The Sun Ringle Duroc 40 is a wide, confidence-inspiring MTB rim built for demanding terrain. Ideal for riders seeking maximum stability, traction and tubeless performance.
The Duroc 40 is engineered for riders who push hard on technical trails, fast descents and rocky sections. Its wide 40 mm external profile gives outstanding tire support, boosting traction and control on loose surfaces. Designed to handle the intensity of enduro, freeride and e-MTB use, this rim delivers durability and precision even under heavy loads.
Fully tubeless-compatible, it allows lower pressures, smoother rolling and increased puncture protection. A strong 6061-T6 alloy construction and disc-brake design make it an excellent platform for building a reliable 29” wheel ready for tough off-road adventures.
Technical specification
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Rim size (ETRTO): 622
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Wheel size: 29"
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Material: 6061-T6 aluminum
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Type: double-wall
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Spoke holes: 32
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Valve: Presta (FV)
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Tire compatibility: Tubeless / Tubeless Ready
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Brake type: disc
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Color: black
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Weight: 550 g (29")
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Outer width: 40 mm
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Inner width: 36 mm
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Height: 16.5 mm
Shipping:
We ship within Poland, across the entire European Union, and worldwide.