KMOD 37” Front End Kit for Polaris
The latest front suspension from KMOD has been designed using the latest in Cad-Cam technology. The use of this technology allowed them to take a very complicated design like the canted front suspension of the Polaris PRO-Ride & AXYS PRO-RMK and understand every detail of it from caster, camber,... Read more
The Tortured Primary: 911 Response Cover
While the snowmobile OEMs have continued to add horsepower, torque and displacement there continues to be a void in one very important area – the drive clutch. With perhaps the exception of the latest drive clutches from Ski-Doo, the rest of our sleds are coming with drive clutches that... Read more
Polaris IGX 146 Rear Suspension (800 SKS 146)
The new for 2018 Polaris 800 SKS 146” comes with a new (kind of) IGX 146 rear suspension. New in that it is a variation of the 144” IGX rear suspension that made its debut for 2017 in the Switchback Assault and Switchback 144” models. IGX = Ideal Geometry... Read more
Camso “Storm 150” Track with Dual-Height Lugs
The next-generation of snowmobile track has arrived with the Camso Storm 150. Designed for modern rider-forward snowmobiles, it is capable of breathtaking acceleration on-trail, excellent flotation off-trail and crisp control in all conditions. “High performance trail riders have been migrating towards deeper lug tracks in an effort to get... Read more
Camso 2018 DTS  (Dirt-to-Snow)  129” Conversion
Camso launched its 2018 dirt-to-snow bike conversion system, the Camso DTS 129, for this season. Building on last year’s successful introduction of the system on the market, Camso sought out feedback from snow bike riders when designing MY 18 kits in order to exceed consumer expectations. The result is... Read more
2018 Ski-Doo 850 E-TEC Driveline Update
Ski-Doo recently announced several driveline changes for their 2018 models. Changes to these 2018 models include; * Finned fixed pDrive sheave – (improved heat dissipation and cooling) * Revised CVT Calibration – (improved belt traction, less heat generation) * New drive belt – (longer lasting, better heat resistance) *... Read more
Track Pitch – A Changing Specification
When you go to replace the track on a snowmobile, you would always know what the length of the track was, and most likely you would know what the current lug height was and what the lug height was of the new track under consideration. But how savvy are... Read more
Point of Contact – A discussion on track length, lug height, and lug profile
With a car or truck we always talk about the “contact patch” that is provided by your tires. On a snowmobile, we instead have a track and skis as our points of contact. This being the case, having the proper track installed for your snow conditions, along with where... Read more
Variable Compression Engine
One of the key variables for an internal combustion engine is its compression ratio. This is the ratio of the maximum volume within the cylinder (when the piston is at bottom dead center) and the minimum volume within the cylinder (when the piston is at top dead center). Obviously,... Read more
2017 Ski-Doo RAS 3 Front Suspension
Ski-Doo’s Gen 4 REV models feature a new front suspension, the RAS 3 front suspension. Similar in design to the already stable and precise RAS 2 front suspension found on the REV-XS models (to maintain toe-out ski orientation upon maximum compression for precision), the even more precise RAS 3... Read more