EK CHAIN PBR 420SR 11/48 - Standard Rear Sprocket Chain kitRef : EKC04512A / 3070256

EK/PBR 420SR Chain Kit 11/48 - Standard Sprocket
Designed for urban use, this EK CHAIN kit combines an 11-tooth sprocket and a 48-tooth rear sprocket for robust transmission and easy replacement. The SR series features a specific heat treatment on the plates, which helps maintain the chain's flexibility even after prolonged use, while increasing wear resistance.

• Brand: EK CHAIN
• Pitch: 420
• Number of Links: 124
• Color: Steel / Steel
• Rear Sprocket Material: Steel (standard sprocket)
• Weight: 0.75 kg / 100 links
• Relative Lifespan (for 100 links): 200 (manufacturer's index)
• Manufacturer Reference: Not provided

Ideal for mopeds and small 50cc bikes in urban use — including RIEJU SPIKE 50 (2003-2004) and RIEJU RR 50 (2004). This chain kit offers a simple and reliable maintenance solution: replace the chain, sprocket, and rear sprocket at the same time to preserve alignment and prolong the lifespan of the transmission. Always check compatibility, tension, and condition of the drivetrain before installation.