I have a Fuji Absolute 3.0 (about 2011) with a generic crankset. The triple chainrings are stamped with 'SAMOX'. It is a 30-42-52t set. I favour the middle chainring, which is now badly worn and needs to be replaced. I have also recently replaced the chain and cassette (8 speed).
The teeth on the largest and smallest ring are in relatively good order, and I have a tight budget, so my preference is to change only the middle ring. However, I can't find any SAMOX parts or any details about the compatibility, and I don't know anything about chainring specifications, bolt layouts, etc.
My other option is to replace the entire crankset and bottom bracket (there are occasional creaks and bangs, so it might be time to do so), but then I face not only the cost, but also ensuring the crankset will match the other components.
Does anyone know whether a Shimano or other 42t chainring will fit this configuration?