dr n wearing his Grizzly Century tee. The squiggles represent changes in elevation and number of hills, all 180 kilometres of them. On a road bike! While I’ve only managed to climb a few of the smaller, longer, and lower-grade hills. Experience has taught me that anything more than a 10% grade is Trouble, even if it does impress other experienced cyclists when you crest the top of Centennial Drive, wild-eyed and heart pumping, on the verge of puking. Going down, however, is white-knuckle fun.