Praxis eRing Steel 4 Bolt Chainring - Four Bolt - 104 BCD - Standard Crank Chainline - Round - 34T - 10-12 Speed - Steel NoAusPost Optional extras: (See below for

Optional extras: (See below for links)

it won't harm rubber o-rings or metal surfaces either

000" round

Chris King and other cassette lockrings

Praxis eRing Steel 4 Bolt Chainring - Four Bolt - 104 BCD - Standard Crank Chainline - Round - 34T - 10-12 Speed - Steel NoAusPost Optional extras: (See below forDesigned specifically for e Bikes and longer wear, Praxis's 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