Trek FX 4 Disc 2021
Bike details
Key information split into simple groups.
Bike summary
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Frame Aluminum
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Wheels 700c
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Groupset Deore
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Suspension Rigid
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Drivetrain 1 × 11
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Brakes Hydraulic Disc
Recommended size guide.
SM
154cm - 166cm
MD
164cm - 176cm
LG
174cm - 187cm
XL
185cm - 197cm
Parts list
Main components, grouped by system.
Bike components
Frame
Frame
Alpha Gold Aluminum, DuoTrap S compatible, internal cable routing, flat mount disc, rack & fender mounts, 135x5mm QR
Suspension Fork
FX Carbon, rack and fender mounts, flat mount disc, 405mm axle-to-crown, ThruSkew 5mm QR
Drivetrain
Rear Derailleur
Shimano Deore M5100, long cage, Shadow Plus
Shift Levers
Shimano Deore M5100, 11 speed
Cassette
Shimano Deore M5100, 11-51, 11 speed
Crank
ProWheel alloy, 42T, 175mm
Bottom Bracket
Prowheel PW-BB73+, 68/73mm, threaded external
Wheels
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 Affinity Disc, Tubeless Ready, 32-hole, 21mm width, presta valve
Spokes
14g stainless steel
Tires
Bontrager H2 Comp, wire bead, 30tpi, 700x32c
Brakes
Brakes
Shimano MT201 hydraulic disc, flat mount, 160mm rotor
Disk Rotors
Shimano RT26, 6-bolt,160mm
Cockpit
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
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
Headset
1-1/8'' threadless, sealed cartridge bearings
Seat
Saddle
Bontrager H1
Seatpost
Bontrager alloy, 27.2mm, 12mm offset, 330mm length
Fit data
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.37 mm | 1.41 mm | 1.47 mm | 1.56 mm |
| Bottom Bracket Height | 296 mm | 296 mm | 296 mm | 296 mm |
| Front Center | 617 mm | 618 mm | 628 mm | 628 mm |
| Rake | 50 mm | 50 mm | 50 mm | 50 mm |
| Trail | 75 mm | 68 mm | 68 mm | 62 mm |
| Stack | 537 mm | 555 mm | 584 mm | 616 mm |
| Reach | 391 mm | 395 mm | 396 mm | 396 mm |
| Top Tube Length | 540 mm | 555 mm | 569 mm | 585 mm |
| Seat Tube Angle | 74.5 ° | 74 ° | 73.5 ° | 73 ° |
| Seat Tube Length | 381 mm | 445 mm | 508 mm | 572 mm |
| Head Tube Angle | 70.5 ° | 71.5 ° | 71.5 ° | 72.5 ° |
| Head Tube Length | 115 mm | 130 mm | 160 mm | 190 mm |
| Chainstay Length | 448 mm | 448 mm | 448 mm | 448 mm |
| Wheelbase | 1057 mm | 1058 mm | 1068 mm | 1068 mm |
| Bottom Bracket Drop | 65 mm | 65 mm | 65 mm | 65 mm |
| Standover Height | 702 mm | 736 mm | 797 mm | 846 mm |
| Wheels | 700 | 700 | 700 | 700 |
| Rider Min Height | 154 cm | 164 cm | 174 cm | 185 cm |
| Rider Max Height | 166 cm | 176 cm | 187 cm | 197 cm |
Model Overview
FX 4 Disc is part of the Trek Fx model. 128 bikes variations carry this model name so far. You can get a glimpse at all models from 2021, by clicking on this link.
Model range prices
Trek FX 1 Stagger 2021 is the most affordable bike of this model and has a price of 499$. On the other hand, Trek FX Sport 6 2021, is the most expensive and costs 2199$.
Safety
When you go for a ride, don’t forget to put your helmet on. Moreover, ride with traffic, not against it. This will help you stay visible to drivers and also makes it easier for them to see you.
Average price for Fitness bikes
Our math shows that the average cost of a dependable Fitness bike is 656$. However, you could also get a good Fitness bike even if you pay a lower amount than the average price. In conclusion, always check bike reviews and their components before making a purchase to make sure you don’t overpay.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 1049$. Doing a quick comparison, we notice that FX 4 Disc price is 59.91% more expensive than the average cost of a Fitness bike.
Fitness bikes average weight
If we make a quick analysis of the average weight of a Fitness bike, we get 11.24 kg (24.78 lbs). An easier bike will give you a big advantage in climbs. However, a heavier bike can gain speed when you descend.
With a weight of 11.52 kg (25.4 lbs), Trek bike is slightly heavier than average. In conclusion, the average Fitness bike weighs 2.49% less than FX 4 Disc.
Internal Cable Routing
Moreover, this bike comes with internal cable routing allowing you to keep the cables in a good condition. It also makes it look more professional.
FX 4 Disc components
Fork material
FX 4 Disc has a carbon fork, so, its weight is considerably lighter than one made out of steel. However, they cost a bit more than steel forks.
Wheels size
The FX 4 Disc 2021 bike is equipped with 700c aluminum wheels when leaving the factory. There is no doubt, that 700c wheels are very popular on all road bike models. However, these wheels don’t perform so well when passing over obstacles.
Brakes
When you want to stop the bike in time, the brakes are vital. The FX 4 Disc has Hydraulic Disc brakes. Hydraulic disc brakes provide amazing stopping power, no matter what the terrain. To sum up, you can ride your bike with confidence.
Sizes
Trek FX 4 Disc bike has 4 sizes, in the range of 154 cm – 197 cm (5.05 ft – 6.46 ft). In conclusion, it won’t take much to find one that’s right for you.
