I think the clearance at pinch points is the same, it looks like it narrows back to the mk2's width where it goes under the brake bridge.
But I have buckets of space on my bike, so couldn't tell how well it'd work in cases like yours.
Currently have 24mm rims and 25mm gp4000s, so not much space left, probably about 2mm clearance at most.
Will probably have to downsize tyres before anything will fit
@Acliff started
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I think the clearance at pinch points is the same, it looks like it narrows back to the mk2's width where it goes under the brake bridge.
But I have buckets of space on my bike, so couldn't tell how well it'd work in cases like yours.