Yamaha crankshaft assembly . FITS TZR250 [ not 3MA ] Fits TDR250 R1Z parallel Twin Models . Freshly bought in error from Webbs of Lincoln , new stock . This crankshaft has the uprated silver flat cage big end bearings as standard . Note this is not supplied with small end bearings or crank seals . Item in original package and never opened out of see through wrapping . Sent Royal Mail Tracked .