Heavy duty OEM replacement come complete and ready for installation with the original proven Hot Rods connecting rods, top end bearings, and crankshaft webs. Hot Rods heavy duty crankshafts are regarded as the premier alternative to costly OE manufactured cranks, bringing a level of uncompromising quality, design and innovation not seen in its competitors. Crankshafts are factory assembled and trued to OEM specifications, Hot Rods cranks will meet or surpass the OEM in performance and durability. Crankshafts are fully re-buildable with genuine Hot Rods connecting rods and bearings. Fits: Yamaha WR 250F 2003-2013.