Sram Force D1 Chain - 12 Speed Beyond an incremental improvement. The Flattop™ technology of the SRAM Force® chain creates a lighter, quieter, stronger chain.   Features
  • Flattop™ technology allows for a narrower chain with quieter operation and increased strength and durability
  • Hard Chrome™ plated inner and outer plates for faster and more precise shifts
  • Supplied with new Flattop™ Powerlock™