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Do the 2021 RT Ltd's have a belt idler? If not, which one fits? Best?
- Thread starter Dakota Jim
- Start date
Jim, I am picking my 2021 RTL up today, it has one from the factory. BTW I grew up in Robert's County (Peever SD).
BryanSD
New member
I was going to share a similar image but you beat me too it. My understanding is all 2021 RTL built in January 2021 or later have the belt tensioner/idler arm. I haven't confirmed whether my RTL has the "white quiet pulley" in front. Smoaks goes over this about 2 minutes into the video.
Doug44
New member
The craziest thing about this thread (does my 2020-2021 have a factory idler pulley is WHY can’t someone get an reply from Can Am �� Of all the different brands of motorcycles I have owned over the past 60 years it seems Can Am is unapproachable for not only this question but any questions and or support. ��
Out the door out of mind in many cases, some exceptions I suppose. Fortunately this forum has helped educate me so that I can educate the dealer and techs. Dealer seemed to know nothing about the updated "white" front pulley, mirror fix and idler on my early '21 until I took the info from this forum to them. All of this except the Lamonster idler was done under warranty, only after I presented the information. Clearly a disconnect of information between dealer, BRP and customer. But they aren't in the education business.
Dakota Jim
New member
Fun riding around the hills above Peever. Very pretty country. GO SOUTH DAKOTA
Ryan12
Member
when I bought my new 2020 RTL I did notice the vibration around 75 MPH. So I installed Lamonsters part and when installing it I did notice the belt tension was way higher than on my 2012 I had. Sorry I didn't get the cricket to measure it. I installed the part anyways and haven't noticed any vibration yet.
If you didn't exceed 70 mph you didn't reach the speed range where it "normally" occurs. For most it's around 73-76 mph.
After doing much searching, I find that the idler pulley was not installed on the 2020 RT Spyders. I guess that there was enough complaint about the very common vibration problem, that BRP saw that one was needed. So, on the 2021 models, they installed one. Their parts catalog shows one listed for the 2021 models. It is part number 705503291 and costs $48.99. https://can-am-shop.brp.com/on-road/us/en/shop/sales/parts/ It appears to have the smaller pulley on it which other posts indicate that it may fail too soon. The lamonster garage version has a larger, improved pulley which would seem to be a better part to have.
AE2WM
New member
Idler/Damper Stock for 2021 Spyder RT Limited
I just picked up my new 2021 Spyder RT Limited on July 30,2021. It came with the belt vibration damper/tensioner installed. I don't see any reason to suspect that the dealer installed it; must be the factory's doing. Nice to see that BRP spent the time and money to improve their product.
I just picked up my new 2021 Spyder RT Limited on July 30,2021. It came with the belt vibration damper/tensioner installed. I don't see any reason to suspect that the dealer installed it; must be the factory's doing. Nice to see that BRP spent the time and money to improve their product.
Peteoz
Well-known member
My 2021 RT-L came with a belt idler, and the 20/21 workshop manual shows one in situ whenever they show a diagram of the left side behind the cover. Makes you wonder if one came with the ‘20 models, pre dealer assembly, but some dealers couldn’t be bothered putting it on, along with neglecting to bolt on the ACS sensor rod, checking tyre pressures etc.
Pete
Pete
K80Shooter
New member
The 1st edition idlers proved to not last very long so a decision was made to leave them off. BRP must have went with a better bearing on the newer ones.
Peteoz
Well-known member
Drwerner
New member
On the 21's, it seems to be hit and miss. I picked mine up recently and asked the dealer if there was one on it. He said there wasnt. So I ordered one from Spyder Extras. When I took the bike apart to mount, I saw it had a belt tensioner. *%&*&^^!! Oh Well, I uninstalled it and installed the Spyder Extras one since I had it apart. So, I do have a late 21 factory tensioner for sale
.It's an easy install.
Tourmaster
New member
Just purchased a 2021 RT Limited and have only put about 1,500 Kms on it so far. I think I'm experiencing the harmonic vibration you guys are referring to. For example, at 115 KPH (70 MPH), I will get a shudder/vibration for about 15 seconds, followed by about 10 seconds of perfectly smooth riding, and then this cycle repeats. The duration and intensity of these cycles change a bit depending on speed, but is experienced all the way from 105 to 120 KPH ( or about 60 to 75 MPH). Am I correct in assuming that this is the RT's drive belts annoying characteristic?
So, from all my reading here, I thought this should be a simple fix by installing a belt top tensioner. But, had a llook underneath and my unit already has the factory tensioner. So ... now what?
By the way, I just had the RT over to the dealer for a minor warranty issue, so had them recheck the belt tension and alignment. They stated that the belt was still on spec.
Any suggestions would be much appreciated.
So, from all my reading here, I thought this should be a simple fix by installing a belt top tensioner. But, had a llook underneath and my unit already has the factory tensioner. So ... now what?
By the way, I just had the RT over to the dealer for a minor warranty issue, so had them recheck the belt tension and alignment. They stated that the belt was still on spec.
Any suggestions would be much appreciated.
BryanSD
New member
My wife and I have a 2017 RTL (no idler pulley) and a 2021 RTL (with factory installed idler pulley). I barely notice any belt harmonics on our 2021 but maybe that because it's extremely noticeable on the 2017. BRP nor most after-market manufactures don't advertise that the idler pulley will remove all belt harmonics only that it reduces pulley reduces vibration in the belt. I've never really heard anyone mention the harmonics go in cycle and for my RTL the belt causes the same sound consistently when I'm at a consistent speed. I'll be curious as others comment if they experience this cycling through the harmonics as you describe it. I will say I did have an annoying vibration/sound when I put new tires on my 2017 Spyder last Fall (Kenda Kanine KR20) but after putting 1000 to 2000 miles the tread that particular sound went away. If your dealer is saying everything is fine it may just need to be something you get used to.
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