Changing disc wheels over - rotors lining up etc?

Hi, currently I've got some dt Swiss r24 spline disc wheels (Shimano centrelock fitting) used with hydraulic shimano brakes.
Looking at getting some kinesis crosslights as a cheap summer wheel. They take the 6 bolt rotors so I'll need to buy those but I was wondering - is it a faff to have them line up correctly with the brake pads? Originally I thought you literally take one wheelset off and put the other set on...but I'm sure Ive read somewhere they may not have the same spacing? Anyone have any experience with this?
Cheers in advance
Looking at getting some kinesis crosslights as a cheap summer wheel. They take the 6 bolt rotors so I'll need to buy those but I was wondering - is it a faff to have them line up correctly with the brake pads? Originally I thought you literally take one wheelset off and put the other set on...but I'm sure Ive read somewhere they may not have the same spacing? Anyone have any experience with this?
Cheers in advance
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Posts
But to align the caliper is only two bolts.
Parktools :?:SheldonBrown
http://www.chainreactioncycles.com/hope-rotor-spacer/rp-prod3288
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