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Author Message   Classax Posted on Monday, March 30, 2015 - 12:05 pm:        This may be an idiotic question but looking at the service videos I notice the idler sprocket has little teeth on it. Mine has a raised ridge but no Teeth per say. I don't see where they might have been worn down either. Any of you guys with RX or SX able to shed any light on the subject, I'm certain the RS one has teeth.   Rodrob Posted on Tuesday, March 31, 2015 - 01:18 pm:        The RS chain idler does not have teeth in the classic sense. They are more like lobes, being rounded off and shallow.   Snacktoast Posted on Tuesday, March 31, 2015 - 01:56 pm:        The RX idler is smooth - no "teeth".   Classax Posted on Tuesday, March 31, 2015 - 02:42 pm:        Thanks to both of you. I was really expecting to see as Rodrob described something with teeth/lobes and thought I had a SERIOUS wear problem since it is perfectly smooth. LOL   Ratbuell Posted on Wednesday, April 01, 2015 - 08:28 pm:        just a wild-ass-guess here, but they probably did that to keep proper tension without causing any "back-side" chain wear...no sense wearing the chain from both sides!   Rodrob Posted on Thursday, April 02, 2015 - 01:08 am:        I think they removed the "teeth" to reduce the off gas whine of the RS.   Buelliedan Posted on Thursday, April 02, 2015 - 11:19 am:        My RS whine is seriously loud!   Rodrob Posted on Thursday, April 02, 2015 - 12:40 pm:        As are they all.   Ljm Posted on Thursday, April 02, 2015 - 12:58 pm:        For my part, I don't mind the whine. Between the race system under power, and the whine on decel, it is entirely unique. I have people at lights ask me about it. Conversation piece I guess. I miss it on the SX.   Zac4mac Posted on Sunday, April 05, 2015 - 12:03 am:        Once I realized what "the noise" was I relaxed. Kinda like the sound of a dry Ducati clutch. If it's not a lot of trouble, I'll radius the "teeth". That should make a difference as the edges are all pretty sharp now. Ya, mine is really noisy Z   Rodrob Posted on Sunday, April 05, 2015 - 12:00 pm:        If it's not a lot of trouble, I'll radius the "teeth". It'll do that for you.

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