Shimano 11 speed

[earth]

Is it true that the new 9000 11 speed cassette will not go on to previous wheels made for 10 speed cassettes?

If so is it a case of changing the freehub body?

 

[fossyant]

Yes if Shimano, you need new wheels as the hubs have changed. No change if you have the likes of Mavic as the free hubs are longer, and you use a spacer with a 10 speed cassette.

 

[earth]

Is that because those Shimano wheels only fit Shimano cassettes while other manufacturers make Shimano/Campagnolo freehubs and use a spacer with Shimano cassettes?

 

[earth]

I asked the manufacturers of my wheels and they said they were too old and the cassette would not fit on. They are not Shimano and I know there is a spacer between the largest sprocket on the cassette and the freehub body. I am guessing the manufacturer has it wrong.

 

[2Loose]

If the manufacturer said it, I would guess the spacer is there for another reason such as preventing the cassette from resting too close to the spokes. BTW. A freehub that will take a Campagnolo cassette will not take a Shimano or SRam cassette and vice versa.

 

[earth]

So why is it that Mavic wheels will accept the 11 speed cassette? Are Mavic the only manufacturers other than Shimano who make 11 speed compatible wheels? I suspect not and I don't see any one explicitly stating their wheels are 11 speed compatible.