When im not riding my a3 i ride my dads bike THE UNIVERSAL HIILL STREET CRUISER! it has wobbly cranks and the stem falls out...Its also about 30 years old!
Are you riding a saracen mod bike? If so i think you find its not the gap between the stearer tube and the tyre its the weight of the forks.They weigh a lot! I would get a pair of echo lites. Tom