Aktiv Grizzly

Aktiv Grizzly is dual-track snowmobile manufactured by Aktiv Maskin Östersund AB in Sweden. The snowmobile is equipped with dual 38 x 384 cm tracks and single front ski. Also dual front skis has been available for XP. Tracks cover area almost 1 m2, making it well suited for deep-snow operations. The Grizzly is powered by a 497 ccm Rotax 503 Scandinavia, producing 38 HP (28 kW) at 5700 RPM. The carb is a VM 32, supplied by Mikuni. Earlier Grizzly (de luxe) have 1+N+1 gearbox and last model (XP) (1989–1991) have 1+N+2 gearbox. The Grizzly was produced from 1979 to 1991. It is still recognized one of the best dual track snowmobile in the world. Both Bombardiers Ski-Doo Alpine, Ski-Doo Alpine 2 and Ockelbo 8000 are similar dual-track snowmobiles. In the mid 80's, the Grizzly switched from the traditional wheelbased bogie to a flexible joint-bogie, which made the ride smoother and the passability much better.

Aktiv started making tracked vehicles 1957 when they started making Snow Trac, a small personal Snowcat that is roughly the size of a modern compact car. Aktiv started making small snowmobiles in 1973 when they bought Snö-Tric brand. First dual-Trac snowmobile made by Aktiv was Snö-Tric Blå 75- and SC 20/2 75-.

The Grizzly was also produced and sold on license by Polaris Industries under the name "Polaris Grizzly de luxe". This version had a Fuji 440 ccm engine. Also Finnish company Winha sold earlier grizzly (1982–1983) with own brand name Winha. Winha Grizzly had either traditional wheelbased bogie or flexible joint-bogie and it was equipped either with Artic Spirit AB 50, A3 engine or Fuji EC 44-2PM-3000 engine.

Currently there are two dual-track snowmobile in production, one in Russia under the name "Buran" and one in Italy under the name "Alpina Sherpa".

Aktiv Grizzly de luxe, 1988

Technical Data

Links/resources

• Skoterportalen Grizzly Page (Swedish)
• Red Cross in Norway are still using Grizzly
• David's Vintage Snowmobile Page on Aktiv Grizzly