Hi guys - I'm new to this forum (this is my first post), so I'll start by coming clean and saying up front that I don't own a Polaris snowmobile ... never have. I found this forum through TY. Thanks to Tom for setting this up. Great site you got here.
With that out of the way, I want to start a discussion about 3/4 sleds.
Since no manufacturer currently makes a snowmobile sized between a 120 and adult machine, I'd like to create some interest that hopefully will get the attention of the manufacturers to at least merit some consideration toward building one. I hope folks here will weigh in with input on the subject including whether there is a need for them, what features they should have and most important to me, whether any manufacturer currently has everything needed to produce a 3/4 sled.
With regard to the last question, I think Polaris has most of the pieces needed to build a 3/4 sled, and so that's why I decided to start this thread.
I think the biggest piece of the puzzle for any 3/4 sled project is coming up with the right motor. IMO, the motor should make good, but not excessive power if the market for these sleds will be youth or entry level riders. the sled manufacturers have moved away from building a smaller displacement motors, especially those designed for a CVT. Polaris however, is the exception.
In 2014 I believe, Polaris introduced the PolarStar 32 - a single piston, 325cc fuel-injected 4-stroke engine that is capable of producing 32 hp. This is a cut away image of that motor:
It's relatively small in size and I assume, not too heavy. I think it could be good fit for 3/4 sled application.
This motor is currently used in Polaris' ACE and Ranger ATV line-up, and utilizes a CVT as part of the drive train. Since the clutching for this motor already exists, I wonder if it could be used for a sledding application as well.
Polaris also has another piece of the 3/4 sled puzzle ... a smaller sized, lightweight skid. Polaris owns Timbersled Products. A Timbersled Mountainhorse kit, especially the 120 skid, could be a good fit for the PolarStar Engine and small and light enough for a 3/4 sled. Here's a photo of the Timbersled 120 rear suspension.
Except for the lug height, the Timbersled track and skid suspension components could be used. Shock valving might need to be spec'd differently, but that's an easy change to make.
So Polaris already has 2 of the major ingredients for the 3/4 sled recipe. Polaris certainly seems like the sort of company that is not afraid to take risks. In the last decade alone, Polaris has ventured into markets that other companies seem to less willing to enter until proven profitable. With these things in mind, it would make sense for Polaris to develop a 3/4 size snowmobile chassis. The question is whether there is a market big enough to support one? If so, what sort of sled should it be? What features would most people want? How much should it cost? Would you buy one?
With that out of the way, I want to start a discussion about 3/4 sleds.
Since no manufacturer currently makes a snowmobile sized between a 120 and adult machine, I'd like to create some interest that hopefully will get the attention of the manufacturers to at least merit some consideration toward building one. I hope folks here will weigh in with input on the subject including whether there is a need for them, what features they should have and most important to me, whether any manufacturer currently has everything needed to produce a 3/4 sled.
With regard to the last question, I think Polaris has most of the pieces needed to build a 3/4 sled, and so that's why I decided to start this thread.
I think the biggest piece of the puzzle for any 3/4 sled project is coming up with the right motor. IMO, the motor should make good, but not excessive power if the market for these sleds will be youth or entry level riders. the sled manufacturers have moved away from building a smaller displacement motors, especially those designed for a CVT. Polaris however, is the exception.
In 2014 I believe, Polaris introduced the PolarStar 32 - a single piston, 325cc fuel-injected 4-stroke engine that is capable of producing 32 hp. This is a cut away image of that motor:

It's relatively small in size and I assume, not too heavy. I think it could be good fit for 3/4 sled application.
This motor is currently used in Polaris' ACE and Ranger ATV line-up, and utilizes a CVT as part of the drive train. Since the clutching for this motor already exists, I wonder if it could be used for a sledding application as well.
Polaris also has another piece of the 3/4 sled puzzle ... a smaller sized, lightweight skid. Polaris owns Timbersled Products. A Timbersled Mountainhorse kit, especially the 120 skid, could be a good fit for the PolarStar Engine and small and light enough for a 3/4 sled. Here's a photo of the Timbersled 120 rear suspension.

Except for the lug height, the Timbersled track and skid suspension components could be used. Shock valving might need to be spec'd differently, but that's an easy change to make.
So Polaris already has 2 of the major ingredients for the 3/4 sled recipe. Polaris certainly seems like the sort of company that is not afraid to take risks. In the last decade alone, Polaris has ventured into markets that other companies seem to less willing to enter until proven profitable. With these things in mind, it would make sense for Polaris to develop a 3/4 size snowmobile chassis. The question is whether there is a market big enough to support one? If so, what sort of sled should it be? What features would most people want? How much should it cost? Would you buy one?
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