YBN MK918N Half-Link Chain - 1/2x3/32 - Chrome 4-1/4 5" / 650b (ISO 584mm)Wall:

5" / 650b (ISO 584mm)Wall: SingleDrilling: 36HValve: SVInternal Rim Width: 19mmExternal Rim Width: 23

5" taper headtube

The Comfort 2 comes equipped with Shimano 21 speed Tourney Revoshift for a wider gear range and lightweight alloy v brakes for confident and controlled stopping

Pedals: Nylon body | Chromoly axles | Platform

YBN MK918N Half-Link Chain - 1/2x3/32 - Chrome 4-1/4 5" / 650b (ISO 584mm)Wall:Very sturdy, the YBN MK918 chain is a half link model that allows for more precise chain tension adjustment by removing half links rather than links on a normal link chain. It is perfect for single speed transmissions with high tension constraints such as BMX or Fixie. Its tensile strength is improved by reinforced, thicker and stronger plates. FEATURES : Narrow chain Tensile strength: 1400kgf Pitch: 1 2 x 3 32 Links: 96 Rivet length: NC Weight: 460g