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9R clutching

^^^ what rpm are you seeing at that elevation, and how is the back shift with them weights
I’m seeing around 8300-8350. The snow has changed so much on the rides before changing to after but it feels decent. It may be a little slower to react though. I’ve got a clutch kit a plan on putting in after breakin but thought I would solve the over rev. If I had 76s I would run them.
 
I’ve had some time on the snow with my 2023 9R with updated clutch and the Ibexx clutch kit. First trip this season it was still revving 8550rpm at 6500’. I added 2 grams of weight before our 2nd trip. 2nd trip was to Revelstoke/Sicamous and it was revving 8350rpm at 6800’ and track speed was 41mph.
 
Does the 9R gain rpm when it comes out of break-in? My Boost didn't gain rpm, but my 800 gained like 250 once out of break-in. My should be done with break-in on the next ride and I'm revving 8600rpm @ 6500ft. Trying to decide between just swapping in a 120/320 primary spring, buying Polaris 74g or 76g weights, or going with the Bikeman stage 1 kit...
Will 8600 rpm hurt the motor for short blips? I am running 68g right now via a mistake by a very good sled shop. They sent out 70’s asap but just curious if I make the change. I ride from 8000 to 12000 feet above sea level. The sled is very snappy but don’t want to hurt her. When I get above 10k I see 8450 to 8550 rpm’s.
I am adding the carbon sled fix it kit and titanium clutch cover bolts which is not loosing a ton of inertia weight to the clutch but it definitely will be lighter.
I am still getting back in the game so not even sure how the primary spring changes things?
 
I’ve had some time on the snow with my 2023 9R with updated clutch and the Ibexx clutch kit. First trip this season it was still revving 8550rpm at 6500’. I added 2 grams of weight before our 2nd trip. 2nd trip was to Revelstoke/Sicamous and it was revving 8350rpm at 6800’ and track speed was 41mph.
Is your updated clutch the ‘25? I am very close to purchasing the Ibexx clutch kit but the Carl’s cycle clutch kit has me second guessing…
 
Will 8600 rpm hurt the motor for short blips? I am running 68g right now via a mistake by a very good sled shop. They sent out 70’s asap but just curious if I make the change. I ride from 8000 to 12000 feet above sea level. The sled is very snappy but don’t want to hurt her. When I get above 10k I see 8450 to 8550 rpm’s.
I am adding the carbon sled fix it kit and titanium clutch cover bolts which is not loosing a ton of inertia weight to the clutch but it definitely will be lighter.
I am still getting back in the game so not even sure how the primary spring changes things?

I don’t think 8600 in short blips would hurt the motor. For the kit I’m running Ibexx actually recommends to target 8450rpm. I think the Polaris manual says 8250 +/- 150 rpm. I was seeing 8700 with the original clutching Polaris clutching. You could definitely change things and play around. You can always go back to baseline. The primary spring plays a role in the engagement rpm and the full shift out rpm. The springs usually have a number like 140/330 or whatever. I think these are measured spring compression forces. The lower number affects engagement force and the higher number full shift rpm…
 
Is your updated clutch the ‘25? I am very close to purchasing the Ibexx clutch kit but the Carl’s cycle clutch kit has me second guessing…

I’m super satisfied with the Ibexx kit in the 9R. I didn’t care for it in my Boost, but it turns out my kit may have been affected by the helix recall. I’m pretty happy with 8350rpm and 40+mph track speed. I’m sure there’s people that would say the light weights Ibexx use don’t alllow for sufficient belt squeeze, but as best as I can tell it’s very crisp/snappy and hooks up pretty hard, even with the 2.75 track. Ibexx uses 59g weights to which I have added 4.5G for 63.5G total.

I’m heading to the mountains in the morning so hopefully can get some good hours on this setup!
 
I don’t think 8600 in short blips would hurt the motor. For the kit I’m running Ibexx actually recommends to target 8450rpm. I think the Polaris manual says 8250 +/- 150 rpm. I was seeing 8700 with the original clutching Polaris clutching. You could definitely change things and play around. You can always go back to baseline. The primary spring plays a role in the engagement rpm and the full shift out rpm. The springs usually have a number like 140/330 or whatever. I think these are measured spring compression forces. The lower number affects engagement force and the higher number full shift rpm…
The 68’s make her pretty rowdy on the bottom end! Lol I like it!
As you know I get so excited about buying parts to make everything work perfectly.. Hence my FX350.
Why did you choose Ibexx? The one thing about the Carl’s cycle clutch kit is it has tri roller set up. To be gosh darn honest I don’t know how that improves things but it’s one of the few kits that does it. Seems like a legit upgrade.
Thank you very much for the editorial on what the primary spring does. Some days you have to suck up your pride and figure out things and ask for help. Lol 🤙🏻👊🏻
 

 
The 68’s make her pretty rowdy on the bottom end! Lol I like it!
As you know I get so excited about buying parts to make everything work perfectly.. Hence my FX350.
Why did you choose Ibexx? The one thing about the Carl’s cycle clutch kit is it has tri roller set up. To be gosh darn honest I don’t know how that improves things but it’s one of the few kits that does it. Seems like a legit upgrade.
Thank you very much for the editorial on what the primary spring does. Some days you have to suck up your pride and figure out things and ask for help. Lol 🤙🏻👊🏻

I chose Ibexx because the Canadian Ibexx rep does testing for Ibexx right in interior BC where I predominantly ride, and hence it’s what a lot of the local guys run. I like the idea of knowing the kit works where I ride.

Ha ha yes your FX350 thread was always one I looked forward to. I’m happy to help 👍
 


When I was in Revelstoke a couple weeks ago I ran into a guy and his wife from Idaho. He was running Carl’s Cycle in his Boost. He said he was very happy with the kit. He had never ridden a 9R so I let him ride mine. He came back with a pretty big grin ha ha.
 
I am currently running a Bikeman Stage 2 SNYPR kit. It is what the previous owner had installed for his 7 days of riding the sled. So far I like the bottom end response & backshift. Definitely over revving for 8K elevation. I did not get any additional weights for it so I may just pull the kit & switch to a Burandt clutch kit. I am a fan of the Boondocker weights he uses with his kits.
 
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I am currently running a Bikeman Stage 2 SNYPR kit. It is what the previous owner had installed for his 7 days of riding the sled. So far I like the bottom end response & backshift. Definitely over revving for 8K elevation. I did not get any additional weights for it so I may just pull the kit & switch to a Burandt clutch kit. I am a fan of the Boondocker weights he uses with his kits.
What Rpm’s are you seeing at 8k asl?
 
8,700-8,800. Previous owner said it was clutched for McCall. I usually ride from 8k-11K.
I have definitely seen those rpm’s at 8000 ft will my clutching heading up the trail. McCall is 5k ish at parking lot?
I am so sold on getting a clutch kit but can’t decide like mentioned above between Ibeex and Carl’s cycle.
 
Not the complete carbon sleds fix it kit for the P-22 but it is what he recommended/had in stock with a 2025 clutch. Push industries titanium clutch cover bolts. I also purchased the sheave tool from Carbon sleds. Some 70 weights as well, not sure they will go in.
Still on the fence which clutch kit… Carls or Ibexxx
 

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