Quick turn throttle for 2 stroke?

Who makes a quality quick turn throttle? I just bought the motion pro vortex se. Nice piece.. but the turn ratio is still the same as stock. Tired of dropping my elbow to squeeze all 30hp out my 25 year old RM125.IMG 2414 7

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AssangeMX
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3/12/2024
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Belmarsh, CA, USA
5/13/2025 12:32am

G2 ergo make a modified domino that is quick turn. 36mm carb helps also. Better pickup and shorter pull.  They still tev well

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RussB
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GB
5/13/2025 5:19am

I am in the process of 3D printing the largest throttle cam that I can fit into the stock housing, for an 06 RM125. I'm not expecting a massive difference but if I can take even 5 degrees of turn out I'll be happy.

The G2 Throttle is a 'Quick Turn' throttle, but doesn't really reduce the amount of rotation. It mainly pulls the slide up further/faster initially. So will offer some improvement. I am tempted to try one if my project isn't successful.

What you/we are really after is a 'Short Turn' throttle that rotates 10/20/30 degrees less to achieve WOT. I've searched high and low and no one makes them. There was a guy on here that did a mega job and made his own from scratch. Essentially you need a massive diameter throttle cam and then a housing to suit.

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philepe747
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Olympia, WA, USA
5/13/2025 5:38am

I think my G2 throttle actually did have a slightly larger diameter and made a very small difference in how far until WOT.  I compared stock to it back to back and I think I saw about a 10 degree difference between the two.

The Shop

Kidkawie
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ქუთაისი, GE
5/13/2025 11:13pm

Ive never had that problem on dirtbikes, street yes. Try changing your riding position and grab more of the grip. Could be how your bars and controls are setup too.

Tuplavee
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FI
5/14/2025 5:12am
RussB wrote:
I am in the process of 3D printing the largest throttle cam that I can fit into the stock housing, for an 06 RM125. I'm not...

I am in the process of 3D printing the largest throttle cam that I can fit into the stock housing, for an 06 RM125. I'm not expecting a massive difference but if I can take even 5 degrees of turn out I'll be happy.

The G2 Throttle is a 'Quick Turn' throttle, but doesn't really reduce the amount of rotation. It mainly pulls the slide up further/faster initially. So will offer some improvement. I am tempted to try one if my project isn't successful.

What you/we are really after is a 'Short Turn' throttle that rotates 10/20/30 degrees less to achieve WOT. I've searched high and low and no one makes them. There was a guy on here that did a mega job and made his own from scratch. Essentially you need a massive diameter throttle cam and then a housing to suit.

G2 Quick Turn: "Designed with a throttle pulley approximately 10% larger than stock (or more for certain models). This translates into about 10 degrees less “twist” necessary to reach wide open"

For YZ125 2022+ it claims to be 20% quicker

RussB
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GB
5/14/2025 7:55am
Tuplavee wrote:
G2 Quick Turn: "Designed with a throttle pulley approximately 10% larger than stock (or more for certain models). This translates into about 10 degrees less “twist”...

G2 Quick Turn: "Designed with a throttle pulley approximately 10% larger than stock (or more for certain models). This translates into about 10 degrees less “twist” necessary to reach wide open"

For YZ125 2022+ it claims to be 20% quicker

Many Suzuki models have extra inner clearance inside the stock throttle housing, or controller. For these models, we can offer a quicker pull by simply increasing the size of the throttle tube’s pulley. In this case, simply installing our Quick Turn Throttle Tube into your stock throttle housing works great!

Seems to be more limited options for the RM's. Their system is essentially what I'm aiming to recreate myself in 3D print. Will be a lot cheaper!

I'll report back if its a noticeable change or not

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