PBR Ultra-Light Aluminium Hard Anodized 4639 - 525 SprocketRef : PBR01141A / 1075373002

PBR Ultra-Light Hard Anodized Aluminum Sprocket 4639 - 525: a monoblock sprocket designed for demanding riders who want to lighten their transmission without sacrificing durability. Made from high-quality aluminum and treated with hard anodization, it offers good resistance to abrasion and corrosion while showcasing an elegant stainless steel look.

• Material: monoblock aluminum, hard anodized finish
• Number of teeth: 39
• Chain pitch: 525
• Color: stainless steel
• Ultra-Light design to minimize unsprung mass and rolling inertia
• Controlled manufacturing process for precise tooth geometry

Drawing from PBR's experience in competition, this sprocket is aimed at roadsters and machines where precision and reliability of the transmission are crucial. It replaces the original sprocket (check the pitch and number of teeth) and is suitable for riders looking for a high-performance and durable part for occasional road and track use.

Manufacturer reference: 4639 39 LD

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