Well they are not the same...just look at the parts numbersAbout a month and a half ago I was having issues with my rear hub and took it into the LBS. The freehub was trashed and the cups were scored so the hub was basically done. I was short on time before a weekend trip to Pisgah, so I got a cheap Alex rim with a Deore M525 hub. The LBS told be this hub would be an upgrade from the stock Joytech hub I had. I mounted the wheel up and took it for a ride. The first steep climb I hit trashed the freehub. The shop fixed it up, but I don't want to risk wasting any more rides with a weak freehub. According to this and other threads the XT level M756 freehub fits my M525 and is more durable (more points of engagement?). I asked the LBS about this and was told that the freehubs are the same and that the XT is no more durable. Which is right?
Looking at 2012 Tech Docs, it appears that Shimano has made the M529 available with the 32pt freehub body from the M629/M665Is it 32 poe? I thought shimano doesnt have a 32 poe 6 bolt hub, but a CRC lists the 529 as 32 poe.
Also, the 665 freehub doesnt fit 525 hubs.
Are the part #s the same, because on all the Shimano tech docs Ive seen, they are different. This is what I came up with..Looking at 2012 Tech Docs, it appears that Shimano has made the M529 available with the 32pt freehub body from the M629/M665
So what's the verdict? Which freewheel hub do people prefer to swap the stock M525 freehub? M756 or the M529? It sounds like the 529 has almost twice the POE of the 756. Does this mean the 529 will engage quicker? Also any difference in quality between the two?