It looks like a decent pair of running shoes weighing only 173.5g in my size (UK 7.5) and with enough Lightstrike Pro under the heel and midfoot to provide adequate cushioning and a responsive kick. However, these are only hypotheticals since I haven't tested these shoes on the tarmac and am considering returning them. The reason for this is that the left shoe feels really really tight at the outer side of the heel, hurting when the shoe is laced up in the usual way. I can't say whether it's the shoe or the shape of my left heel that is causing this. The shoes are designed to fit snugly . They are supper narrow in the heel, but not so narrow as to cause this kind of discomfort. I fear that if I were to take them for a run, I would get a painful blister on the soft side of the heel by the Achilles which would prevent me from running for several days. The shoes are too expensive to run in them just to see if the discomfort won't cause any issues. I wouldn't be able to return them if it did. I have since ordered Adizero Adios 4 Pro which are 14g heavier in my size, but a notch wider and with an extra 6mm of Lightstrike Pro. I've already run in them couple of times and they haven't caused me any fitting issues, so I'm unlikely to take a chance on Adizero Takumi Sen.