2. 1949 E90 AJS Porcupine – $7 Million

The 1949 E90 AJS Porcupine is ranked second.
The bike costs $7 million and you will need to take a serious look at your bike to get that amount of money.
There were only four Porcupines ever produced. Les Graham won the 1949 world championship on one of these Porcupines. It’s also easy to see why the price is so high.