Most cars have automatic transmissions. Why not your bicycle? This is a
completely automatic 4-speed shifting system. Shimano made the
Auto-D Inter-4 system for a short time before discontinuing it
and beginning production of the current, lower-quality, 3-speed
system. We have eight of the Inter-4 systems, brand-new, in the
box, with all necessary parts, hardware, battery, and
instructions. These systems also include Shimano’s hub-mounted
roller brake, which you can use with virtually any standard
brake lever. All you need to do in order to use the system is
have a shop build a wheel around the hub and install the system
on your bike! Once installed, all you have to do is jump on your
bike, turn the system on, and ride - the computerized system
will select the appropriate gear for you based on your speed. If
you wish, you can select an "aggressive" shifting mode, which
shifts at different speed levels, or you can set it to manual
and have electronic push-button shifting.
We have not heard about or seen any other remaining new Auto-D
Inter-4 systems anywhere. To our knowledge we have the last few
new ones that remain on the market - once these are gone, there
are no others! If you have questions about the system or would
like to order one, please
contact us.