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[WRT]

Scott - bling on its way as your prize. That's one half ot the question. Now we know why they DONT use twist grips on quads and jetskis, who knows why they ARE used on bikes?

[scott411]

Scott - bling on its way as your prize. That's one half ot the question. Now we know why they DONT use twist grips on quads and jetskis, who knows why they ARE used on bikes?

always has been, i know of a few guys that have gone to thumb throttles due to wrist injuries and so forth, i have ridden a couple of bikes with thumb thorttle and i prefer a twist grip,

i think it is just the best way to do it, no one has come up with a better way that everyone likes

[WRT]

Seems to me, without actually trying it, that on a race track you'd have more control of the front brake if the grip didnt twist. Would have thought it would also reduce the chance of a newbie accidentally twisting the throttle while trying to apply the brake.

I know hopping on a bike with a thumb throttle would feel wrong to begin with as its not what we are used to. But it seems funny to keep doing things the same old way if there is a more precise way of doing things. I guess the only way to find out would be to take a race bike and convert it, give the racer a day to adapt and see what happens.

[avgas]

After using both, (and thumbshifters on all my mtbs) i think that each has its own purpose.
I couldnt stand a thumb throttle on the FZ because its a simple mechanics thing - my little thumb could not hold the exact same position (for say 100kph) for a prolonged time (say 3 hours) - anyone had txt cramp before?. My wrist does this task fine.
But in saying that you never want to hold the throttle in the same position on a quad, and likewise you want a quick way to go to full throttle on it (especially on farm quads). Also if you think about it - going through say some nice thicket which way is any throttle going to get pulled? back? correct - so the last thing you want is a nice wheel stand, and you fall off in the middle of a blackberry vine. So this is why farm quads have nice little thumb shifters.
Well thats my theory - I've had time on both vehicles to consider both options.
But now my question to you is : Why dont 2 stroke sportbikes have thumb shifters?