Here you go Tater,
By the way, the administration and moderators would like you to zero in your words on your titles to pertinent to the thread. Like you should have put the words Bike O Matic in the title so if someone does a search for it later, it will come up on your thread. get it?
Anyway, this is your Bike-O-Matic;
The simplest appears to be a one-pound mechanical device that can be attached to most multi-speed bikes. Biko-O-Matic, a company based in Eagleville, Pa., developed an automatic gear shifter that uses a rear derailleur. The bike's shifting cable is connected to a cam arm in the transmmission. When a bicyclist pedals harder, the added chain tension forces the arm to shift through the rear gears. A hydraulic valve eases the transitions.
The devices are manufactured by the Hardware & Industrial Tool Company of Delanco, N.J. The product was invented by Gilmore Chappell, a mechanical engineer from Philadelphia who was inspired by bicycles in the Netherlands, where he used to live.
Bike-O-Matic prices tend to vary from $39 to $55 in sporting goods stores. The unit has a five-year warranty; the company says it can be installed within ''minutes. '' For information, call (800) 327-6010.
Doc