TREK FX SPORT AL 3

FX Sport AL 3

Lightweight. Versatile. Adventure-ready.
The FX Sport AL 3 is a lightweight and durable aluminum fitness bike built for riders who love exploring beyond the pavement. It blends speed, comfort, and capability with a reliable Alpha Gold Aluminum frame, 10-speed Shimano CUES drivetrain, hydraulic disc brakes, and grippy Bontrager Girona gravel tires—perfect for fast commutes, fitness rides, or weekend adventures.

Frameset

• Frame: Alpha Gold Aluminum, internal cable routing, rack and fender mounts, post-mount disc, kickstand mount, 135x5mm QR

• Fork: Dual Sport carbon, internal brake routing, fender and rack mounts, ThruSkew 5mm QR

Weight: M - 11.10 kg (24.48 lbs)
Weight limit: Maximum combined weight (bike, rider, and cargo) — 300 lbs (136 kg)

Drivetrain

• Shifters: Shimano CUES U6000 with optical gear display, 10-speed

• Rear Derailleur: Shimano CUES U6000 GS

• Crankset:

  • XS, S, M – Prowheel alloy, 40T narrow-wide ring, 170mm

  • L, XL – Prowheel alloy, 40T narrow-wide ring, 175mm

• Cassette: Shimano CUES LG300 LINKGLIDE, 11–48T, 10-speed

• Chain: Shimano LG500

• Pedals: Wellgo nylon body with alloy cage

Wheels

• Front Hub: Formula DC-20, alloy, 6-bolt, 100x5mm

• Rear Hub: Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm

• Skewers: Front 139x5mm bolt-on / Rear 152x5mm QR

• Rims: Bontrager Connection, double-wall, 32-hole, 20mm width, Schrader valve

• Tires: Bontrager Girona Comp, wire bead, 60 TPI, 700x42mm

Components

• Saddle: Bontrager Verse Short, chromoly rails, 145mm width

• Seatpost:

  • XS, S, M – Bontrager alloy, 27.2mm, 12mm offset, 330mm length

  • L, XL – Bontrager alloy, 27.2mm, 12mm offset, 400mm length

• Handlebar:

  • XS, S – Bontrager Comp Lowriser, 31.8mm, 15mm rise, 600mm width

  • M, L – Bontrager Comp Lowriser, 31.8mm, 15mm rise, 660mm width

  • XL – Bontrager Comp Lowriser, 31.8mm, 15mm rise, 690mm width

• Grips: Trek Line Comp, nylon lock-on

• Stem:

  • XS, S – Bontrager Elite, 31.8mm, Blendr-compatible, 7°, 70mm

  • M, L – Bontrager Elite, 31.8mm, Blendr-compatible, 7°, 80mm

  • XL – Bontrager Elite, 31.8mm, Blendr-compatible, 7°, 90mm

• Brakes: Shimano hydraulic disc, MT201 levers with UR300 calipers

• Rotors: Shimano RT26, 6-bolt, 160mm