Plenty of tubs still made if you want them and can afford them. eg https://www.conti-tyres.co.uk/road-and-track/tubulars/competition In my racing days nobody thought of using anything else - I had my special racing wheels with silk tubs. There's nothing like the feeling (and sound) of riding a decent tub, but I've long settled for the convenience of a good quality clincher. I've still got the racing wheels in the loft - 32h Campag Record on Mavic rims and still with the 40 year old Clement tubs on them and a Maillard 13-18 block. Don't think I'll be riding them now. Actually inflating a tub makes it expand and grip the rim tightly, so you can ride an unglued tub. Though only as an emergency get you home measure. In the good old days when Merckx ruled, riders would keep a stock of tubs gently ageing in their cellars. So 8 year old tubs should be nicely matured by now. And the nimble fingers youngsters in my club earned their pocket money with a punctured tub repair service. It involved cutting the stitching at the site of the puncture, patching the tube, and resewing. Anyone here got any thoughts on the new generation of tubeless tyres and rims?