Upgrading to slicker tyres

[andrew_s]

Internal and external rim width generally differs by 5-6 mm, at least in non-tubeless.

 

[plastic_cyclist]

Maybe try a GP5000 in a 28mm? Sporty tyre but carry a spare tube and pump

https://www.sigmasports.com/item/Continental/GP5000-Clincher-Tyre/KJ5Z

or rather cheaper https://www.sigmasports.com/item/Vittoria/Rubino-Pro-IV-G20-Clincher-Road-Tyre/M67U

tubes should be fine if you have 32s

UPDATE for Vickster: I went plumped for the Rubino-Pro tyres and I've shaved 20 mins off all my previous routes - unbelievable !! Thanks for the recommendation !

 

[Drago]

Internal and external rim width generally differs by 5-6 mm, at least in non-tubeless.

Where the hell is @Fnaar when you need him?