That you can’t be cynical about the achievement of Walter Greaves (page 3) - cycling 45,000 miles in one year - and only having one arm.
The British obsession with chainline (on many/most pages!) - but Walter only wore out two chains.
The ‘freehub’ design and the clear understanding that this allows you to move the bearings to the outside - saving broken axles (see page 1). Where did this knowledge go for 40 years?
The large number of spare parts that cost one penny (pages 19 to 28) - and this is in real money not this new-fangled, toy-town, decimal, nonsense.