Lasts longer than chromoly
More resistant to corrosion than chromoly
Wiseco 64mm Pro Lite forged pistons
Includes water pump mechanical seal for long-lasting reliability
and balancer bearings included High-Quality Brands SKF
06-09 TRX 450R 450ER Stroker Crank +3 Hot Rods 4170 Crankshaft Assembly Bearings RZR 700 Lasts longer than chromoly4170, K047, 91002 HP1 601, 13000 MEY A21, 91001 HP1 601, 91002 HP1 601, 91201 MEB 671, 91202 HP1 601 FITS ALL '06+ HONDA TRX 450R AND 450ER MODELS Hotrods +3mm stroker crank assembly with connecting rod Part# 4170 Comes assembled Hot Rods, SKF, or NTN Crank bearings* (You will always receive OEM Quality or Higher Bearings) Crank Oil Seal Kit Makes 470cc with stock engine Replaces OEM Part # 13000 MEY A21, 91001 HP1 601, 91002 HP1 601, 91201 MEB 671,