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Hey everyone looking for a quick release tunnel bag system that is not to overly priced but provides excellent protection and water proofing. I have a 15’ pro 155 and wanted to utilize the lock and ride system as best as possible. Here’s what I came up with.
1.Old worn out hyfax (40% worn was perfect thickness but kits come with washers if they are further worn) I used 2 30” pieces and removed the walls(area of hyfax that sits over the rail) 2” on each end and one section in the middle removed from 14”-16”
2. then drilled 1/4” holes on the center of each notched area for the Polaris lock n ride kits to be used (p/n 2881260) $15 per kit and I did 6 kits for a total of $90 the biggest expense
3. picked up two Apache 3800 cases( pelican style) $30 each on sale.
4. Next stop was hardware store for 8 carriage bolts 5/16” with acorn style nuts.
5. drilled 4 holes in each corner in my hard cases 12.5” on center to match Polaris lock n ride on center measurement which will also be your hyfax in center measurement.
6. install carriage bolts to hyfax and mount cases to hyfax with a dab of silicone on the threads to keep moisture out. ( mounted my cases 4” from the ends of the hyfax facing opposite for most space to open the cases)
Before cases mounted
finished product
on the snow with it this morning and had no issues with cases being to tall when sidehilling or hoping from side to side
old holes are from version 1.0 the 4 acorn nuts are the finished mounting hardware. 
Example of carriage bolt and acorn nut in hyfax rail.
I am not claiming this to be the best storage for everyone but for what I do I found this to best.
I have one case dedicated for camera gear that’s mounted on the back (as it’s lighter) and my second case carries a spare belt, tow out straps, extra saw, siphon hose etc. a handful of other emergency items. Then there’s a foam separator I put over those items so I can use the top to store water, snacks, extra layers, gloves etc.
On top of that I have a backpack with my shovel and things I couldn’t “live with out” in the situation of being separated from the snowmobile.

1.Old worn out hyfax (40% worn was perfect thickness but kits come with washers if they are further worn) I used 2 30” pieces and removed the walls(area of hyfax that sits over the rail) 2” on each end and one section in the middle removed from 14”-16”
2. then drilled 1/4” holes on the center of each notched area for the Polaris lock n ride kits to be used (p/n 2881260) $15 per kit and I did 6 kits for a total of $90 the biggest expense
3. picked up two Apache 3800 cases( pelican style) $30 each on sale.
4. Next stop was hardware store for 8 carriage bolts 5/16” with acorn style nuts.
5. drilled 4 holes in each corner in my hard cases 12.5” on center to match Polaris lock n ride on center measurement which will also be your hyfax in center measurement.
6. install carriage bolts to hyfax and mount cases to hyfax with a dab of silicone on the threads to keep moisture out. ( mounted my cases 4” from the ends of the hyfax facing opposite for most space to open the cases)






I am not claiming this to be the best storage for everyone but for what I do I found this to best.
I have one case dedicated for camera gear that’s mounted on the back (as it’s lighter) and my second case carries a spare belt, tow out straps, extra saw, siphon hose etc. a handful of other emergency items. Then there’s a foam separator I put over those items so I can use the top to store water, snacks, extra layers, gloves etc.
On top of that I have a backpack with my shovel and things I couldn’t “live with out” in the situation of being separated from the snowmobile.






