RE: parts for 450 clone and 500 clone
A source I use for my EXI carbon edition 450 and 500 is Heliproz.com. Trex parts.
Trex 450 and 500 tail shafts are harder than the clones. When buying main shafts specify you want the "Carbon steel "
shafts. Much harder than even the Trex standard main shaft. The guys at Heliproz tell me you can actually bend a standard 450 main shaft doing hard 3-D .
Jim