I have a 2007 TGB Outback 425C. It is rigged for muddin. It did great untill all in one night, both differentials busted. The yoke for the rear diff literally twisted in half. The front threw a bolt against the housing. They are extremely expensive to get parts for. I found out though that the frame and some of the other components are from a 2004 Suzuki Eiger. When I replaced the differentials with Suzuki parts, the bike has been great since. Also, the stock wheel bearings are doodoo. They need to be replaced before the bike ever sees a mud hole. Other than that, my son rides it now and has a blast tearing up the mud holes. He hits them full speed ahead. Thats my .02.