
EK/PBR 420SR 13/48 Chain Kit - Standard Sprocket: a transmission set designed for urban use and small displacements. The SR series maintains the flexibility of the chain even after prolonged use; the plates undergo a specialized heat treatment to enhance their durability and strength. This kit provides a robust and understated solution to restore the transmission of your moped or scooter.
Compatible with many 50 cc mopeds, including the RIEJU SPIKE 50 (2003-2004) and RIEJU RR 50 (2004). Ideal for urban use: complete replacement of sprocket/sprocket/chain to restore clean transmission efficiency and neutral behavior during acceleration.
Practical advice: check the type of mounting and the necessary length before installation, monitor and adjust the tension after installation, and regularly lubricate the chain to maximize longevity. Manufacturer reference: Not provided.