R/C Tech Forums - View Single Post - Differences between o.s speed .21 v-spec speed alum and magnesium.
Old 06-23-2008, 03:49 AM
  #9  
maximugen
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crank pin is the small pin found on the end of a crankshaft that the conrod pivots on. most crankshafts show some wear here, but because of the DLC (hardcoating) process of the OS speed, there is pretty much no wear at all
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