Description Veloci ROCKER V2.1 1x BCD110 Chainring is a high quality narrow-wide option for all your 1x dream builds! The ROCKER 1X NARROW WIDE chainring features a unique tooth profile design that enhances engagement while effectively reducing wear, significantly extending its lifespan. Crafted from an AL7075 aluminum plate and fully CNC-machined, it is meticulously engineered to eliminate excess material. Ensuring a lightweight build without compromising power transfer while you pedal. Veloci ROCKER V2.1 1x BCD110 Chainring Specs Material: Machined from 7075-T6 Aluminium Plate Compatible Drivetrains: 1x 12 Speed, 1x 11 Speed & 1x 10 Speed BCD: 110 mm BCD Teeth: 38T & 40T Weight: 81 g Finish: Wet Black or Polished Silver Grey (a dark silver similar to stainless steel)