A Mountain Sled Built for Steep, Tight Backcountry — The 2022 Polaris PRO RMK 850 155 in Rigby

RIGBY SNOWMOBILE FIELD GUIDE

A Mountain Sled Built for Steep, Tight Backcountry — The 2022 Polaris PRO RMK 850 155 in Rigby

A concise, gear-forward guide to the PRO RMK’s design, deep-snow performance and operator details for riders planning an advanced outing in Rigby.

A Mountain Sled Built for Steep, Tight Backcountry — The 2022 Polaris PRO RMK 850 155 in Rigby.

Duration
Contact operator
Location
Rigby
Operator
Fun Run Rentals
Category
Snowmobile
Robert Eric Crews
Founder & Editor, The Adventure Collective
Published Verified

The 2022 Polaris PRO RMK 850 155 is presented in Rigby by Fun Run Rentals as a purpose-built mountain sled: balanced and precise for technical backcountry terrain, with a chassis and track architecture tuned to lift the machine on top of deep snow.

Highlights

Outing Highlights

THE DESIGN

PRO RMK: a sculpted cockpit for precise control

The RMK Matryx platform centers the rider with a sculpted cockpit, narrow seat and tapered tunnel to deliver a high level of rider connection and effortless control in tight, technical terrain.

THE TERRAIN

Built for steep, tight backcountry

Polaris positions the PRO RMK as the ultimate mountain sled for technical backcountry terrain — the right tool for tight trees, steep approaches and the steep-and-deep lines many riders seek.

THE PERFORMANCE

Deep-snow lift and lightning-fast response

Patented PRO RMK architecture, a tapered low-drag tunnel, Polaris-exclusive tracks and the low-inertia QD2 drive system combine to lift the lightweight chassis on top of snow and deliver industry-leading response.

What the day feels like

What Riding the PRO RMK Feels Like

On the PRO RMK you feel the machine rise into deep snow and respond instantly — the narrow cockpit and tapered tunnel keep the rider intimately connected to the sled, translating subtle rider inputs into precise movement through tight trees and steep pitches.

Suitability

Who it's for

Who this sled and outing are (and aren’t) for.

1
Experienced Backcountry RidersWell suited — the PRO RMK is engineered for technical, steep, and deep-snow terrain and rewards advanced rider technique.
2
Novice RidersNot a match — the offering is explicitly for experienced riders only and requires confidence in tight and steep terrain.
3
Riders Without DocumentationNot permitted — riders must be 21 or older and carry a valid US driver's license to participate.
4
Independent RentersAppropriate for competent, licensed adults seeking a high-performance mountain sled; operator policies require age and license verification.

Practical planner

Details to review before reserving

What to Bring

Bring a valid US driver's license; be prepared to demonstrate experience riding technical backcountry terrain.

Operator & Location

The PRO RMK is available through Fun Run Rentals in Rigby, Idaho.

Booking Notice

Review cancellation policies before reserving.

Frequently asked questions

Planning Your Outing

Who can rent and ride the 2022 Polaris PRO RMK 850 155?

Riders must be ages 21 or older and hold a valid US driver's license; the sled is intended for experienced riders only.

What kind of terrain is the PRO RMK designed for?

The PRO RMK is designed for technical backcountry terrain — tight trees, steep approaches and deep-snow conditions.

What platform and features contribute to the sled’s control?

The RMK Matryx platform, a sculpted cockpit, narrow seat and tapered tunnel provide a high level of rider connection and control.

How does the PRO RMK perform in deep snow?

Patented architecture, a tapered low-drag tunnel, Polaris-exclusive tracks and the low-inertia QD2 drive system lift the chassis on top of snow and produce rapid response.

Are there current booking promotions?

A big rate cut applies starting with 3-day bookings.