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Renthal 189U-420 Rear Sprocket – 49 Tooth

  • Designed for motorcycles using a 420 pitch chain
  • 49-tooth configuration for optimized gearing
  • CNC-machined from 7075 T6 aluminum alloy for strength and reduced weight
  • Hard anodized surface for increased wear resistance and durability
  • Approximately 66% lighter than comparable steel sprockets
  • Precision-engineered for accurate fitment and load distribution
  • Suitable for street and road racing applications
  • Commonly used by professional teams in competitive racing environments

Fitment and Compatibility

  • Compatible with motorcycles requiring a 420 pitch chain
  • Ideal for lightweight or smaller displacement motorcycles
  • Check specific bike model and chain requirements for proper fitment

Construction and Performance

  • Manufactured with tight tolerances to ensure concentricity and reliability
  • Hard anodized finish enhances lifespan under high-performance conditions
  • Reduces unsprung weight, improving handling and acceleration performance