Enhance your bike’s performance and durability with this high-quality Bottom Bracket, designed specifically to fit SHIMANO Series frames with a bottom bracket shell width of approximately 86-92mm (3.4-3.6 inches). Crafted from premium aluminum alloy, this bottom bracket combines strength and lightweight properties with a sleek, modern appearance and excellent structural design. Key Features: · **Waterproof and Corrosion-Resistant Design:** Equipped with a sealed silicone waterproof ring that effectively prevents water, sand, and corrosion from entering the five-way, ensuring long-lasting performance even in harsh conditions. · **Durable Ball Bearings:** High-quality steel ball bearings enhance abrasion resistance and reduce the risk of rust, providing smooth and reliable rotation for your bike’s crankset. · **Versatile Fitment:** Compatible with SHIMANO Series bottom brackets and frames with a shell width of 86-92mm (3.4-3.6 inches), making it a perfect upgrade or replacement part for a wide range of bicycles. · **Conversion Sleeve Included:** Comes with a free conversion sleeve that allows adjustment from an inner diameter of approximately 24mm (0.9 inches) to 22mm (0.86 inches), offering greater compatibility and flexibility. · **Robust Aluminum Alloy Construction:** Made from high-strength aluminum alloy, this bottom bracket offers excellent structural integrity and durability while maintaining a lightweight profile. · **Innovative Structural Design:** The novel appearance and precise engineering ensure an easy installation process and reliable performance under various riding conditions. Specifications: · Material: Aluminum Alloy · Bearing: Steel Ball Bearing · Inner Diameter: Approx. 24mm (0.9 in) or 22 x 24mm (0.86 x 0.9 in) with conversion sleeve · Applicable Frame Bottom Bracket Width: Approx. 86-92mm (3.4-3.6 in) · Fitment: Compatible with SHIMANO Series Package Includes: · 1 x Bottom Bracket (with free conversion sleeve) This bottom bracket is an essential bicycle accessory that delivers waterproof protection, enhanced durability, and smooth operation, making it ideal for cyclists seeking reliable performance and long-lasting quality.