Ok, I went out again and it went much better this time, though that coaster brake is making me look a bit silly at times.
I put a bit more air in those tyres, no idea how much because I haven’t got a pressure gauge. I’ve only ever ridden 700c tyres where the rule I’ve always followed has been to pump them up as hard as you can get them.
I love the small drop bars, which help to give me a great position. The distance from tops to drop is less than normal.
The problem is the SRAM automatix 2-speed rear hub and coaster brake of which I know nothing. It doesn’t seem to want to fit properly. The wheel is over to one side. The unit is as far forward as it will go in the horizontal dropouts and there is very little slack in the chain so not even sure how to get it off.
Can I put a longer chain on and move it back in the slots a bit or will it then tend to move to one side under load?