Front sprockets with cush drive
I went to change my front sprocket from a 15T to a 16T. I noticed as I took the cover off that the stock (OEM) sprocket appears to have a rubber piece between the countershaft hole and the chain teeth - this appears to be the cush drive. The aftermarket sprocket of course doesn't have this rubber.
1) Am I seeing this right? I've seen a similar setup on older Honda VFRs
2) If this is the cush drive, I don't feel all that comfy changing to a sprocket without it since most of the bikes life is on road. Now the cush drive may not be necessary, but it WILL help tone down vibrations which could shorten tranny life (which is likely why Suzuki engineered the original sprocket this way). I happened to ask a dealer and he indicated the rear has a cush drive system as well - I didn't check, but could be possible. Anyone know?
I'm holding off changing sprockets as in my opinion, if the only cush drive is on the front sprocket, lowering the RPMs with a larger sprocket is not necessarily a good tradeoff from removing this vibration eater.
2008 DL650 (yellow), 2010 F800GS, 2006 DRZ250 (aka "Kitten-Kitten", my lady's dirtride), 1976 H1