SKU: 1198837112
fitnessbike trek fx sport 4

fitnessbike trek fx sport 4 Trek FX Sport 4

Sale price$26.76 Regular price$29.73
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Ships within 48 hours · Estimated delivery Nov 15 - Nov 20

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Description

fitnessbike trek fx sport 4 Trek FX Sport 4Trek FX Sport 4 Crystal White Supernova Experience Speed, Comfort, and Control The Trek FX Sport 4 in Lithium Grey is the ultimate carbon fiber fitness bike designed for riders seeking the agility of a lightweight road bike paired with the comfort and handling of a flat handlebar. With its 1x drivetrain and high performance components, this bike excels in solo workouts and spirited group rides alike. Key Features: Carbon Fiber Frame: Crafted from 400

Trek FX Sport 4 - Crystal White / Supernova

Experience Speed, Comfort, and Control

The Trek FX Sport 4 in Lithium Grey is the ultimate carbon fiber fitness bike designed for riders seeking the agility of a lightweight road bike paired with the comfort and handling of a flat handlebar. With its 1x drivetrain and high-performance components, this bike excels in solo workouts and spirited group rides alike.

Key Features:

  1. Carbon Fiber Frame: Crafted from 400 Series OCLV Carbon, the frame and fork offer a perfect balance of stiffness, compliance, and lightweight construction, ensuring a smooth and responsive ride experience.

  2. 1x Drivetrain: The Shimano CUES 10-speed drivetrain simplifies shifting while providing a wide range of gearing options, delivering optimal performance on varied terrain.

  3. Hydraulic Disc Brakes: Shimano hydraulic disc brakes offer reliable stopping power in all weather conditions, providing safety and control during fast descents and sudden stops.

  4. Tubeless Ready Wheels: Lightweight and durable tubeless-ready wheels combined with Bontrager GR1 Expert gravel tires ensure fast-rolling efficiency and enhanced traction on different surfaces.

  5. Comfortable Ergonomics: Equipped with vibration-absorbing handlebars and ergonomic grips, the FX Sport 4 ensures a comfortable and fatigue-free riding experience, even on longer rides.

Why Choose the FX Sport 4:

  • Versatile performance for both solo workouts and group rides, thanks to its lightweight carbon construction and responsive handling.
  • Simplified shifting with the 1x drivetrain, offering a wide range of gears with the convenience of a single shifter.
  • Exceptional value for a carbon fiber fitness bike, providing superior ride quality without the premium price tag.

Why You'll Love It:

  • Enjoy the simplicity and efficiency of a 1x drivetrain, offering a wide range of gearing options with minimal maintenance.
  • Experience the smooth and responsive ride quality of carbon fiber, enhancing your comfort and performance on every ride.
  • Conquer fast-paced group rides with confidence, knowing that the FX Sport 4 is capable of keeping up with the pack.
  • Customize your ride with ease, thanks to the bike's compatibility with a wide range of accessories including mudguards, lights, and more.

Elevate your fitness journey with the Trek FX Sport 4 - Lithium Grey, and discover the perfect blend of speed, comfort, and control for your riding adventures.

 

Specification

Trek FX Sport 4 Specification

FRAMESET
Frame with Fork 400 series OCLV Carbon, internal routing, 3s chain keeper, DuoTrap S compatible, mudguard mounts, flat mount disc, 135x5 mm ThruSkew
Fork Carbon, hidden mudguard mounts, flat mount disc, 100x5 mm thru-skew

 

WEIGHT
Weight M - 10.46 kg / 23.07 lbs
Weight Limit
This bike has a maximum total weight limit (combined weight of bicycle, rider, and cargo) of 136 kg (300 lb)

 

DRIVETRAIN
Shifter  Shimano CUES U6000 w/ optical gear display, 10-speed
Rear Derailleur Shimano CUES U6000 GS
Crank ProWheel alloy, 42T narrow-wide ring, 175 mm length
Cassette Shimano CUES LG300, LINGGLIDE, 11-48, 10-speed
Chain Shimano LG500
Pedal Bontrager City Pedals

 

WHEELS
Hub Front Formula CL-51 alloy, 100x5 mm QR
Skewer Front
135x5 mm bolt-on
Hub Rear Formula CL-52 alloy, 135x5 mm QR
Skewer Rear 169x5 mm bolt-on
Rim Bontrager Paradigm, Tubeless Ready, 32-hole, 21 mm width, Presta vavle
Spokes 14 g stainless steel, black
Tyre Bontrager GR1 Expert, Hard-Case Lite, wire bead, 60 tpi, 700x40 mm

 

COMPONENTS
Saddle Bontrager H1
Seatpost Bontrager alloy, 27.2 mm, 12 mm offset, 330 mm length.
Handlebar

Size: XS, S
Bontrager Satellite Plus IsoZone, alloy, 31.8 mm, 15 mm rise, 600 mm width

Size: M, L, XL
Bontrager Satellite Plus IsoZone, alloy, 31.8 mm, 15 mm rise, 660 mm width

Grips Bontrager Satellite IsoZone Plus, lock-on, ergonomic
Stem

Size: XS
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 90 mm length

Size: S, M
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 100 mm length

Size: L, XL
Bontrager Elite, 31.8 mm, Blendr-compatible, 7-degree, 110 mm length

Brake

Shimano hydraulic disc, MT201 lever, UR300 calliper

Brake Rotor

Shimano RT10, CentreLock, 160 mm

 

Sizing

Trek FX Sport 4 Sizing

Size  Rider Height Inseam
XS 147 - 155 cm (4'10" - 5'1") 69 - 73 cm (27" - 29")
S 155 - 165 cm (5'1" - 5'5") 72 - 78 cm (28" - 31")
M 165 - 175 cm (5'5" - 5'9") 77 - 83 cm (30" - 33")
L 175 - 186 cm (5'9" - 6'1") 82 - 88 cm (32" - 35")
XL 186 - 197 cm (6'1" - 6'6") 87 - 93 cm (34" - 37")

 

Geometry

Trek FX Sport 4 Geometry

All measurements are provided in cm unless otherwise stated.

Sizing Table

Frame Size Letter XS S M L XL
Wheel Size 700c 700c 700c 700c 700c
A - Seat Tube 35.6 40.6 45.7 50.8 55.9
B - Seat Tube Angle 75.0°
74.5°
74.0°
73.5°
72.5°
C - Head Tube Length 11.5 14.0 16.5` 19.0 21.5
D - Head Angle 70.0°
70.5°
71.0°
71.5°
72.5°
E - Effective Top Tube 52.8 54.3 56.4 58.3 61.3
F - Bottom Bracket Height 28.5 28.5 28.5 28.5 28.5
G - Bottom Bracket Drop 6.5 6.5 6.5 6.5 6.5
H - Chainstay Length 44.2 44.2 44.2 44.2 V
I - Offset 5.0 5.0 5.0 5.0 5.0
J - Trail 7.4 7.1 6.8 6.4 5.8
K - Wheelbase
104.7 105.4 106.5 107.5 108.2
L - Standover 70.8 75.1 78.7 81.2 84.8
M - Frame Reach 38.3 38.5 39.3 40.0 41.0
N - Frame Stack 54.3 56.8 59.3 62.0 64.8

 

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 1198837112

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Customer Review
Lowell, US
★★★★★ 1
Mediocre and lacks required fabric content label
Color: 01 Off White, Size: Twin (60" x 80"), Color: 01 Off White, Size: Twin (60" x 80")
I am a "blanket person," meaning I love to be cozy, curled up on the couch, watching movies with my family, and using many different layers and types of blankets on my bed for different seasons. I was excited to order this 3D bubble fleece blanket by Lotus Karen because I have another 3D bubble fleece throw blanket that I absolutely love. The other one has a sherpa lining, which makes it a bit too warm for warmer seasons. This one by Lotus Karen is unlined, which I expected as the listing doesn't say it is lined. However, I'm feeling let down over the softness of the fleece compared to my other one. They all look similar in list photos, but they do not feel the same. After I unfurled this one onto my bed to let it fluff up, which it did after 90-minutes, but instead of the pile feeling plush and silky (like faux rabbit) this one feels more rough. It's not as high quality fleece, even though it looks the same in photos. Undeterred, I still really wanted to like this blanket and went to put it into the laundry, hoping it would bring out the best in it. However, I noticed that there is no fabric content label at all. Not just missing care instructions, but no label of any kind. Under the Federal Trade Commission (FTC) Textile Products Identification Act, it is a violation of United States federal law to sell a textile product that fails to plainly disclose its constituent fiber percentages, country of origin, and registered manufacturer identity physically attached to the product. Having the information on the online listing does not meet this requirement. Because the material is somewhat mediocre, I would have given it three stars. But because it fails to meet basic consumer protection laws, it loses all.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
L
LP
Natrona Heights, US
★★★★★ 5
VERY SOFT; MY DOG’S ALREADY APPROPRIATED IT
Color: 01 Off White, Size: Twin (60" x 80")
You know a blanket’s soft when my dog immediately tries to appropriate it. This is incredibly soft, and actually pretty light; it makes for a good spring or summer blanket, or a throw in addition to something else in colder weather. (The twin is big enough that you can double it up over yourself to make it thicker in colder months.) I’m not sure while it’s called a “bubble” blanket - there is a very gentle egg crate shape to it, but it’s not rigid at all, and not dual-layer or filled with air or anything. It’s a very comfy throw (my dog can also attest to that) and for ~$20 (at the time of this review), it’s a great deal. I haven’t noticed any shedding, either, but I’m going to wash it on as gentle a cycle I can, to be safe.
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Reviewed in the United States on May 31, 2026
I
Verified Purchase
Isabel Cristina Prince
Boise, US
★★★★★ 5
This Blanket Feels Like a Warm Hug 🖤”
Size: Throw50" x 60", Color: Black, Size: Throw50" x 60", Color: Black
This faux fur throw blanket is incredibly soft and cozy, making it perfect for relaxing on the couch or adding extra warmth to a bed. The fluffy texture feels plush and comfortable, while the dark color gives it a modern and elegant look. I like how it instantly makes the space feel more inviting and stylish. It’s lightweight enough for everyday use but still feels warm and comfortable during cooler evenings. The material also looks beautiful draped over furniture as part of the décor. Overall, it’s a great decorative and functional blanket for anyone looking to add comfort and a cozy touch to their living space.”
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
W
Verified Purchase
Wendy Ferrie
Phoenix, US
★★★★★ 5
Absolutely Luxurious, Mushu-Approved, and Easy to Care For!
Size: Throw50" x 60", Color: Pink, Size: Throw50" x 60", Color: Pink
​I am absolutely thrilled with this faux fur blanket! From the moment I pulled it out of the packaging, the quality was immediately apparent. The fur is incredibly plush, thick, and unbelievably soft, it truly feels like wrapping up in a cloud. It's the perfect weight, too: cozy on a chilly evening, but not stifling. ​What really sets this blanket apart is the quality and durability. I can confirm that this blanket does not pill, which is a huge bonus. Even better, it holds up perfectly in the wash. I've washed it several times now, and there has been zero shedding, either in the washer/dryer or after it comes out. It remains just as soft, fluffy, and luxurious as the day I bought it, making maintenance incredibly easy. ​But the real testament to this blanket's quality comes from my dog, Mushu! I bought it for myself, but it has quickly become his favorite spot in the house. If he's not actively on a walk or eating, you can guarantee he's curled up on "the fuzzy blanket," completely buried in the softness. ​If you're looking for a blanket that is the definition of comfort, luxury, and warmth, and is also durable and holds up perfectly to washing, look no further. This is a must buy!
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Reviewed in the United States on October 11, 2025
F
Verified Purchase
Felicia
Boise, US
★★★★★ 5
Soft and cozy!
Size: Throw50" x 60", Color: Teal
My daughter loves it. The quality is good. The color is vibrant!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026

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