wheels/Tyres | Bontrager H2 Comp, wire bead, 30 tpi, 700x35mm | 
| Wheel Size | 700c | 
| Brakes | Shimano MT201 hydraulic disc, UR300 caliper, 160mm rotor | 
| Brake Levers | Shimano MT201 hydraulic | 
| Handlebar | Bontrager Satellite Plus IsoZone, alloy, 31.8mm, 15mm rise, width: 600mm (XS, S, M), 660mm (L, XL, XXL) | 
| Stem | Bontrager Comp, 31.8mm, Blendr compatible, 7 degree, length: 90mm (XS, S), 100mm (M, L, XL, XXL) | 
| Headset | 1-1/8" integrated, sealed cartridge bearing | 
| Saddle | Bontrager Sport, steel rails, 155mm width (XS, S, M), 145mm width (L, XL, XXL) | 
| Seatpost | Bontrager alloy, 27.2mm, 12mm offset, 330mm length | 
| Seatpost Clamp | Knurled, quick release | 
| Grips | Bontrager Satellite IsoZone Plus, lock-on, ergonomic | 
| Front Hub | Formula DC-20, alloy, 6-bolt, 5x100mm QR | 
| Rear Hub | Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR | 
| Rims | Bontrager Tubeless Ready Disc, 32-hole, Presta valve | 
| Spokes | Stainless steel, 14g | 
| Pedals | Bontrager City pedals | 
| Exterior Features | Rack & fender mounts, kickstand mount, DuoTrap S-compatible, internal cable routing | 
| Weight | 11.50 kg (M) | 

