The M chassis, introduced in 2005, gained instant accolades for its lightweight maneuverability and benchmark power-to-weight ratios. For 2007, there are two new engines to improve the power-to-weight even more: the new 800 and 1000 EFI twins, and the 600 EFI II engine carries over from last year.
There are track length options and package options depending on the engine size selected. The M6 comes with either a 141- or 153-inch track. M8s come with a 162-inch option, and there is also a Sno Pro version with suspension updates that replaces the “Limited” branding of previous years. The monster-bore 1000 engine has a 153- or 162-inch track option, both available in Sno Pro trim as well.
All M-Series models have an updated ACT drive system with a push-button reverse system.
Rider-forward ergonomics equip the machines for positive input while boondocking. Sleds feature wide, hooked handlebars with a grab strap for off-trail maneuverability.
Front Suspension: AWS VI; Shocks/Travel: Fox Zero Pro/9.2 inches; Rear Suspension: FasTrack Long Travel; Shocks/Travel: Fox Zero Pro/17 to 19 inches (depends on track length); Features: M-Series sleds feature an adjustable ski stance ranging from 39 to 41 inches. Rear suspension travel, measured at the rear axle, is 17 inches for 141-inch tracks, 18 inches for the 153s and 19 inches for the 162-inch track.
All 2007 M-Series models have a Camoplast Challenger track with a lug height of 2.25 inches regardless of engine choice or track length. Track lengths and availability is as follows:
141 inches: M6 EFI, M8 EFI
153 inches: M6 EFI, M8 EFI, M8 EFI Sno Pro, M1000 EFI, M1000 EFI Sno Pro
162 inches: M8 EFI, M1000 EFI, M1000 EFI Sno Pro
600 EFI II Laydown:
Updated last year, the Suzuki 600 EFI II displaces 599cc and uses 46 mm throttle bodies to inject fuel. A 3D ignition, exhaust pipe sensor and Arctic Power Valve technology improve power and reduce emissions in this second-generation laydown engine. Arctic Cat claims 118 hp.