by nug » Tue Feb 25, 2014 12:10 am
I have had CCM 644 & DR 650SE & the sprockets have been the same fitment on those as I have swapped between them. I pretty sure the DR 650 hasn't changed from 1996 to this day so the Breakwind would be just the same.
What sort of riding are you doing on the R30 that you would need to change the ratio so much ? A 14T front is as far as I would go & I tried many different ratios when I had the trolley wheels on my 644.