i’m not saying you need to go to 30+, but 25-28s will fit on OPs easily and make the world of difference for a simple commuter. yes they will fell ‘slow’ at first, but then you realise how much better they roll along the road, over bumps, etc… after all do you spend more time stopping/starting or rolling along?
My new favourite tyre is the Schwalbe Sammy Slick 35c. Been using these on my CX commuter for a month or two now and they rock!
Fat, low pressure, but still fast, and has knobs on the side for safe cornering. Can’t believe a tyre of this size is this fast! Blakey, you were right all along…