Can anyone speculate as to the cause for the wear on my rear sprocket on my 103?? The teeth are worn down almost to a sharp point (ie: the wear slants down to the left).
Better yet, how do I correct the prob? I will buy a new sprocket and chain, but I don't know how to check for "wear" on a chain??
ps - if anyone has a 52 tooth sprocket and a chain to replace mine, pls let me know!