The thing about the Great Mile rally is that, to participate, your bike must be the definition of inappropriate. The ride runs 1,250 miles, from the northernmost point in the British Isles to the most southerly, which means a great many machines meet that definition. So, it was classic Hondas, Moto Guzzis, BMWs, and even a 1957 Triumph Thunderbird that waited to disembark from the Castle of Mey, a 15th-century tower house on the teetering edge of Scotland. Who would be barmy enough to ride an average of 250 miles a day for five days straight in all manner of British weather? This year, it was 50 riders, all with origins as varied as their motorcycles.