



The EK/PBR 415SR 13/43-124 chain kit is a complete and polished solution for small sports and urban touring motorcycles. Designed by EK CHAIN, this kit includes a standard steel sprocket and a 415 pitch chain in gold/gold finish, ready to replace your original transmission. The SR series focuses on a construction that preserves the flexibility of the chain even after prolonged use: the plates have undergone specialized heat treatment to enhance their durability and strength.
Ideal for urban use and daily commutes, this kit requires regular maintenance (lubrication and tension checking), especially due to the absence of O-rings. Compatible with lightweight models such as APRILIA RS 50 (1993–1994), it offers a reliable fit to replace a worn transmission and restore a crisp and secure drive.