chris plant said:hi jean,that looks like the slickshift device on pre unit triumphs?
Jeandr said:it is indeed a Slickshift and from what I was told it was only used one year. For some unknown reason, Triumph discontinued this on all its bikes.
Jeandr said:I was told by my friend it was only available in 1956, but his memory may be going so...
1958
"Slick Shift" gearbox introduced for 500 and 650 models, offers semi-automatic transmission, but motorcyclists dislike it and many were retrofitted with traditional shifters.
1962
The Thunderbird loses its "Slickshift" transmission and gets comprehensive redesign including unit construction.
In 1958, the unpopular and shortlived slickshift gearbox, which linked the movement of the gear lever to the clutch release mechanism, was introduced (and was discontinued when the unit construction models appeared).
gtsun said:Do some modern race bikes have something like this? I was watching a race recently & the camera was showing good views of the riders hands and he was deffinately shifting without the clutch.