Note: this machine has been withdrawn from sale and is no longer available

Added, very high resolution photos, approx 1600x1100 and around 500kb each  these should give much more detail.  click the thumbnails to view.

Possibly one of  the best survivors, this beautiful 1923, 80 cubic inch, Model K Henderson with reverse gear, painted in Royal Blue. This four cylinder has been In New Zealand from new and completely restored 10 years ago. A no expense spared ground up restoration by the countries most experienced engineers, all correct, dry stored, fastidiously cared for, this Henderson has done less than 100miles since rebuild!....

The Henderson was imported to New Zealand, new, in 1923.The original records have been lost and as New Zealand registration authorities do not keep records we are unable to discover any further information on the Henderson. The bike was last registered in New Zealand in 1977 under registration number 99DGR by Mr B Williams.

It was owned by Mr B Williams for a number of years, he registered the bike in 1977 and used it for a short while and then dismantled the engine. The bike was then sold to Mr J Williams in 1992.

The engine was reassembled, with new pistons, new rings, valves, valve guides, refurbished cylinders, main bearings and big end bearings. The gearbox and clutch were reused as they were in good order. A new exhaust was made for the bike. No cycle parts nor paintwork was altered nor painted unnecessarily and it is as bought from the previous owner. Reason for sale Unfortunately too many projects on hand.

The following spare parts are included with the bike:
Spare engine in bits, which consists of crankcases and all internal parts in serviceable condition. Crankshaft, camshaft in excellent condition. Conrods in good condition, metal bearings need to be renewed. Cylinders need refurbishing, set of valves which are serviceable, set of new pistons which need machining to suit bore sizes.
The gearbox parts seem to be all there including reverse gear.  Complete sidecar chassis with wheel and mudguard, spare battery box, toolbox. (the rusty looking parts are actually in cosmoline paper - not rust!)
 

thanks to http://www.tower.org/museum/henderson/henderson.html for the following info:

"The Henderson Motorcycle Company began in Detroit, where its motorcycles were manufactured from 1912 through 1917. Tom Henderson was President and designer William Henderson was Vice-President. Tom Henderson had previously been Vice-President of the successful Winton automobile company. In 1917 the Henderson brothers sold their company to Ignaz Schwinn, and Schwinn added the 1918 Henderson to the line-up of the excelsior V-twins made by the Excelsior Motor Manufacturing and Supply Company of Chicago. Tom  and William Henderson joined the new venture in Chicago, along with engineer Arthur Lemon. These three remained connected with the Excelsior company until 1919, at which time they left to organize the Ace motorcycle company.

Henderson motorcycles suffered like many motorcycle manufacturers in the 1930s. The world-wide depression caused the downfall of hundreds of motorcycle manufacturers internationally. In 1931 Ignaz Schwinn discontinued the production of Henderson motorcycles and spelled the end of Henderson and Excelsior motorcycle production. The 1990s saw the recreation of motorcycles with a new marque, Excelsior-Henderson"

thanks to http://www.tower.org/museum/henderson/henderson_1920_modelk.html for the following info:
"The model K Hendersons were dramatically different than their older kin the Model A's. The engine layout changed from F-head to side-valve (L-head) construction. Lubrication was changed from splash to pressure-fed oiling the chain drive was fully enclosed. Electric lighting was standard equipment on these models. Wider fenders gave them a totally different styling and the new frame that sloped in the rear allowed for a lower rider seat height. Unlike the 1911 Model A, the optional passenger seat was mounted behind the driver.

Model K Hendersons featured three-speed gearbox with a chain drive, special Excelsior Kushion forks (trailing link), and a design by Arthur O. Lemon. Because Henderson was now a part of the larger Schwinn organization, they were now marketed by Schwinn's Excelsior Motor Manufacturing and Supply Company. It is widely understood that Hendersons built after the Schwinn purchase were built in Chicago and not in Detroit like the earlier models. "