Speedometer Radical

Eric27
They have the rubber cups make sure they are tight. Also cable free with no kinks. But they all vibrate a lot you just learn to live with it. You usually find when the bike is riding it smooths out a little.
Regards
Joe.

 

You might try a dab of graphite to lube it up.

 

As stated above check the run of the cable is smooth ie no tight bends. failing that try putting an old bit of inner cable on a battery drill and run it. that will tell you if the speedo itself is knackered.

 

From memory they changed from Smith's Speedos to Veglia at some point( I think).
There's a reason we all used to refer to the latter as 'vaguelier'.