Gear and coaster brake, combined within standard rear wheel hub unit, introduced under trade name "Triple-speed" by New Departure Div of General Motors Corp, Bristol, Conn; device embodies preselection of gears, synchromeshing of gears without clashing and, gear changing may be performed without removal of cyclist's hand from grip.
Combined three-speed gear and back-pedalling brake
Engineer
Engineer ; 191 , n 4972 ; p 623
1951
Aufsatz (Zeitschrift)
Englisch
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