30-07-2020, 08:34 AM
Colin - the tubes are under the main bodywork...
Stuart's pip pins are lovely, but it would mean the 'pip' was just retained by the inner edge of the tube, which is probably not very thick steel. Perhaps with an insert...
Duncan's route - yes, I'd agree, too modern for me too. (And no space underneath to allow nut fixing on both sides of the tube).
I've bought some tiny M4 wellnuts and knurled knobs to try out in a conventional manner and see if they are up to the job. I will be interested to see if the rubber confers some safety against them unfastening in use. I reckon this will be just a first experiment, as unscrewing 4 knobs with a 12mm top (with a slight offstand) is still probably going to be a ballache! The bonnet probably only weighs 500g or so.
Stuart's pip pins are lovely, but it would mean the 'pip' was just retained by the inner edge of the tube, which is probably not very thick steel. Perhaps with an insert...
Duncan's route - yes, I'd agree, too modern for me too. (And no space underneath to allow nut fixing on both sides of the tube).
I've bought some tiny M4 wellnuts and knurled knobs to try out in a conventional manner and see if they are up to the job. I will be interested to see if the rubber confers some safety against them unfastening in use. I reckon this will be just a first experiment, as unscrewing 4 knobs with a 12mm top (with a slight offstand) is still probably going to be a ballache! The bonnet probably only weighs 500g or so.