Welcome back to Geek Warning, a podcast by the Escape Collective, that covers everything to know in the world of bicycle tech. James Huang said farewell in our past episode, and with that, Dave is joined by a new voice that knows a thing or two about bicycle-related things – Brad Copeland.With a mountain bike World Cup race at Nové Město freshly finished, Dave and Brad discuss things in use by the winners, technical problems by a race favourite, and trends in tyre tech.The geeks share their favourite tubeless tyre sealants and a PSA applicable to all.It’s a relatively light week in terms of tech news, still, Brad and Dave share their thoughts on DT Swiss’ new premium gravel wheelsets, new well-priced carbon wheels from Easton, and a new gravel race jersey with its own sweat-patch. Time stamps:4:10 – Pre-Olympic tech spotted in use by Pauline Ferrand-Prevot and Tom Pidcock10:55 – Speculating about Victor Koretzky’s tech woes15:20 – Are wider tyres always better for gravel and MTB? What does that mean for the future of tyre inserts?37:25 - Pick one: tubeless tyre sealant50:05 - PSA: test your spares!57:10 - New DT Swiss GRC 1100 and 1400 Dicut gravel wheels1:08:00 - Easton’s new EC90 ALX gravel and all-road hoops1:10:40 - Castelli adds a hydration bladder to an aero jersey, so gravel