Maxxis Refuse come in 40c now - 510g claimed
Marathon Supreme V guard are sold as 42 but labelled 40 - 490g claimed
Vittoria Voyager Hyper - claimed 40, labelled 38 - 44og claimed
Compass whatever pass - 38c but will probably stretch a little - extralite 359g
700x40 road (slick) lightweight tyre .. does such thing exist? I am afraid the 35mm Kojaks I have might look a bit skinny on the new build ..