I have emailed Dick in Shanghai, and will let you know as soon as I do!
All the best
David
Thank you David for your rapid response; particularly on a Bank Holiday Sunday! There is no panic, the bike is now performing well, after adjustment to the gears and chain by 'The Electric Transport Shop' in Cambridge.
Something that might be a clue concerning the 2 caps, is that when I returned from shopping yesterday (just one loaf & a newspaper!), the pannier (and bags) had slipped to the rear. Two (note the quantity 2) rods securing the front end of the pannier had become detached. The fasteners that had been securing (sic) the rods were loose. I reconnected the rods and tightened the fasteners. Could the caps have come from this area? If so, what must I do to return the bike to its original, but correct, status?
I attach another photo that shows the domed head of the caps.
Thanks again,
Don
PS Just seen Kenny's post. Looks as if you've confirmed my suspicion Kenny. Thank You. How should they be fitted?