Test ride to try out the new KHE MAC1.5 street BMX tyres. Not the folding version, didn't want to drop au$180 on tyres until I was sure I'd feel the spin-up improvement and ride improvement. The ride was very undulant, so it doesn't show in the numbers, and that's also in part to quite a few big rides on the acoustic bike in the last week or so. I was feeling those today, along with some recent restless sleep. Also, considering you can feel a really noticable weight difference between the old Schwalbes and the new KHEs, as well as a 100% improvement in ride quality. I reckon the lighter, folding 406x 38s will be worth the expense in another 18 months when I've got my value out of thes ones. Oh, and I met a fellow recumbent rider, like me! Even in a city of 6 million people, there aren't many "'bentheads" out there, so even meeting a 2 wheeler sofabike rider is a pleasure. magnificent, American-built Barchetta. looked like either 24" or 650b/27.5" but we admired each other's ride, then rode on. A fellow recovery patient, too. dunno if it was heart or something else. Felt a bit personal to ask.