Rene Herse x Kaisei Curved Chainstays


Stiff chainstays designed for high-performance frames, curved to match the Rene Herse bottom bracket shell. The curve incorporates a flat indentation for extra tire clearance.

Choose 0.7, 0.8, or 1.0 mm wall thickness.

Pro Tip: The chainstays are not heat-treated, so they can be curved further or indented for chainring clearance.

  • CrMo steel
  • 22.2 mm round ends, tapering to 12.0 mm
  • 410 mm length
  • Weight (pair): 274 g (0.7 mm wall); 315 g (0.8 mm wall); 349 g (1.0 mm wall)
  • Made in Japan