The old flyer used to say to check your bottle cages and dental work.
edit;
Hah! It still does!
Course: This is the same course as always: Milton, Rock Creek, Salt Spring Valley, Hunt, Milton Roads, counter clockwise loop. A 21 mile loop of fair to bad paving, two climbs and a fast, bumpy, twisty descent. Strong wheels, thick tires and no loose water bottle holders or dentures recommended. Tighten all your bolts (including brakes, brake hoods, seat bolts and stem bolts)! Please riders, use the facilities and stay off of private property!! No gas or phones available in Milton.