both of these bike are exceptional in the woods as a rec bike or a hard-core crash-and-bash race bike. But in order to figure out witch bike would be best in the woods for you would be to find a dealer and try to test ride both of those bikes. Terrain is also a very important factor in which one of these bike would be better. the 400 has more displacement and likes more open areas to "unleashed the beast" so to speak. The 250 finds it self more comfortable in terrain where 3rd gear is not an option and one little slip could cause some serious damage to you and the bike. either way I believe both bikes will keep you satisfied and wanting more time in the saddle.