What Is a Carbon Fat Bike Frame?
A China carbon fat bike frame is a lightweight, high-performance foundation built from high-modulus carbon fiber. Engineered for extreme conditions like snow, sand, and soft trails, it delivers a superior stiffness-to-weight ratio, supports tires up to 4.8 inches wide, and ensures maximum power transfer with vibration damping for a smoother ride.
The extra tire volume ensures excellent traction and flotation, while the carbon frame keeps the overall bike weight low for efficient power transfer. Whether you're building a racing-ready snow machine or an expedition fat bike, the carbon frame ensures top-tier performance with no compromise.
Explore Our Carbon Fiber Fat Frame Lineup
Carbon Fat Bike Frame 27.5er
•Model: MYB03SN05
•Material: 100% carbon fiber Toray T700
•Type: Fat bike frame 27.5er
•Weave: Matte Black
•Frame Weight: Size 18inch: 1420+-30g
•Seatpost Size: 31.6mm
•Seat clamp Size: 37mm
•Frame Size: 16/18/20/22 inch
•Headtube : Top 1-1/8",down 1- 1/2"
•BB: BSA(120mm BB Shell)
•Rear Spacing: 197mm
•Disc Rotor Size: 160mm(front and rear)
•Wheel & Tire Options: 26×3.8-4.8", 29×2.25-3"(including 29+), 27.5×3.0-4.5"(27.5+)
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Carbon Fat Bike Frame 26er
•Model: MYB03SN02
•Material: 100% carbon fiber Toray T700
•Type: Fat bike frame 26er
•Weave: UD Matt
•Frame Weight: 1520g
•BB: BSA(100mm BB Shell)
•Frame Size: 17/19 inch
•Headtube : Top 1-1/8",down 1- 1/2"
•Rear Spacing: 197mm
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Chinese Carbon Fat Bike Frame
•Model: MYB03SN04
•Material: 100% carbon fiber Toray T700
•Type: Full suspension Fat bike frame
•Weave: UD Matt/Blue painting UD Glossy
•Frame Weight: 2560g
•Seatpost Size: 31.6mm
•Seat clamp Size: 37mm
•Frame Size: 16/18/20 inch
•Headtube : Top 1-1/8",down 1- 1/2"
•BB: BSA(120mm BB Shell)
•Rear Spacing: 197mm
•Disc Rotor Size: 160mm(front and rear)
•Wheel & Tire Options: 26×3.8-4.8"on up to a 100mm rim, 29×2.25-3"(including 29+), 27.5×3.0-3.25"(27.5+)
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Carbon Fat Bike Frame
•Model: MYB03LCM613
•Material: High modulus Toray T700 carbon fiber
•Size: 15'', 17'', 19''
•Headtube: Tapered 1 1/8 "- 1 1/2"head tube, upper 42mm, lower 52mm
•Weight Size : 15'' 1260g, size 17'' 1290g, size 19'' 1320g; +-40g
•Fork: 710g
•Seatpost Diameter: 31.6mm
•Bottom Bracket: BSA*100mm
•Max Tire Clearance: 26'' *4.8'' or 27.5'' * 3.8''
•Chainline: 73mm
•Max Compatible Chainring: 30T
•Brake Type: Post mount disc brake 160mm
•Front Derailleur: Clamp on
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Premium Quality at Competitive Prices
Direct-from-factory pricing means you get Toray carbon fiber without the middleman markup. Our T700/T800/T1000 carbon fiber frames match (or exceed) the quality of big-name brands at a fraction of the cost.
Superior Manufacturing Expertise
With over a decade of experience in carbon fiber bike frame production, we utilize state-of-the-art CNC molds, precision carbon layup techniques, and automated vacuum bagging to ensure consistent frame quality, strength, and weight optimization.
Strict Quality Control
Each frame undergoes multiple inspections, including dimensional accuracy checks, resin distribution analysis, and destructive fatigue testing, ensuring you receive a product that exceeds ISO 4210 safety standards and delivers long-lasting performance. Rigorous QC testing (including fatigue, impact, and stress tests) guarantees reliability.
Flexible OEM & Customization
Carbon World offers tailored services to fit your brand's unique needs, including custom geometry, paint schemes, branding, and packaging solutions. Choose your geometry, finish (matte/gloss/UHD), and decals for a personalized build. OEM/ODM services are available for brands and bulk buyers.
Global B2B Shipping & Support
We have established reliable logistics partnerships, enabling us to ship efficiently worldwide with clear documentation, competitive EXW/FOB pricing, and professional after-sales support to ensure smooth import processes.
Trusted Partner for Brands Worldwide
Brands from North America, Europe, and Oceania rely on us for their fat bike frame supply, praising our responsiveness, technical support, and consistent delivery.
What Size Tire Does Your Carbon Fat Bike Frame Fit?
|
Wheel Size |
Max Tire Width |
Compatible Rim Width |
Typical Use |
|
26" |
Up to 4.8 inches |
65–90mm |
Deep snow, sand dunes, loose trails |
|
27.5" (650B) |
Up to 4.5 inches |
65–85mm |
Trail fat bikes, year-round use |
|
29+ |
Up to 3.0 inches |
40–55mm |
Adventure touring, bikepacking |
Note: All frames use 197mm rear axle spacing, ensuring compatibility with modern wide hubs and drivetrain setups. Chainstay and seatstay clearances are optimized to avoid tire rub even in muddy or high-load conditions.
Manufacturing Process & Quality Control for Carbon Fat Bike Frames
Step 1: Raw Material Selection
Carbon World uses premium Toray T700/T800/T1000 carbon fiber, known for its excellent tensile strength and fatigue resistance. Every batch is inspected for fiber uniformity and pre-impregnation quality before entering production.
Step 2: Precision Carbon Layup
Trained technicians manually layer each frame following a computerized layup schedule. This ensures precise placement of carbon sheets in high-stress zones like the bottom bracket, head tube, and rear triangle for maximum strength-to-weight optimization.
Step 3: High-Pressure Mold Curing
The pre-formed layup is placed into CNC-machined aluminum molds, where it's subjected to high pressure and temperature via EPS (expandable polystyrene) or latex bladders. This process eliminates voids, removes excess resin, and guarantees uniform wall thickness, critical for the wide tubing used in fat bike frames.
Step 4: Post-Curing Inspection
After demolding, each frame undergoes a thorough inspection:
Visual and surface flaw check
Dimensional accuracy using laser tools
Weight confirmation vs. spec tolerance
Rear triangle alignment and dropout straightness
Step 5: Quality Assurance & Batch Testing
To ensure long-term reliability, we perform:
Carbon World Fatigue testing simulating over 100,000 cycles
Static strength testing for head tube and bottom bracket junctions
Compatibility checks for hubs, bottom brackets, and internal routing
Optional third-party testing (ISO 4210 / SGS) based on client needs
Every production batch is thoroughly documented with serial numbers, QC reports, and inspection photos to ensure traceability and quality assurance for our OEM clients.
Looking for a supplier that prioritizes structural integrity and consistency? Our carbon frame production process ensures the durability and performance required for demanding fat bike applications, backed by data, not just claims.
Want to view the Carbon World QC checklist or book a factory audit? Contact us today.
FAQs About Carbon Fat Bike Frames
Q1. How do you ensure batch-to-batch consistency in carbon fiber fat bike frame production?
We implement standardized layering schedules, automated resin infusion, and laser-based dimensional inspections to maintain uniformity across production batches. Statistical process controls (SPC) monitor critical parameters continuously.
Q2. Can your carbon fat bike frames be designed for compatibility with hydraulic disc brakes?
Yes, all our frames feature post-mount disc brake interfaces engineered to support hydraulic brakes with rotors up to 203mm, providing reliable stopping power for fat bike applications.
Q3. Can your fat bike frames be used for electric fat bike (e-fat bike) builds?
Yes. We offer a reinforced Carbon Frame Fat Bike with optional motor mount interfaces and internal battery routing for e-fat applications. OEM customization is available for torque sensors, battery channels, and rear dropout adaptations.
Q4. What finishing options do you offer for carbon fat bike frames?
We provide matte, gloss, satin, raw carbon, and 3K/UD/12K weave finish options. You can also request color decals, custom logos, and anti-UV clear coats. OEM brands may submit Pantone codes for unique paint schemes.
Q5. What packaging do you use to protect the frames during international shipping?
Frames are packed with multi-layer foam, rigid corner protectors, and custom inserts to prevent any movement during transit. All shipments are tested against vibration, impact, and stacking pressure.
Carbon Fiber Bike Frame Testing
Leading carbon fat bike frame manufacturer and supplier in China, specializing in high-quality carbon fiber products with OEM/ODM services. Our factory offers carbon bike rims, fairings, and custom carbon fiber solutions for sports, automotive, and industrial use. Contact us for a quote.
