This page lists brand names beginning with the letter "I" for which we currently have only an historical precis.
For a more complete listing visit the German Index.
Ideal
There are two German motorcycles and a sidecar which use the name Ideal:
1.
The Ideal-Express was built by Pachtmann & Schitz, Dresden, Am See 32/34, in the years
1922 to 1928. Models included lightweights with 173cc two-stroke engines of their own manufacture.
Sources: Tragatsch p171; motor-lit-berlin.de
2.
Ideal fahrradmotor Winterbach bei Stuttgart built by Feinbau Maschinen-Gesellschaft M.B.H. in the 1950s.
Ideal Mopeds by Feinbau, 1950s
Source: Period literature.
Indus
The Berlin firm built motorcycles in 1924 and 1925(1) using 350cc engines designed by Gnädig and built by Kühne in Dresden. These had chain drive via a Sturmey-Archer gearbox, and did well in competition. Some had front and rear leaf-spring suspension.
They also used JAP 346cc and 496cc OHV engines, and OHC Kuchen 497cc engines.
As with so many others, the company succumbed to the devastating inflation of mid-1920s.
NB. 1. Possibly 1924-1927.
Sources: GTU Oldtimerservice, Tragatsch p174.
Inkarette
INKA-G.m.b.H. of Rude/Oldenburg manufactured (or marketed) 43cc hilfmotors.
Had a relationship with Flink. Some machines were designated Flink-Inkarette.
Belgian importer advertised the Inkarette in 1950.
Sources: cyclememory.org, et al.
Rarer German Marques