Loud gear noise between 45 and 50 mph

[K80Shooter]

There should be a gap between the belt and the rear pulley flange the thickness of a credit card.

same on mine 2020 F3S from the beginning, a noise like a subway. Belt-tension definitly too tight by factory and NO space between belt and rear-pulley inside. Pressure on the gearbox-pulley too high. I lowered the tension and lined the belt on both pulleys. Result: quiet now and it goes more softly by stop-and-go

That's what I was thinking. Mine is against the flange, I have not looked at the front pully yet but will now. I have to carry mine back to get another piece replaced when it comes in so I'll also have them to check that. Another thing that I noticed is that the passenger seat is not locked into place, never was and will not lock so that's another item to be looked into.

 

[RICZ]

As far as I know, if you have the belt tracking correctly on the rear pulley, it centers on the front pulley OK. It's worked for me.

 

[stebrock]

i have same problem on my 2020 RT-L. Mentioned it dealer service manager thinking it was the front tires. He said it is the drive belt and Can-Am knows about it. Can-Am has received many complaints and is looking into it.

If you go to the RT forum you'll find a long discussion about "the noise between 45-50 mph". Supposedly it's coming from the forward belt pully. There's actually a part number posted in the discussion. #219 800 509.