- DK
- Xiamen China
- 15-30 Days
- monthly 10000+pcs
- D40TL-30
The DK D40TL-30 is a versatile 40mm mid-section carbon road rim featuring a 30mm wide profile, engineered for the perfect balance of aerodynamics, lightweight climbing, and 700C tubeless efficiency.
KEY PRODUCT FEATURES
Balanced All-Round Performance
Engineered with a 40mm mid-section profile, offering the perfect compromise between lightweight climbing agility and high-speed aerodynamic efficiency for all types of road terrain.
Agile & Responsive Handling
Combines a lightweight structural profile with exceptional lateral stiffness to deliver precise cornering control, instant pedal response, and confident high-speed stability.
Reinforced Spoke Hole Structure
Optimized spoke hole design maximizes power delivery compatibility while maintaining an optimized rim weight, ensuring explosive acceleration and durable structural strength for road racing.
Optimized Road Rim Dimensions
Features a versatile 40mm depth and wide 30mm outer width (24mm internal), creating a superior tire profile for modern road tires (25c-32c), lowering rolling resistance and maximizing traction.
Premium Carbon Fiber Construction
Crafted using advanced Toray T800~T1100 carbon fiber with precise lamination layups, guaranteeing ultra-lightweight performance without compromising structural integrity.
SPECIFICATIONS
Dimension & Size
Model: D40TL-30
Size: 700C (Diameter 622mm)
Outer Width: 30mm
Inner Width: 24mm
Depth: 40mm
ERD: 559mm
Weight & Carbon Layup
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T800: 365 ± 15g
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T1000: 335 ± 15g
-
T1100: 300 ± 15g
Featured Products
Product Features and Advantages
1. Featherweight All-Round Performance
The D40TL-30 rim series offers multiple weight options across different carbon layups. The flagship T1100 version weighs as low as 300 ± 15g, while the T800 version is controlled at 365 ± 15g, establishing a new benchmark for versatile road rims. Precision carbon layup drastically reduces rotational mass, providing rapid acceleration and conserving rider energy for long, fast road rides.
2. Versatile 40mm Depth / 30mm Width Profile
Features a 24mm internal width with a 30mm outer width, optimized for modern high-performance road tires. Best paired with 25c-32c tires to deliver an aerodynamic contact patch and enhanced cornering confidence. Offers superior vibration damping for smooth rolling over rough tarmac and broken pavement.
3. Mid-Section Crosswind Stability
The 40mm rim depth perfectly balances aerodynamic speed with crosswind stability. Provides nimble, razor-sharp handling on technical descents and unpredictable windy conditions. Achieves the ideal balance between structural stiffness and all-weather control for ultimate confidence.
4. Impact-Resistant Carbon Toughness
Reinforced rim shoulders withstand potholes and harsh road impacts with ease. Advanced carbon layup technology absorbs shocks effectively, ensuring reliable performance in demanding environments. Engineered for ultimate durability, delivering long-lasting reliability even in the toughest road races.
Quality Control
Clean burrs & residues:
Rim Diameters Check:
Cleaning:
Packing:
Testing
Lateral Rigidity Test
Quantifies rim resistance to lateral deformation under controlled high-load testing.
Radial Rigidity Test
Quantifies rim resistance to vertical deformation under controlled heavy-load testing.
UCI Drop Weight Impact Test
Simulates road impacts to evaluate rim toughness.
Spoke Hole Pull Out Test
Evaluates spoke tension resistance and structural limits under high tensile loads.
Inter-Hole Stiffness Test
Measures stiffness between adjacent spoke holes and load-bearing limits under applied pressure.
Pneumatic Pressure Resistance Test
Evaluates pneumatic pressure resistance and rim deformation under high inflation loads.
Greenhouse Test
Evaluates thermal stability and dimensional changes of inflated rims under high-temperature baking.
Inflated Rim Spoke Tension
Evaluates spoke tension stability and lateral runout changes of inflated rims under tire pressure.
Product Video
