1/8 ~ 144 BCD ~ CHAINRING
The big brother ZEN, an ultra-round super rigid ring. Made out of stiff 7075 T6 aluminum, stamped, machined and then polished smooth.
The Zen ring also features the SSGN super smooth tooth profile, which means the tooth valleys are rounder and the side tooth profile is smoother than the standard Sugino 75 SSG rings.
This slightly more expensive process helps reduces chain noise and also improves ring and chain engagement and wear.
Silver is NJS; Black is NOT.