DT Swiss 2.0 Wheelset - Will it take 9-speed?

EBUK

Hiya,

I've recently got a Specialized Tarmac that has comes with the DT Swiss 1.0 Wheelset, running 9-speed Sora components.

I have a DT Swiss 2.0 Wheelset from another bike and wondered if the 2.0 wheels would take a 9-speed cassette? The 10-speed cassette that is on the 2.0 wheels doesn't require a spacer on the hub, if you put one on it means you can't tighten the cassette to the hub. This makes me think it is 10-speed compatible only, but wanted to see if anyone had any experience in putting 9-speed cassette on DT Swiss 2.0 hubs?

Thanks for your help.

stabilised

Brief answer is, 'probably'. The freehub body is the variable here, rather than the wheelset per se, and as long as you aren't trying to put a shimano cassette on a campag freehub or similar (which you can't do because the manufacturer's make sure that they aren't compatible) then you shouldn't really have a problem. Most 9/10 speed systems I'm familiar with use the same freehubs and there shouldn't be a need for spacers - just undo the lockring, slide the 10 speed cassette off, put the 9 speed on and tighten the lock ring back up.

EBUK

Hi stabilised,

Thanks for the quick & detailed reply, much appreciated. As you say, it is probably best I whip the cassettes off and swap them over to give it a go. If they tighten up okay then all should be fine....fingers crossed!

Pross

As far as I'm aware the width of a 9 speed and 10 speed cassette are the same width (as in an 8 speed) - actually the 10 speed may even be very slightly narrower from memory. This is the reason why indexed shifters can't work for different speed cassettes - the movement between sprockets is different on them. So has above, as long as the freehub body is compatible there should be no problem (as well as the Shimano / Campag lack of compatibility I believe there is also a problem with Dura Ace cassettes on other Shimano freehubs but not 100% on that).