Nordie
I've just fitted a 16T to my bike, instead of a 15 (because I could only get a 47T rear rather than 44T). Anyway, my 15T had slightly less clearance with the case saver that is standard with my bike than in the link's photo. The 16T fits fine. There is perhaps a couple of mm clearance to the chain. No problems in 500km. So I wouldn't let reduced clearance stop you fitting one to your bike.
Cheers
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