Fits 7/8" handlebars.
The lever with a 3/8" barrel hole is for the 4' cable. (1st image)
The levers with a 5/16" barrel hole are for the 5' cable. (2nd and 3rd image)
The locking lever allows you start the motor and idle without keeping your hand on the clutch lever.
The competition lever is longer and stronger. It is a very nice lever with great feel.
If you are handy with a grinder, the barrel of the 4' cable could be ground down to fit the other levers. Or, you could trim the 5' cable and conduit (and lose the end ferrule). Or, you could buy both cables and use the 5' cable in the 4' conduit.
CABLE NOT INCLUDED