Yes, they are 2" taller-both tires measured off the vehicle with a digital level and tape measure. I don't believe the stockers are a true 27". They are very soft rubber compound, that is why they are lighter. A stiffer compound- 8 ply- will hold rigidity better. I think this calculates to the big differences in height comparisons, to the stockers. Maybe my theory is wrong? Other people have a better conclusion?
Got them on. Final weight is 49.2lbs at each corner. I believe stock was 42 something in the rear? So they add some rotating mass. I have a qsc/STM setup. I don't even notice it. There is more top end-due to taller tire. Only a few mph. Mid range feels faster. 25mph-40mph. I believe it is because the tire is already turning and with the added mass, it feels to come on faster. Just by feel though.
Got 30ish miles on tires today. They are fantastic. They grip and hook up 10x better than stock. I rode in dirt, with several sections of rock. Semi flat rocks. Nothing very sharp. I averaged 35-40mph. Tires look perfect. No bad scuffs,tears, or problems at all. Highly recommend this tire.