DS 650 Rear Sprocket Bolt Pattern? is it the same as any other quad?? Any Rear Sprokets that are interchangable?? I called a few sproket companies they wont tell me.

 

Front are easy 520 pitch, counters are off the BMW 650, I like the DID x Ring Chains, cant find any crosses to the DS650 Rear Sprokets, our sprockets have chaged 2 times, (00 to 03) <- Steel Hub (04 to 06) <-Alum Hub
Can get custom sprockets made for 50 to 60, how are the Woods Sprokets holding up?? what is the Tri Molly Sprocket running??