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Carbon Fiber Sporting Goods

20" Tubeless Carbon Rim 35mm Asymmetric U-Shape – 380g for Junior, Youth & Small-Wheel Bikes

20" Tubeless Carbon Rim 35mm Asymmetric U-Shape – 380g for Junior, Youth & Small-Wheel Bikes

$230.00 USD
$300.00 USD $230.00 USD
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🚚 预计发货：3天内

20-Inch Tubeless Carbon Rim – Asymmetric 35mm U-Shape, Superlight 380g

Short Answer: This 20-inch tubeless carbon rim (35mm deep, 16mm inner width, 23mm outer width) is engineered for junior and youth cyclists seeking responsive, lightweight performance for competitive and urban builds. Weighing only 380g (superlight) or 430g (standard), it is suitable for riders up to 100 kg and supports tubeless setups from 45–65 psi.

Technical Specifications

Parameter Specification
Intended Use Junior/youth racing, high-performance small-wheel builds
Rim Diameter (ERD) 20" (349mm; ERD: 465mm)
Rim Depth 35mm
Rim Width (Inner/Outer) 16mm / 23mm
Weight Superlight: 380g ±15g; Standard: 430g ±15g
Material High-modulus Toray carbon fiber
Profile Asymmetric U-Shape
Tubeless Ready Yes
Rider Weight Limit 100 kg
Warranty 3 years
Certifications Tested to EN14781; quality controlled to ISO 4210

Use-Case Mapping

  • Junior & Youth Racing: Responsive acceleration and low rotating mass for riders aged 8–16.
  • Urban Mobility: Durable, lightweight option for premium small-wheel city bikes under 100 kg rider weight.
  • Custom Builds for Brands/Teams: Fully customizable in hole count, branding, and finish.

Buyer FAQs

  • Q: Is a 35mm carbon rim optimal for youth bike performance?
    A: Yes. The 35mm depth and U-shape enhance aerodynamic efficiency and lateral stiffness, as verified in lab testing (EN14781).
  • Q: What weight should I expect for a quality 20-inch tubeless carbon rim?
    A: Superlight variants weigh 380g ±15g. Industry competitors range 360–430g.
  • Q: Are asymmetric rims better for junior frames?
    A: Asymmetric profiles help balance spoke tension, improving long-term durability in small-format, high-spoke-count builds.

Known Trade-Offs

  • While a 16mm inner width supports race tires (23–32mm), wider tire setups (over 32mm) may require different models.

Warranty & Support

Includes a 3-year manufacturer's warranty covering material and workmanship defects. Customization and OEM options available for brand partners.

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