The 1918 Pope L-18 motorcycle boasted innovation and quality engineering but was Pope's last motorcycle. It had a 61-cubic-inch V-twin engine with overhead valves which were innovative for the time. See pictures and learn about the Pope L-18.
The 1970 BSA Lightning motorcycle battled faster less-expensive Japanese bikes. BSA didn't survive long afterward as the competition from Japan proved too much. See pictures and learn how the BSA Lightning dealt with its rivals.