Taken from that blog I posted, a bit more about their camping kit and the bike construction:
“The Corps is equipped with Spaulding military bicycles which have been especially made for the trip. The rims are of steel, the front wheels have 40 tandem spokes and the side forks and crown are extra heavy. The bicycles are all supplied with gear cases, luggage carriers, brakes and frame cases and weigh about 32 pounds (the heavy tires increase their weight considerably).
Particular attention has been given the subject of tires and the wheels are furnished with eight different kinds of so-called non-puncturable tires, several pair having been especially made for the expedition. Some of these tires weigh as much as six pounds per pair. The cooking utensils consist of three telescopic frame cases made of light sheet iron, and two tin coffee pots. By means of thumbscrews the metallic cases are secured in the diamond of the bicycles and are used as ration carriers during the day; when camp is made the rations are taken out, and each case being made of two seperate parts we have six cooking vessels. The coffee pots are cylindrical in shape, measuring eighteen inches in length and ten inches in diameter. They are strapped to the handle bars on the front of the bicycle and a blanket roll is carried in each.
FRAME – Diamond, standard height 23 inches, front tubes 1 1/8 inch, rear tubes 3/4 inch, swaged and tapered at connections. All connections, except one, steel thimbles. Tubular construction throughout.
FRONT FORK – Tubular throughout. Side forks of large section, reinforced both ends. No forgings.
BEARINGS- Tool steel cut from bar, tempered, ground and polished. Removable ball races throughout.
TIRES – 28 inches by 1 5/8 inches. (See Options)
SPOKES – Straight, tangent, swaged and nickeled.
CRANKS – 6 3/4 inches. Round, spring steel, detachable.
PEDALS – Spalding rat-trap. Dust proof.
HANDLE BARS – Steel tubing of large section. Cork grips.
SADDLE – Sager, with “T” post. [I believe Lt. Moss and riders used a Christy Anatomical saddle
GEAR – 68 inches–17 teeth by 7 teeth
FITTINGS – Tool Bag, with tools and repair kit.
WEIGHT – With wood rims and rat-trap pedals, without brake, 23 pounds.