EK CHAIN PBR 420SR 12/62 - Standard Rear Sprocket Chain kitRef : EKC03131A / 3067769

Complete kit designed for small urban motorcycles: EK 420SR chain (non O-ring), front sprocket made of PBR steel, and rear sprocket made of steel. Designed to fully replace the secondary transmission, this kit combines lightness and robustness for road and urban use, with good tolerance for light off-road applications.

• Chain Type: EK 420SR (non O-ring)
• Pitch: 420
• Configuration: 12 tooth sprocket / 62 tooth sprocket (standard sprocket)
• Number of Links: 140
• Roller Width: 6.35 mm
• Materials: high-strength steel chain, PBR steel sprocket, steel sprocket
• Tensile Strength: 6,500 N (suitable for up to ~25 HP)
• Weight: 0.75 kg for 100 links
• Durability Index: relative lifespan 200 (for 100 links)

• Ready-to-install kit: everything needed to replace the sprocket, rear sprocket, and chain.
• Steel construction for controlled wear and reliable power transmission.
• Chain treated with a coating to limit the impact of water and dirt.

Practical tip: check compatibility with your machine before installation and check the tension after the first 100 km. Compatible notably with RIEJU MRT 50 (2009–2013) and other 50 cc models equipped with 420.