I purchase the SIP flywheel(20/20, 24/25 Art.No. 51007000), but I try to installed the flywheel at 19/20 and 24/25 crankshaft, It seems just match for 19/20 crankshaft, I think the flywheel you send is wrong parts......!!
The picture about SIP flywheel installed at 19/20 and 24/25 crankshaft were in attach file........