Grimsley Graham marked his bike route design on a Rogers street map, using a yellow high-lighter.  The image linked below was made from a 300-dpi scan of the area covered. The attachment is a compressed jpg of the whole thing.  

At screen resolution, the image is about 10.5 inches to the section/mile. In other words, it is zoomed to approximately 400%. According to a notation, the total length is 12.2 miles. (Overall east-west width is about 3 sections.)

Here's the course as read from the map. Segment lengths can be scaled and added if desired.

Start 1st & W. Cherry (near city hall)
W to 5th St.
S to Oak
E to 4th
S to Olrich
W to 13th
then a loop (clockwise:)
S to Price Ln 
W to Dixieland
WSW via Blossom Way Trail to 26th
N to Seminole
W to Osage
N to W Dogwood
E to 28th
N to Oak
E to 13th
S to Olrich, completing the loop
Back to beginning???

Click here to view or download the map.
Warning: the file is 688K.