EK CHAIN PBR 420SR 12/53 - Standard Rear Sprocket Chain kitAPRILIA 50 RS 50 REPLICA - 2006Ref : EKC04736A / 3070786

The EK/PBR 420SR 12/53 chain kit combines robustness and compactness for urban small-displacement motorcycles. Designed around the SR series, it features a specific heat treatment of the plates that preserves the flexibility of the chain even after prolonged use, without compromising durability.

• Brand: EK CHAIN
• Type: 420SR chain kit (12-tooth sprocket / 53-tooth crown - standard steel crown)
• Pitch: 420
• Number of links: 122
• Color: Steel / Steel
• Weight: 0.75 kg for 100 links
• Relative lifespan: index 200 (for 100 links)

Ideal for urban use and daily commutes, this kit offers reliable transmission and a sprocket/crown ratio suitable for 50 cc engines and small displacements. The steel crown ensures good wear resistance, while the SR design limits chain stiffening over time. To maintain longevity, regular adjustment and lubrication, monitoring of link wear, and replacement of the crown if necessary are recommended.

Manufacturer reference: Not provided

Common applications include: APRILIA RS 50 REPLICA (2006 - 50 cc).