Supersprox BMW 525x45 RFE7X45BLK rear sprocket

Upgrade your BMW with the SUPERSPROX Steel Rear Sprocket RFE7X45BLK. Crafted from high-grade steel, this 525 pitch, 45-tooth sprocket offers exceptional durability and resistance to wear. Engineered for seamless integration, it optimizes power delivery, enhances acceleration, and extends chain life for a smoother, more exhilarating ride. A direct OEM replacement for hassle-free installation