Tom,
Mike Kirby says the cast cranks last longer for him on the 250's.
He has tried custom forged cranks and they did not last as long.
They started cracking.
I here guys turning 8000, to 10,000 RPM with 250's w/stock cast cranks.
I think custom cranks here are $4000.00 - $5000.00.
Douglas, said they are about $1400.00,if I remember correct, maybe more?? Where he lives.
