Front sprockets with cush drive - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 7 Old 04-23-2008, 11:29 AM Thread Starter
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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
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post #2 of 7 Old 04-23-2008, 11:33 AM
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I think it's just rubber coated to isolate some of the vibration.
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post #3 of 7 Old 04-23-2008, 12:12 PM
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It's primarily a noise reducer, and a very minor one. The cush drive is in the connection between the rear sprocket carrier and the rear wheel. I doubt that it's possible to tell the difference in either sound or feel caused by running a front sprocket with or without the rubber.

Rich Desmond
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post #4 of 7 Old 04-23-2008, 12:30 PM
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I have the all steel 16t on my Wee and it works great (16K miles). I noticed no difference (other than RPM) from the stock sprocket.

Roger ('14 Tenere ES, COG 5903)
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post #5 of 7 Old 04-23-2008, 03:21 PM
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rubber coated

If you want the rubber on a one tooth larger front sprocket, get the one that fits the GSXR 600. Dealers usually have them in stock and it slips right on.
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post #6 of 7 Old 04-23-2008, 04:33 PM
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I definitely noticed a difference with the aftermarket front sprocket, it was certainly noisier. However, the initial noise seems to have gone away (maybe its broken in)....or maybe I am just used to it. My understanding is that this is only a noise/smoothness issue and should not affect the wear of the drivetrain.

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post #7 of 7 Old 04-23-2008, 09:44 PM
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Quote:
Originally Posted by Koinz View Post
I think it's just rubber coated to isolate some of the vibration.
Exactly, it's a rubber ring that is glued to the sprocket to deaden noise.

"Build a man a fire and he'll be warm for the night. Set a man on fire and he'll be warm for the rest of his life." - Confuseus
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