This is from the site Bring a Trailer (https://bringatrailer.com/) ...
This 1952 Simplex Servi-Cycle is claimed to be virtually all original excluding its tires, the seller further claiming that it starts, idles, runs, steers, rides and stops very well despite having accumulated just 10 or so miles in the past 15 years. Simple, rugged machines built in New Orleans and largely unchanged from 1935 until 1960, this one has a wonderful patina and color combination. Find it here on eBay in Reno, Nevada for $7,500 OBO.
The seller believes that the bike may be a lifelong Reno resident, claiming that their father remembers it being on display in the front window of a local bike shop where he was employed. Afterwards it’s said to have been in the Harrah Collection. The ad notes a few small dings and scratches, as well as as some light checking and a handful of other small, character-adding flaws, but overall condition looks outstanding, and we agree with the seller that these types of things only emphasize a machine’s originality.
Tires have been replaced, but are said to be exact replicas of the originals. Elsewhere, part of the Simplex-designed and built magneto’s cover has been J-B Welded to fix a crack, and the seller rightly recommends it be removed, repaired and re-polished. Despite this issue, the bike’s proprietary 130cc twin-plug, rotary valve, two-stroke single is said to be in excellent health. The drive belt has a few teeth missing, but the bike is said to accelerate and cruise well regardless.
Roughly four horsepower goes through a continuously variable transmission, and top speed should be about 40 MPH. Conceived as inexpensive and lightweight (~135 pounds) machines for young or beginner riders, Simplex’s founder Paul Treen was previously a Harley-Davidson dealer, and Milwaukee’s rejection of this concept was the impetus for production of Treen’s own design. Note the holes in the rear fender, which are believed to have been for a rack. Seat leather is original and shows some very nice weathering, but will need a few loose seems repaired with new thread.
As pointed out in the listing, these machines’ inexpensive, utilitarian nature meant that they were often ridden hard and simply tossed away at the first sign of real trouble, making even good restored examples pretty rare today. This one is probably the nicest we’ve ever seen.