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2021

FX 4 Disc

Model 5253100

FX 4 is where performance fitness bikes begin. A lightweight aluminum frame, a wealth of performance features, and a 1x11 drivetrain that simplifies shifting without sacrificing gear range give you the capability to take on longer commutes and faster recreational rides without sacrificing the versatility that has made FX Trek's best-selling lineup ever.

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Retailer price

Retailer pricing applies when you purchase goods online that the shop has in stock today. Order is subject to retailer acceptance.

MSRP

Manufacturer’s Suggested Retail Price. This is the price you’ll pay ordering directly from Trek. Total price including shipping and taxes may be seen in the cart.

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*Please note - spec applies to all sizes unless listed separately

Frame Alpha Gold Aluminum, DuoTrap S compatible, internal cable routing, flat mount disc, rack & fender mounts, 135x5mm QR
Fork FX Carbon, rack and fender mounts, flat mount disc, 405mm axle-to-crown, ThruSkew 5mm QR
Hub front Formula DC-20, alloy, 6-bolt, 5x100mm QR
Skewer front 130x5mm QR, ThruSkew
Hub rear Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm QR
Skewer rear 152x5mm QR
Rim Bontrager Affinity Disc, Tubeless Ready, 32-hole, 21mm width, Presta valve
Spokes 14g stainless steel, black
Tire Bontrager H2 Comp, wire bead, 30tpi, 700x32mm
Max tire size 700x38mm without fenders, 700x35mm with fenders
Shifter Shimano Deore M5100, 11 speed
Rear derailleur Shimano Deore M5100, long cage, Shadow Plus
Crank ProWheel alloy, 42T, 175mm
Bottom bracket Prowheel PW-BB73+, 68/73mm, threaded external
Cassette Shimano Deore M5100, 11-51, 11 speed
Pedal Bontrager City pedals
Saddle Bontrager H1
Seatpost Bontrager alloy, 27.2mm, 12mm offset, 330mm length
*Handlebar Size: S, M
Bontrager Satellite Plus IsoZone, alloy, 31.8mm, 15mm rise, 600mm width
Size: L, XL
Bontrager Satellite Plus IsoZone, alloy, 31.8mm, 15mm rise, 660mm width
Grips Bontrager Satellite IsoZone Plus, lock-on, ergonomic
*Stem Size: S
Bontrager Elite, 31.8mm, Blendr compatible, 7 degree, 90mm length
Size: M, L
Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 100mm length
Size: XL
Bontrager Elite, 31.8mm clamp, Blendr compatible, 7 degree, 110mm length
Headset 1 1/8'' steel threadless
Brake Shimano hydraulic disc, MT201 lever, UR300 caliper
Brake rotor Shimano RT26, 6-bolt, 160mm
Weight M - 11.52 kg / 25.4 lbs
Weight limit This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 300 pounds (136 kg).

We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, materials, and pricing. Due to supply chain issues, compatible parts may be substituted at any time without notice. Prices shown are manufacturer's suggested retail prices.

Bike and frame weights are based off pre-production painted frames at time of publication. Weights may vary in final production.