Hi, I fix bikes as a hobby and I typically work on older road bikes, as I live in the city and thats what people want down here. So every now and then I get a mountain bike to fix and sell and I have this Northrock XC6, which my understanding is a $300 entry level bike from cosco. Anyway, it is missing the rear derailleur AND hanger, and I wanted to know how to find the right hanger. I have attacked a picture of the space where it fits. I also was wondering if I read that it had a shimano acera detailleur, are there different kinds of acera, or can I be confident this will do the trick. http://www.amazon.com/Shimano-RD-M36...ano+acera+m36020140301_212217.gif
looks like a #52 would fit. I think the curve is a little different between the two. Looks like there was a #25 on there, but you can see the part where it is "white" from the rub doesn't exactly match up with the cutout. I'd still call to check with them to be safe though.