CMX belt drive on new pro
- Thread starter snopro34
- Start date
Although I have zero issues with mine, IF I were to go with another system it would probably be the CMX.
Not saying anything negative towards C3, I just like the fact that the brake is on the bottom with CMX,and they were the pioneers of this system. They may weigh a little more though.
Would have been awesome if Polaris used it from the start
Not saying anything negative towards C3, I just like the fact that the brake is on the bottom with CMX,and they were the pioneers of this system. They may weigh a little more though.
Would have been awesome if Polaris used it from the start
My Thoughts on CMX
Commenting about the CMX only....
I spoke with Mark at CMX just yesterday.
In addition to the wonderful system that is available now with the 1" Drop/Roll for more clearance... We were talking about offering a direct replacement truly "NO-CUT, BOLT-IN" design for the PRO RMK.. If there were enough interest, he will consider offering this as an option.
I've had the opportunity to install and run the CMX in a PRO RMK (2011)...
Here are my thoughts.
The CMX drive is time tested and as pointed out above... has some design improvements over the stock system that would be just too expensive to incorporate into a consumer product and keep the price point reasonable.
This belt drive has been refined over the last decade+ of use and refinement. There are some people that have run this on big bore 1100cc sleds and bigger with no issues. Sure, in the early days...10 or 12 years ago, there were some issues with belt quality and holding up... but this is situation that has been remedied over the years.
One of the main features is the brake mounted to the driveshaft which serves two fuctions... 1) Eliminates loads generated from braking transferred to the belt 2) Safety factor of still having brakes IF the belt were to break.
The Quality of the CNC work and hardware used is top notch, all pulleys are CNC machined and precision cut... With different ratios available.
The drive shaft solid 7075-T6 aluminum... an expensive and tough alloy... the hex is a beefy 1.25" and carries the drivers of your choice.
There is an aluminum "bash guard" that is included in the kit as well.
The Jackshaft is high strength gun-drilled (hollow) and lightweight as well. The bearings are all top notch NTN with a precise fit on the shafts and into the bearing carriers.
The system features a tensioner to be able to set proper pre-load for the given HP and ratio chosen.
The CMXDS is a belt drive system that takes the design, quality and materials to another level.
.
Commenting about the CMX only....
I spoke with Mark at CMX just yesterday.
In addition to the wonderful system that is available now with the 1" Drop/Roll for more clearance... We were talking about offering a direct replacement truly "NO-CUT, BOLT-IN" design for the PRO RMK.. If there were enough interest, he will consider offering this as an option.
I've had the opportunity to install and run the CMX in a PRO RMK (2011)...
Here are my thoughts.
The CMX drive is time tested and as pointed out above... has some design improvements over the stock system that would be just too expensive to incorporate into a consumer product and keep the price point reasonable.
This belt drive has been refined over the last decade+ of use and refinement. There are some people that have run this on big bore 1100cc sleds and bigger with no issues. Sure, in the early days...10 or 12 years ago, there were some issues with belt quality and holding up... but this is situation that has been remedied over the years.
One of the main features is the brake mounted to the driveshaft which serves two fuctions... 1) Eliminates loads generated from braking transferred to the belt 2) Safety factor of still having brakes IF the belt were to break.
The Quality of the CNC work and hardware used is top notch, all pulleys are CNC machined and precision cut... With different ratios available.
The drive shaft solid 7075-T6 aluminum... an expensive and tough alloy... the hex is a beefy 1.25" and carries the drivers of your choice.
There is an aluminum "bash guard" that is included in the kit as well.
The Jackshaft is high strength gun-drilled (hollow) and lightweight as well. The bearings are all top notch NTN with a precise fit on the shafts and into the bearing carriers.
The system features a tensioner to be able to set proper pre-load for the given HP and ratio chosen.
The CMXDS is a belt drive system that takes the design, quality and materials to another level.
.
In a world where money doesn't matter I'd add the CMX belt to my list. But I can't justify replacing a sled that I bought because it has a belt drive...with a new belt drive. I did finally break a belt but it was on a very hard landing where the track was loaded. I was able to drive out but had to get the belt replaced (under warranty).
I think the CMX option is great for RMK's w/o the QD or previous sleds w/ no belt. However, I'd like to see Polaris make adjustments to their current QD. Some have said that an adjustment would be the answer. I'd like to see them use a different belt. The current one has the consistency of plastic. I'd like to see a Gates belt that is known to hold up well and possibly be more affordable.
I think the CMX option is great for RMK's w/o the QD or previous sleds w/ no belt. However, I'd like to see Polaris make adjustments to their current QD. Some have said that an adjustment would be the answer. I'd like to see them use a different belt. The current one has the consistency of plastic. I'd like to see a Gates belt that is known to hold up well and possibly be more affordable.
G
geo
Well-known member
Poo informed the dealers of a new more heat resistant belt. Should be tougher too.
MH you are a wealth of experience and connections. Is there any chance you could or would try to put together a sizeable group purchase with CMX?
It could start with you asking them on say price points for certain number. ie 100 would be this price, 500 would be this price. Then you take sizeable deposits (I'd trust ya with a 1000 bucks lol) and hold it til the # is reached and hand it to CMX to get it rolling or refund (with a percentage retained by yourself for the effort) if the #'s are never reached.
I don't believe the OEM system is a fail by any means but I love mechanical art. This system is art to me. I just don't have the quite the jingle needed but with a decent discount I might be able to justify it for myself lol.
One thing I`ve learned is snow doesn`t change. A decade from now it will be the same stuff. I`ve waited for over a decade to get something built to go on the snow that wasn`t a trail based design with a track.
I can see me keeping this Pro for a long time and just keep hanging new art on it lol. That CMX piece would be a nice start to my collection.
MH you are a wealth of experience and connections. Is there any chance you could or would try to put together a sizeable group purchase with CMX?
It could start with you asking them on say price points for certain number. ie 100 would be this price, 500 would be this price. Then you take sizeable deposits (I'd trust ya with a 1000 bucks lol) and hold it til the # is reached and hand it to CMX to get it rolling or refund (with a percentage retained by yourself for the effort) if the #'s are never reached.
I don't believe the OEM system is a fail by any means but I love mechanical art. This system is art to me. I just don't have the quite the jingle needed but with a decent discount I might be able to justify it for myself lol.
One thing I`ve learned is snow doesn`t change. A decade from now it will be the same stuff. I`ve waited for over a decade to get something built to go on the snow that wasn`t a trail based design with a track.
I can see me keeping this Pro for a long time and just keep hanging new art on it lol. That CMX piece would be a nice start to my collection.
Last edited:
H
HenkeEdge
Active member
Looks like Polaris should bought CMX-stuff and use as Original. That was a neat looking kit.
What price range?
seems like a lot of money and work to put an aftermarket belt drive on a sled with a factory belt drive, considering if you do have and issues, your dealer will more than likely warranty your belt and drive components. I'd leave it alone I guess.
I installed the cmx belt drive on my '13 pro after ripping all the cogs off the stock belt within the first 100 miles and then having to take another 100 miles to break in another belt I decided it wasn't something I wanted to wait for. The cmx belt has no break in time, you install it and ride it like you stole it. I think the cmx belt drive is more efficient that the Polaris belt drive. My wife has a 13 pro also with the stock belt drive and pulling the two sled out of the trailer or garage you can easily tell the resistance on the cmx belt drive is my less. The cmx belt drive is a pretty good way to go to fix IMO the weak link of the 13. You don't have to run a collar on the track shaft, because you get a new shaft. And you get a much stronger belt along with a tensioner. Different gear ratios. You can change the belt on the hill, if it ever did break, without having to have the alignment tool needed for the stock belt drive system. The brake is on the bottom shaft so if you do break the belt you still have a brake. And to top it all off Mark at cmx is outstanding to work with.
Different angle
What is the pic showing???
I will try and get better pics tomorrow in the light, that's how far out the the brake caliper sticks through the foot vent with the cmx belt system. Not hardly any.
The white is the foot well vents from mike Taylor, sorry again for the bad pics
Thanks! Could you also get a shot from the bottom to show the belt/brake guard and how much it extends down?
Yeah. I will get some pics tomorrow and post them.
If I trade my 13 Pro with 500+ miles on it at the end of the season for a 14 what am I getting in regards to an upgrade? Sounds like the track shaft will be the same with tighter tolerances but same mfg process and untested. 40% stronger belt with the same break in procedure and untested. Jack shaft same. Brake location same. Are these problems going to go away? Don't know yet. Sounds like another year of R&D by the buying public to me, AGAIN! The ONLY thing I could hope for would be stronger castings which I highly doubt will happen. Boot price for a new snowcheck? Guessing around $3K, apples to apples. Mine has a 4 yr warranty. CMX kit is what, around $2500? With a quick summer install project I get rid of A LOT of known and potential head aches, gain a superior product and I'm $500 ahead in the end with 3 yrs left on the warranty and big deal if there's a few hundred miles on it. I think I just talked myself into my 14 sled decision. That was easy! CMX for my 13 Pro!!!
You say it rolls easier than your wifes sled and obviously more reliable and probably gets up on the snow quicker with the drop.
How do the 2 sleds compare side by side and is that the only changes made to the 2 sleds?
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