Hello boys I hear a buzzing about 40 or 50 kms / h, I think is the belt, that you think.

Thanks

Mine makes a good whine once I get above about 20-25mph. I think its the gears either in the trans or in the rear diff. I have watched many videos and it seems they all have that whine. I don't have a buzz noise though, well other than my tires now but that's the lugs on the big bastards.

Need more information on the noise and when it does it.  All of them have a wine to them when you get up to speed.  Its the nature of a CVT.  I would call a buzz a different noise that is not normal.  But what I call a wine you may call a buzz so who knows

Redrider
I think that too can be, thank you all

Tested some additive antifriction for this rear diferencial...