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Little video for those of you looking to reduce throttle travel. Guy uses Bajaj Pulsar 200 grips to reduce throttle travel by 20%....


seems simple enough...
 

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always been skeptical if these things really work that well.
As it increases the diameter and hence circumference of the throttle tube it will increase the amount of cable pull per degree of tube rotation. However the trade off will be more effort required to pull the cable in against the throttle spring unless that is changed as well.

The 390 has a 90 degree throttle turn which is a quite a long throttle - apparently chosen deliberately to make it 'easier' for new riders (less snappy).
 

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They do work and the 390 needs it in my opinion. Re-gripping from a high throttle position to brake can be dangerous. and if you don't re-grip and brake with some throttle on it obviously reduces braking performance. I've experience both of these scenarios.

The above option is good if you can find the right piece for the job. I did mine by gluing a couple bits of pvc pipe into the existing slot. The cable has to pull around these then line up into the stock slit afterwards.
 

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i'll try to mod the PVC pipe thing as per eikon ... wanted to buy 1 from ebay at USD55 ... but looking at it .. why not DIY and judge the result ... saved the USD55 to finance the Akra ...
 

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Yes. However experienced riders are better with this than the lifting off to readjust hand position.
With so little HP fine control is not really a consideration. This bike won't spin out on you if you blip the throttle. (touch wood)

But to allow a more consistent action I glued the pvc bits right at the start of the cam so the extra pull/action' is effective from when the throttle cracks open. That way it is even or linear from crack to full. Rather than normal then a sudden shorter action from mid throttle. I hope this makes sense.

Phil if you do the same as me rather do more than less. I did two shorter pieces instead on one tall one to ensure it will stay in line and slot into the stock slit afterwards.

Try shave the PVC bits so they wedge in and holds then have a play with it and adjust to suit. When you're happy, glue the bastids in and you're gold :).
 

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eikon .. care to show me some pics ...

i'm looking at these for days now till u hit me with your DIY solution :D
G2 Quick Turn Throttle Tube | MotoSport


With so little HP fine control is not really a consideration. This bike won't spin out on you if you blip the throttle. (touch wood)

But to allow a more consistent action I glued the pvc bits right at the start of the cam so the extra pull/action' is effective from when the throttle cracks open. That way it is even or linear from crack to full. Rather than normal then a sudden shorter action from mid throttle. I hope this makes sense.

Phil if you do the same as me rather do more than less. I did two shorter pieces instead on one tall one to ensure it will stay in line and slot into the stock slit afterwards.

Try shave the PVC bits so they wedge in and holds then have a play with it and adjust to suit. When you're happy, glue the bastids in and you're gold :).
 

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They do work and the 390 needs it in my opinion. Re-gripping from a high throttle position to brake can be dangerous. and if you don't re-grip and brake with some throttle on it obviously reduces braking performance. I've experience both of these scenarios.

The above option is good if you can find the right piece for the job. I did mine by gluing a couple bits of pvc pipe into the existing slot. The cable has to pull around these then line up into the stock slit afterwards.

Is there a bolt on piece available in the market just like the one on the video
That just simply clamps on to the exiting throttle assembly?

Regarding your DIY materials...what kind of PVC and did you have to bend it or you used PVC pipe plastic tubing for it and cut it up to pieces? Is there a danger by doing it in this method for the throttle to get stuck open incase your PVC plastic parts dislodge from its place?

Im really interested in this mod as the 390 really needs to lessen the rotation by a few degrees just to make it better for our wrists and overall performance...

Or do I just simply replace the whole throttle assembly with a quick throttle unit used for racing?

Any insights will be appreciated...
 

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There are aftermarket barrels that you can buy and there also one that comes with 3 cable cams so you can choose the one that suits you. Will go through my magazines, Ive seen them in there somewhere.
I havent measured the barrel diameter to match it yet so havent really pursued it, there probably isnt much that can cause the cable to get jammed but modifying anything can have an unintended effect. It is a mod that has been getting done for a loooong time but.
For me Im exploring the barrel and cam option but this is only due to some changes I am going to make anyway.
 

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So you guys find the throttle not responsive enough stock on the 390 Duke? Is the extra effort that's needed to twist the throttle very noticeable? My hand/wrist isn't going to get tired or anything, is it?
 

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So you guys find the throttle not responsive enough stock on the 390 Duke? Is the extra effort that's needed to twist the throttle very noticeable? My hand/wrist isn't going to get tired or anything, is it?
Not really; it's just a long travel throttle (90 deg instead of the more sporty 60 deg).
 

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Hi, i am a Duke 390 owner from India. Already did this mod and its well worth it. I can pop up the the front wheel a couple of inches in the first gear now, not a proper power wheelie though as I'm no expert. Still would like to get my hands on a proper QA throttle kit with a 60 degree action.
 

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So you guys find the throttle not responsive enough stock on the 390 Duke? Is the extra effort that's needed to twist the throttle very noticeable? My hand/wrist isn't going to get tired or anything, is it?
Yes..there is too much throttle twisting just to get to high rev...
degree of twist must be much less....
 
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