21-06-2020, 07:33 AM
The comments about spanner length very apt. Tendency now is to use a ratchet set with one length for all. Should be gripped corrsponding the appropriate spanner.
Many now have no experience of bicycles, old bomb cars etc so have built up no feel.
The bendy bar ones are perfectly adequate and calibration can be checked with weights.
Anyone who has tinkered with moderns gets a whole wrong impression of tensions. Everything is done up absurdly tight.
There is a huge difference between the mild steel of everyday hardware bolts, hardware HT and equivalent, and the fancy grades beyond up to the more exotic Allen head setscrews. I doubtif many original parts much exceeded hardware ht grade, or need to.
It is helpful to read up on torsion wrenches and use of as the variables (oil, grease, washers etc ) are huge.
By practising on scrap in the vice you can calibrate yourself and spanners, and learn the limits of various grade fasteners.
Torsion wrenches are helpful in awkward positions when hard to judge otherwise.
Many now have no experience of bicycles, old bomb cars etc so have built up no feel.
The bendy bar ones are perfectly adequate and calibration can be checked with weights.
Anyone who has tinkered with moderns gets a whole wrong impression of tensions. Everything is done up absurdly tight.
There is a huge difference between the mild steel of everyday hardware bolts, hardware HT and equivalent, and the fancy grades beyond up to the more exotic Allen head setscrews. I doubtif many original parts much exceeded hardware ht grade, or need to.
It is helpful to read up on torsion wrenches and use of as the variables (oil, grease, washers etc ) are huge.
By practising on scrap in the vice you can calibrate yourself and spanners, and learn the limits of various grade fasteners.
Torsion wrenches are helpful in awkward positions when hard to judge otherwise.