132 link, #25 chain for the Razor MX500, MX650, SX500, & RSF650 electric dirt bikes (or Dirt Rocket, as Razor calls them). Also fits the Minimoto Motocross XRF500. In addition, this chain fits a number of other brands and models.
This chain is precut and consists of 132 links (66 inner links + 66 outer links). Also sometimes referred to as a 132 pin chain.