4' 0" Driver (G1873)
12 spoke casting with the crankpin inline
Machines to 42mm max and 39mm minimum
we can machine these casting to fit our standard square ended axles.Casting can be machined to G1MRA standard or fine scale.We have range of crank throws 5/16",3/8",7/16",15/32" or 6mm,7mm,9mm
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