Glen Carbon cyclist prepares for coast-to-coast adventure Glen Carbon woman riding 4,200miles on the Trans America Trail Scott Marion Hearst Newspapers FacebookTwitterEmail 1of9 Diane Threlkeld, center, with fellow cyclists Darren Iozia and Christine Grojean.For The TelegraphShow MoreShow Less 2of9 Diane Threlkeld, right, with fellow cyclists, left to right, Dave Threlkeld, Mike McGarry, Dave Threlkeld Jr. and Charlie Threlkeld.For The TelegraphShow MoreShow Less 3of9 4of9 Diane Threlkeld, of Glen Carbon, competes in a full ironman race in Idaho.For The TelegraphShow MoreShow Less 5of9 6of9 7of9 Diane Threlkeld, middle, with fellow cyclists Scott Marshall, left, and Darren Iozia.For The TelegraphShow MoreShow Less