SBM Crank Identification Help!
Forged are easy from 20 feet away: if it has rounded throws, its forged. sharp 90's on the counterweights as if molded (cast!) are a dead giveaway. Specific models from a crank is gonna be tough unless its a forged with holes in the throws, then its a 340. Both these are forged...guess which one is a 340 spec?
Ooh, one has a huge scallop out the flange too....? A great place to break if FedEx drops it in transport! :(
Forged are easy from 20 feet away: if it has rounded throws, its forged. sharp 90's on the counterweights as if molded (cast!) are a dead giveaway. Specific models from a crank is gonna be tough unless its a forged with holes in the throws, then its a 340. Both these are forged...guess which one is a 340 spec?
Ooh, one has a huge scallop out the flange too....? A great place to break if FedEx drops it in transport! :(