SHIMANO BB-RS501 Hollowtech II Italian Bottom Bracket

★★★★★ 4.2 40 reviews

$25.83
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$25.83
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Free shipping Free 30-day returns

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Product details

Management number 218173939 Release Date 2026/05/03 List Price $10.33 Model Number 218173939
Category

Elevate your cycling performance with the BB-RS501 Hollowtech II Italian Bottom Bracket, a precision-engineered component designed for durability, efficiency, and seamless integration. Crafted with materials and innovative technology, this bottom bracket is ideal for road cyclists seeking reliable and long-lasting drivetrain performance. Materials & Construction Constructed with anodized aluminum cups, the BB-RS501 offers an optimal balance of strength and lightweight performance. The anodized finish provides enhanced corrosion resistance, ensuring long-term durability even in challenging riding conditions. Its compact design makes it an excellent upgrade for riders looking to maximize efficiency without adding unnecessary weight. Performance & Engineering Engineered for smooth power transfer, the BB-RS501 features a sealed bearing system that protects against dirt, moisture, and debris-extending service life and maintaining consistent performance. Designed specifically for use with Hollowtech II 24mm crank spindles, it ensures perfect alignment and minimal flex for efficient pedaling dynamics. Components & Technology This bottom bracket is compatible with Italian threaded frame shells (36mm ID) and has a standard shell width of 70mm. Its precision-machined components and advanced seal design set a new standard for bottom bracket longevity, making it a dependable choice for both competitive racing and casual riding. Style & Use Case With its sleek silver finish and minimalist design, the BB-RS501 complements a variety of road bike aesthetics. Whether you're upgrading your existing setup or building a new high-performance road bike, this bottom bracket ensures optimal power transfer and a smooth ride, making it suitable for serious cyclists demanding top-tier technology. Innovative Features The enhanced seal construction and anodized aluminum cups make the BB-RS501 stand out in the market, providing superior prote

  • BB-RS501 Hollowtech II Italian Bottom Bracket features durable anodized aluminum cups that combine high strength with lightweight performance, ideal for serious cyclists.
  • Engineered with enhanced seal construction, this bottom bracket ensures long-lasting performance and resistance to the elements, reducing maintenance and downtime on your bike.
  • Designed specifically for Italian threaded frames, the BB-RS501 offers a perfect fit with 24mm Hollowtech II crank spindles, delivering optimal power transfer and pedal efficiency.
  • Constructed for performance, it incorporates 's advanced technology to provide smooth rotational movement, improving overall cycling experience, whether on road or mountain biking adventures.
  • With a sleek silver finish and precise specifications, this bottom bracket is the reliable choice for upgrading your bike's drivetrain, enhancing durability and ensuring seamless operation for years of riding comfort.
UPC 192790640624
Model EBBRS501I
Brand Name SHIMANO
Unit Count 1.0 Count
Part Number Shimano-BTBK0904
Manufacturer Shimano
Material Type Steel Bearings
Bearing Number BB-RS501
Item Type Name Bottom Bracket
Item Dimensions 7 x 5 x 2 inches
Included Components Bottom Brackets
Warranty Description Limited Warranty

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4.2 out of 5
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40 ratings | 16 reviews
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