I'm running Bridgestone T30 Battlax 150/70ZR-17 on a 3x17 3-spoke rear rim, and Bridgestone T30 Battlax 110/80ZR-18 on a 2.5x18 3 spoke front rim on my K75. Mind you, I converted my suspension both front and back to a K1100 fork with K1100 transmission, centrestand and Paralever backend. I don't have interference with either the centrestand, swingarm or the shock with this setup. I think you are getting pretty close to the rear swingarm with the standard Monolever backend, so you may have to space the wheel out a little. Check for clearance on the centrestand as well.