Iva.. Again

[Longboarder]

Goes like this.

[Snapperpaul]

Then space up the gear lever plate with 3 drilled out nuts

[Bob Tucker]

Hey! Ive never had one of those.....

I'd better go look for one

[Guest 2b cruising]

The nuts move the fulcrum point to a further distance from the bottom of the lever.

This is the reason you must move the gearstick out of the tube by the same amount as the nuts under the plate.

Altering the fulcrum point means the top of the gearstick has less to travel to achieve the original bottom travel on the selector shaft.

Hence the quick shift.

[Guest 2b cruising]

Hey! Ive never had one of those.....

I'd better go look for one

Can't see you having a slack fit Bob.

Does this mean your stick is wobbly.

Edited October 3, 2015 by 2b cruising

[Bob Tucker]

Just had a look....it stays in the gearbox when I remove the lever.

Never noticed it before.

[Longboarder]

I did some pictures of a 'dismantled to destruction' gear lever to illustrate how to make a quick-shifter (or slightly quicker shifter). The gear lever is a lever and the object is to move the fulcrum up a little. The effect is to lengthen the bottom bit so it moves further for a given movement of the knob end. With any lever you can swap distance with effort.

First pic shows the remains of a lever with just the ball/fulcrum in original position. The ball is a friction fit on the lever. Rest the plate/ball housing/ball upright on open vice jaws and bash the top of the lever down to push the lever further through the ball. The Ball will slide up the shaft and clear the lower fat bit of the lever. Stick a C clip in the space exposed and reverse the bashing till the ball rests on the C clip. The lower part of the lever is now about 6mm longer than before.

If you just bolted it back in place on the extension it would not mesh correctly. The fork must be returned to the same relative position by spacing the mounting plate up by the same distance you have lengthened the lower end of the lever. This is easily down by cutting a spacer out of an old plastic kitchen chopping board/three nuts/bit of ply/etc.

 

Nigel