DeepFrz
Expert
I've heard some mixed opinions on this topic on the forums lately and would just like some things cleared up. At Hay Days I'm planning on getting either a 1.75" backcountry track or a 2" depending on the prices. (Bieniek is also looking for a 121 for his RTX) Do either of these size lugs require any other modifications to the sleds? Also, does anyone have any other recommendations for other mods while I'm in the process of swapping tracks?
Thanks for the help, see you guys at Hay Days.
Thanks for the help, see you guys at Hay Days.
Super Sled
Lifetime Member
- Joined
- Feb 25, 2009
- Messages
- 3,631
- Reaction score
- 5
- Points
- 1,218
- Location
- Riding on the North Shore, MN
- Country
- USA
- Snowmobile
- Summit X
While your in there I'd put extro drivers in and change the drive shaft bearing.
In terms of tracks, we live same place so ride similar snow. Id think either a 1.75 back country or 1.5 intense would work well. Both have a bit harder rubber so they can handle our conditions better than softer paddle tracks, which start coming apart fast around here.
A 1.5 should fit in your sled fine, even with tunnel protectors in. But if you never intend to use studs, many guys including myself just cut the protectors out. If you remove them s 1.75 will work. If you insist on keeping them you have to drop to 8 tooth drivers (your drivers are 9 tooth involute drivers btw).
You could go 2" by Removing tunnel protectors and dropping to 8 tooth drivers.
Have fun at hay days. I just learned i have to miss it this year, the first time in years. Oh well, my check book will love me for it.
In terms of tracks, we live same place so ride similar snow. Id think either a 1.75 back country or 1.5 intense would work well. Both have a bit harder rubber so they can handle our conditions better than softer paddle tracks, which start coming apart fast around here.
A 1.5 should fit in your sled fine, even with tunnel protectors in. But if you never intend to use studs, many guys including myself just cut the protectors out. If you remove them s 1.75 will work. If you insist on keeping them you have to drop to 8 tooth drivers (your drivers are 9 tooth involute drivers btw).
You could go 2" by Removing tunnel protectors and dropping to 8 tooth drivers.
Have fun at hay days. I just learned i have to miss it this year, the first time in years. Oh well, my check book will love me for it.
revster
TY 4 Stroke God
- Joined
- Aug 18, 2004
- Messages
- 1,752
- Reaction score
- 17
- Points
- 923
- Location
- La Salle MB
- Country
- Canada
- Snowmobile
- 2009 Yamaha Nytro RTX SE
I agree with super sled taking the tunnel protectors out for the 1.75 or larger, it doesn't cost anything and you don't need them if you are not studding.
On the XTX you can get away without extro drivers. I have a buddy that runs a backcountry on his XTX without them and it doesn't ratchet on him. That being said, I would add extros if you have room in the budget. Lower gearing is also a good idea with bigger lugs but not required. A smaller top sprocket will only run you around $20.
I've had both 1.75 and 2" tracks and there seems to be clear line between them. Sometimes there is only 1/8" between them but for some reason the 2" vibrates more, spins a lot more on the trail and wears sliders down a lot more. With a 1.75" I can go where I want to, including annual trips to the mountains and yet it still behaves well on the trails. 2" tracks just don't seem to behave themselves on trails. ....but I have not run every 2" out there, mostly challengers.
On the RTX extros are pretty much a must for a 1.75 track. The RTX will ratchet very easily and without them he will have to run the track extremely tight.
Have fun at haydays!
On the XTX you can get away without extro drivers. I have a buddy that runs a backcountry on his XTX without them and it doesn't ratchet on him. That being said, I would add extros if you have room in the budget. Lower gearing is also a good idea with bigger lugs but not required. A smaller top sprocket will only run you around $20.
I've had both 1.75 and 2" tracks and there seems to be clear line between them. Sometimes there is only 1/8" between them but for some reason the 2" vibrates more, spins a lot more on the trail and wears sliders down a lot more. With a 1.75" I can go where I want to, including annual trips to the mountains and yet it still behaves well on the trails. 2" tracks just don't seem to behave themselves on trails. ....but I have not run every 2" out there, mostly challengers.
On the RTX extros are pretty much a must for a 1.75 track. The RTX will ratchet very easily and without them he will have to run the track extremely tight.
Have fun at haydays!
couch
Expert
extro's + 1.75" backcountry is a great upgrade! Lug is plenty stiff for low / hard snow and bites in the powder.
DeepFrz
Expert
I heard from someone that the 2010 RTX SE came with extro drivers from the factory?
revster
TY 4 Stroke God
- Joined
- Aug 18, 2004
- Messages
- 1,752
- Reaction score
- 17
- Points
- 923
- Location
- La Salle MB
- Country
- Canada
- Snowmobile
- 2009 Yamaha Nytro RTX SE
DeepFrz said:
Yeah I believe that is when they started. If your buddy has the factory ones he is golden a 121x1.75 is a fun set-up!
DeepFrz
Expert
That's what he's planning. Where is a good place to get the extro drivers? Would factory RTX ones work just fine on an XTX?
revster
TY 4 Stroke God
- Joined
- Aug 18, 2004
- Messages
- 1,752
- Reaction score
- 17
- Points
- 923
- Location
- La Salle MB
- Country
- Canada
- Snowmobile
- 2009 Yamaha Nytro RTX SE
DeepFrz said:
The factory ones should work fine. Most guys are using either AVIDS or WHALS. Whals are cheaper but Avids seem to be more durable.
I bought mine from Ulmer. I bought them already installed on a new drive shaft.
Mtnviper
TY 4 Stroke Master
- Joined
- Aug 19, 2003
- Messages
- 1,477
- Reaction score
- 340
- Points
- 1,288
- Location
- Burlington Wa.
- Website
- fourstrokesolutionsllc.com
You can go up to a 2" on an XTX no problem as long as the tunnel/heat exchanger protectors are removed 
When converting to extrovert drivers on a XTX 8 tooth drivers will usually clear the front of the rail tips. If you would llike to stay with the 9 tooth driver, then the front of the rail tips will need to be shortened/trimmed by approx 3/8". So that the extrovert teeth do not contact the front of the rails as the front of the skid compresses upwards.
It's not a to bad of a job to do while the skid is out and the 9 tooth driver has the advantage of being more effeceint. 9 tooths will also give you a better track approach angle for use in deep snow.
Bill
When converting to extrovert drivers on a XTX 8 tooth drivers will usually clear the front of the rail tips. If you would llike to stay with the 9 tooth driver, then the front of the rail tips will need to be shortened/trimmed by approx 3/8". So that the extrovert teeth do not contact the front of the rails as the front of the skid compresses upwards.
It's not a to bad of a job to do while the skid is out and the 9 tooth driver has the advantage of being more effeceint. 9 tooths will also give you a better track approach angle for use in deep snow.
Bill
