Currently the Hawk 250 RK Chain 428SO 130 Links is out of stock on amazon as of Jan 24th, 2017. You can check this link to see if it’s back in stock https://hawk250.com/shop/rk-racing-chain-428so-130-steel-links-heavy-duty-for-hawk-250/
I have found the same item on eBay if you would like to purchase it right away for your hawk 250 and not wait for amazon to get it back in stock. Click the link below if you would like to use my eBay affiliate link. It will open in a new window and take you to eBay. If you have any questions, please feel free to email me or message me on social media.