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Stock Item


Designed specifically for e-Bikes and longer wear, Praxis steel e-Rings are cold forged from 4130 high-grade steel with a nice black oxide finish. Licensed and developed in conjunction with Mountain Racing Products, the Wave™ pattern tooth profile applies alternating lateral force to each chain link to actively retain the chain to the ring – going beyond narrow/wide implementations that rely solely on friction, while allowing room for mud, debris, and grit to escape. The Wave™ design also wears more slowly than competing designs by spreading the load over larger surface areas. 

  • Steel e-Ring for e-Bikes 104 BCD | 32 - 36T 
  • These e-rings are "female" threaded. Male M8 CR bolt threads into ring for motor clearance. 
  • Wave™ Tech tooth profile   
  • 10/11/12sp Shimano/KMC/SRAM 
  • Cold forged 4130 grade steel 
  • Black Oxide coating 
  • Rear Der - Must use a "clutch" type rear derailleur. Example Shimano Shadow or SRAM Type 2 
  • In very rough terrain, or just for pure security, use of an upper guide is still recommended
  • Instructions and technical documents here