They are almost the same exact hub, right? QR is slightly different, races are slightly more polished. They shaved a small amout of weight off the hub body... and that is really about it.HTR4EVR said:It's a bad hub problem. I know bwcause the hubs I use in every ride are this:
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SHIMANO XT DISC M756 HUBS
Never has a problem in years. But some ocasional riding with the M475 and they die. Not the best for Shimano. At least they are the same size of the SHIMANO XT DISC M756 HUBS, and I'm doing the replacement my selft.
As somebody who has clocked about 3000 miles on a set of those exact XTs, and about 1000 on that same Deore, and have had both apart to service them including servicing both freehubs, I can tell you there is not much difference. There are a few differences, but not nearly as big as you think. Maybe that rubber outer seal doober, but I think my Deore had that on there too. I dunno, that was a few years ago. I could be wrong.HTR4EVR said:They are not the same, not in quality. There is a difference when you open a XT from a Deore. There is a reason why you pay less or more. But it is just my opinion based on a bad experiece. The M475 is not as good as the XT.
... I just saw your post on your freehub pawls breaking. New freehub - $20, and you can do it yourself with a 10mm allen wrench.HTR4EVR said:They can be ok for light riding, in my case the the free wheel dye in the first month with rides on flats fire roads and paved roads along the Santa Rosa river. No good. At least they worked good for you. In the positive side I got motivated to enter into wheel building and it has been easier than I though.
Yes, you are right, but I got a free hub replacement from Jenson and did not solve the other noises. . I had other problems with the hubs. I already got my XT hubs and I'm redoing the WTB Speed Disc rims with them. But thank you for the suggestion. I have better wheels on my bike any way, I took off the WTB SD out of my bike many months ago, they are going to be my extra set of wheels for my two bikes.pimpbot said:... I just saw your post on your freehub pawls breaking. New freehub - $20, and you can do it yourself with a 10mm allen wrench.
Did I mention the Deore uses the same exact freehub as the XT? You don't believe me, look it up on the Shimano website.
The berings never ran smoth, always sound crushing inside the hub and funny movement in the free hub.Any way has been good to read all you wrote about the parts, is always nice to here from people with knowledge.pimpbot said:As somebody who has clocked about 3000 miles on a set of those exact XTs, and about 1000 on that same Deore, and have had both apart to service them including servicing both freehubs, I can tell you there is not much difference. There are a few differences, but not nearly as big as you think. Maybe that rubber outer seal doober, but I think my Deore had that on there too. I dunno, that was a few years ago. I could be wrong.
If you know what the differences are, why don't you share them with us?
Heck, I got my Deore from a swap meet from somebody who was throwing a wheel out because two spokes were broken and the bearings were seized from misadjustment, neglect and grit. I replaced the cones and balls (to the tune of about $15), replaced two spokes and rode it another 1000 miles before giving it to a friend. He put it on his bike that was ripped off a month later. That thing just wouldn't die.
My only gripes with Shimano hubs is that they are not terribly stiff (as in they twist in the fork and rear triangle under big side loads), and they are kinda heavy.
Beotch and moan as you see fit, but I'm telling you, there are zillions of those same exact hubs spinning worry free out there. If you did get a bad one, and it is bad by no fault of your own, it is a complete freak occurrence.
You still have not mentioned what went wrong with your hub. You said 'They are fry'. Do you mean you fried the bearings? You broke the freehub pawls? The Freehub locked up? Any of those problems are a $15-$20 fix. Oh, and ask your LBS what parts to replace them with. You'll find they use the exact same parts for XT and Deore.
$15 and spend a little time fixing them is much nicer than spending $35 for a set of new spokes and $45 for each hub... or paying the LBS $50 to lace it up for you.
The things are dead simple. I'm telling you... you can fix it. Go read Sheldonbrown.com and get an education in bike stuff.
While the guts of both the deore and xt hubs look very similar there is actually differences that effect longevity rather than weight. in the XT you'll find more true bearings, harder cones that are higher polished and the xt does also have better seals. not to mention the xt free hub will take a lot more abuse. the deore isn't a bad hub, however it wont hold up like a xt will. with any loose ball hub you'll need to properly adjust the cones out of the box if you intend for them to last longer than 1 season.pimpbot said:As somebody who has clocked about 3000 miles on a set of those exact XTs, and about 1000 on that same Deore, and have had both apart to service them including servicing both freehubs, I can tell you there is not much difference. There are a few differences, but not nearly as big as you think. Maybe that rubber outer seal doober, but I think my Deore had that on there too. I dunno, that was a few years ago. I could be wrong.
If you know what the differences are, why don't you share them with us?
Heck, I got my Deore from a swap meet from somebody who was throwing a wheel out because two spokes were broken and the bearings were seized from misadjustment, neglect and grit. I replaced the cones and balls (to the tune of about $15), replaced two spokes and rode it another 1000 miles before giving it to a friend. He put it on his bike that was ripped off a month later. That thing just wouldn't die.
My only gripes with Shimano hubs is that they are not terribly stiff (as in they twist in the fork and rear triangle under big side loads), and they are kinda heavy.
Beotch and moan as you see fit, but I'm telling you, there are zillions of those same exact hubs spinning worry free out there. If you did get a bad one, and it is bad by no fault of your own, it is a complete freak occurrence.
You still have not mentioned what went wrong with your hub. You said 'They are fry'. Do you mean you fried the bearings? You broke the freehub pawls? The Freehub locked up? Any of those problems are a $15-$20 fix. Oh, and ask your LBS what parts to replace them with. You'll find they use the exact same parts for XT and Deore.
$15 and spend a little time fixing them is much nicer than spending $35 for a set of new spokes and $45 for each hub... or paying the LBS $50 to lace it up for you.
The things are dead simple. I'm telling you... you can fix it. Go read Sheldonbrown.com and get an education in bike stuff.
as somebody that regularly works on bikes and orders on QBP the deore and xt free hub bodies are not the same, they are interchangeable however. deore free hub retails for about 20 bucks, xt retails for about 40.pimpbot said:... I just saw your post on your freehub pawls breaking. New freehub - $20, and you can do it yourself with a 10mm allen wrench.
Did I mention the Deore uses the same exact freehub as the XT? You don't believe me, look it up on the Shimano website.
True. It's strange that when something works perfectly people tend not to talk about it. But when it stops working, they are loud as they can be. Read my upper post.calvus said:Do the HB M525 hubs have about the same guts as the M475? I keep reading bad reviews on them but I think that when failure happens it is much more likely to pop up on a review. Who knows how many are out there getting beat to crap without maintenance and surviving fine.