RMK® Assault® 155

The Backcountry Original, Extreme Tough 
2019 800 RMK® Assault® 155 is rated 4.9 out of 5 by 15.
Rated 4 out of 5 by from Looking for more 2016 Assault 800 155. One season old has 1500 miles on. Has been a worthy machine. Possibly the best machine I have ever owned. However there are a few things that I felt could have improved. Such as the the weak rear bumper that brakes because you drag you flap. The giant oaf skis it comes with, I rock the ones off an 06 best ski ever. The spindles are weak and break at the weak point every time. I also feel that the clutching or perhaps the gearing in the machine could be better than it is. I could go on and on about my sled that's it for now. I will say it's a great machine and still can be improved.
Date published: 2016-09-01
Rated 5 out of 5 by from Light, rolls over effortlessly Best fit a finish ever, about time! Engine technology is the only issue this sled has. Platform is excellent, don't mess with it. Engine needs attention every two years. Focus on technology in the engine. It may not be an issue on trail sleds, however on these sleds that are pushed harder and turning more track, it is an issue. I had a 2009, 2010, 2011,2013, and now 2016, the only one with no engine issues was the 2011, not a great percentage!!
Date published: 2016-09-18
Rated 5 out of 5 by from Makes a rider better I've ridden backcountry for 3 decades and owned 9 different sleds. I loved my first RMK assault, went places and did things I just couldn't do before. My new AXYS RMK Assault is a whole other level again. Holds a side hill line effortlessly, changes lines with ease. It just plain floats on top of the snow, goes where you want, turns when you want, holds the line you want. It makes me a better rider with less effort.
Date published: 2016-09-17
Rated 5 out of 5 by from Love the axys platform I previously owned a Polaris snowmobile in the pro ride chassis. After getting on the axys it was like nothing I have riden before. The throttled seemed more responsive and the maneuverability was above and beyond any expectations.
Date published: 2017-02-16
Rated 4 out of 5 by from Great handling , Motor is clean and smooth Just wish we can order color scheme we want at snow check time , Also no benefit or cost savings when I snow check , Not fair when anyone can walk into a dealer in January and by a sled for less then a snowcheck customer
Date published: 2017-02-16
Rated 5 out of 5 by from The right machine Polaris sleds are fun and make learning to shred easy!
Date published: 2016-09-19
Rated 5 out of 5 by from Bueatiful sled Fun to ride great in the deep snow very flikible and light
Date published: 2016-09-17
Rated 5 out of 5 by from 18 Polaris rmk assault 800 Bought a couple months ago only got 90 miles on it but this thing is a beast. Last sled I owed was a 2002 rmk 800 so a bit of a change. This thing floats great handles easy and a lot of power for North Dakota. I can’t wait until next year to take it to the mts and see what it will do in deep snow. But so far I’m in love the sled highly recommend this or a pro rmk.
Date published: 2019-04-23
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Customer Reviews
Starting at $14,899 CA MSRP

May be shown with additional modifications or accessories. Does not include destination charge or set-up fees.

Prove Yourself Above the Tree Line

The RMK® Assault® 155 is a backcountry mountain snowmobile built for extreme conditions. The tough-as-nails sled, featuring Walker Evans® shocks, is perfect for dominating cliffs and jumps. 

Instantaneous Lift

The combination of the raised and lightweight AXYS® chassis, a powerful Polaris® engine, and the Polaris-exclusive track designs pop the RMK® on top of the snow. 

Rider Balanced® Control

The AXYS® RMK® features Rider Balanced® positioning that delivers ultimate control for the rider for precise, effortless sidehilling. 

Immediate Response

The world's best mountain sled is built to be the lightest and most rigid, making it incredibly responsive to rider inputs. This allows you to change direction and maneuver confidently in all conditions. 

Make It Yours!

New for 2019 models, many options and colors are available on select models in-season through your local dealer. Contact your dealer for more details. 

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Snowmobiles Designed to Fit Every Rider

A wide range of proven sled options for confident control wherever you ride on the RMK® Assault®.  



<span></span> Engine Options <span></span> 800 Cleanfire® H.O. 
<span></span> Engine Type/Cooling <span></span> Liquid Cooled 
<span></span> Disc Brake Type  <span></span> AXYS® RMK® LWT 
<span></span> Drive System Type  <span></span> Chaincase
<span></span> Drive/Driven Clutch  <span></span> P-85 / TEAM® LWT 


<span></span> Front Suspension  <span></span> AXYS® Assault® Adjustable 
<span></span> Rear Suspension  <span></span> AXYS® RMK® 
<span></span> Shock Package <span></span> Walker Evans® Adj. Piggyback Needle 
<span></span> Ski Type  <span></span> Gripper 
<span></span> Track Options  <span></span> 2.25" Peak / 2.6" Series 6 


<span></span> Fuel Capacity (gal/L) <span></span> 11.5 / 43.5
<span></span> Overall Height (in/cm)  <span></span> 49.125 / 124.7
<span></span> Overall Width (in/cm)  <span></span> 46.5 / 1181.
<span></span> Ski Center Distance (in/cm)  <span></span> 41.5 - 42.5 - 43.5 / 105.4 - 108 - 110.5
<span></span> Overall Length (in/cm)  <span></span> 131 / 332.75
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