EK/PBR 520M3 12/49 Chain Kit - Standard Sprocket by EK CHAIN: a set designed for motocross use, which includes chain, sprocket, and rear sprocket in a ready-to-install assembly. Gold finish for easy visual inspection and apparent corrosion resistance, suitable for off-road conditions and trail outings.
- Pitch: 520 (suitable for common motocross transmissions)
- Reduction: 12-tooth sprocket / 49-tooth rear sprocket (standard steel rear sprocket)
- Number of Links: 112
- Color: Gold / Gold
- Weight: 1.36 kg for 100 links (reference)
- Relative Lifespan: index 450 for 100 links (comparative value)
The M3 construction from EK combines a design aimed at reducing friction with high tensile strength and abrasion resistance, important criteria for lasting on muddy and rocky tracks. The steel rear sprocket provides mechanical stability suited for frequent disassemblies and the harsh conditions of motocross.
Installation and adjustment: ideal for teams and riders who regularly change sprockets to adapt their gear ratios. Check compatibility with your model (e.g., Honda CR 125 R JE01 1997) and follow manufacturer recommendations for tension and lubrication to ensure reliable operation.
