From new design to old design, bigger smaller, numbers are what they are, not much stretch from old to new on these 4 tested, measured in inches with vaneer ruler, numbers are close, so 149.48 is max or 5.9in, reason it’s important to me, stretch and cam timing changing. something to learn about
Aha... I see a 'Steampunk Nitrous Rocket' dragbike is in development!

And I enhanced, printed and chucked this over the fence to my neighbour's chickens, but they weren't able to decipher them Tennessee chicken's scratchings either. They reckon yours must be different and they recommended a book I should read.
After reading about the author below I am kicking myself I did not consult them chickens earlier....what a man!

Did you know that the Appenzeller Chicken can climb trees?
Discover fun fowl facts, and get acquainted with 44 breeds, each accompanied by a description of the bird's appearance, its history and breeding, and details of its personality, egg-laying, and flying abilities.
From the spirited American Game Fowl, to the calm and docile Wyandotte, this fascinating guide will turn both young and old into a chicken enthusiast.
About the Author
Jack Byard was born in Bradford in Yorkshire where he has lived and worked all his life.
He always had a deep affection for his rural heritage and so wrote his first book,
Know Your Sheep, with a view to sharing with others the countryside that he loves.