The distance from the centre of the rear axle to the edge of the chainstay bridge is 220mm. You can see in the photo that the bridge itself is indented even further by another 2-3mm, as is the closest chainstay. The gap at the closest chainstay to the tyre bulge is about 7mm. In fact, the indent on the chainstay is not opposite the Kojak bulge, but a bit further away, to coincide with a wider tyre's bulge.