OUR HD CRANK ON THE LEFT OEM CRANK ON THE RIGHT WE ARE GETTING REPORTS OF BENT RODS ON SOME OF THE NEW XR50/CRF50'S SO WE FOUND THIS HD ROD VERSION.. AND IT'S A HECK OF A LOT LESS $$$$$ TOOOOOO. THIS CRANK FITS ALL XR50'S AND ALL THE Z50'S THAT COME FROM HONDA WITH CDI IGNITION. THIS NEW CRANK COMES WITH BOTH BALL BEARINGS AND THE NEW CAM CHAIN SPROCKET. READY TO BOLT IN.... @ e STOCK_REPLACEMENT CRANKSHAFT_ASSY_HD (LONG_ROD) THIS_FITS ALL_XR50_XR70 ALL_CRF50_CRF70 1988_TO_99_Z50R 1982&83_PASSPORT LIFAN_50'S/70'S 13100/1P47FMD (S1193) S1193