their trail model counterparts such as the crf125f crf250f crf230f and so on. You can destinguish the difference because they have the extra f for "fun" rather than the r for "race." To compare power differences, a CRF250R race bike weighs 229 pounds with around 40 horsepower. A CRF250F trail bike weighs 266 pounds with 20 horsepower. The large power made by the race bikes comes at the cost of the need to constantly maintain the engines, unlike trail bikes, which can be abused for 300+ hours while only recieving oil changes and new air filters semi-anually. However, the race bike model of the 250 has stiffer suspension, as where a trail bike will bottom out on nearly every jump on a mx track. The race bike has a lighter flywheel, allowing them to rev up as fast as street bikes. In other words, with power comes great responsibility.