Hey all hope to get some advice from you good folks on here. I recently purchased a used set of RC51 wheels from a member on here. Can some one with these wheels advice me if i am missing any parts and if so what they are...Pics attached. I have the rims plus the holder of the back sprocket...does not fit the stock 40 sprocket.I did email the seller but he was unable to help as he explained it bolted on with what he has sent me. Your help is appriciated!!!!
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