I think the stock Brompton tyres get a bad rap.
Sure, they’re not as invincible as Marathons, nor as light and grippy as Kojaks, but they’re a great compromise between the two. 146 more words
Tags » Kevlar
Electronic cars and planes are the wave of the future, or so we’re told, but if you do the math on power densities, the future looks bleak. 199 more words