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Author Topic:   crank limits
posted October 24, 2003 03:26 PM
Does anyone know or have an article they know of explaining the stregth and weaknesses of the different alloys used in forged steel cranks. Or even better what are the reccomendations for max HP or RPM for the more common ones, 1053, 5140, 4130, 4340.

posted October 24, 2003 07:40 PM
you have them in order of quality allready. though 1053 in my opinion is worse than a cast crank....

i have seen at least 7 crack.

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