Needed a new chain and decided to go with new sprockets while I was at it. Didn't even realize MotoMummy was a vendor here. Just did a google search and found the website very helpful and pricing + shipping compared really well. Ordered the Vortex lightened steel sprockets (-1, +2) and new chain (520 conversion). Shipped super fast and received super fast. Even though I didn't communicate with these guys directly their website has all the info you need and then some! Would definitely do business with again! Wish I had ordered some decals from them!