The 250/450F Tire Combo from Artrax allows you to choose any front and rear combination of the following Artrax tire models. Get exactly what you need in size and features, at prices that you will not be able to say no to. Artrax MX-PRO Details Soft/Intermediate Tire. Artrax MX PRO tires offer excellent traction in ruts and flat corners. Tread pattern offers great traction in all terrains and improves braking grip. Durable tire compound. Artrax SX1 Details Intermediate/Hard Terrain. Shoulder knobs help you put power down in the turns. Stiff sidewall with 4-ply construction to resist punctures. Widely spaced knobs which help to prevent the tire from getting completely packed with mud and dirt. Artrax SX2 Details Soft Terrain. Offers excellent mud performance. Lug spacing helps shed mud and build up for better cornering and breaking. Artrax TG4 Details Soft/Intermediate Terrain. Front tire features T style shoulder knobs that help you put power down in the turns. Rear tire features a cupped style tread pattern to increase straight line traction and ribbed sub-tread between the knobs add control through soft sand and dirt. Stiff sidewall with 4-ply construction to resist punctures. Widely spaced knobs to prevent the buildup of dirt. Artrax SE3 Details Intermediate Terrain. The toughest, most competitive enduro style tire from Atrax. Stiff sidewall with 4-ply construction to resist punctures. If you need the burliest tire to get the job done, the SE3 is the right choice.