The RK GB520GXW ChainXW-Ring Rated up to 1000cc Applications: Dirt
and Street. GB520GXW is RK's premium quality 520 XW-Ring chain. XW-Ring chains
are the best high-speed, extreme heat performance chains available today. So, If
you've modified your ride into an extreme high-speed machine, you need the
strength and performance of GB520GXW. With a maximum tensile strength rated at
8800 foot pounds and suitable up to 1000cc streetbikes and 750cc off-road bikes,
GB520GXW can handle anything you dish out!