(138 customer reviews)


Street Throttle Cam System Builder for Harley

World’s first “build your own” throttle system!

Throttle Tube Image
Required to allow the interchanging of cams.
SKU: throttlebuild-street-harley Categories: , Tags: , ,

Custom Throttle Tube Builder for Harley

BUILD YOUR OWN Throttle Tube or Throttle Cam System with cams specific to what YOU need for your Harley! Experienced riders know that as track conditions change, so does the level of throttle control difficulty to put power to the pavement, or even dirt for adventure riders! Need a quick cam on your R7 for the next track day?? How about a control cam for that Tenere 700 when things get a bit more technical? Why not get a stock ratio cam so you can always return to that OEM feel? The G2 Custom Throttle Tube Builder allows YOU to buy as few or as many of our available cam ratios as you wish!

The G2 Custom Throttle Tube Builder for Harley offers different cam selections depending on the model. For most Harley models, the quick and stock options are circular cams, while the control, or “Tamer”, cams have a progressive shape. This “progressive” (non-circular) ratio between throttle grip rotation and power delivery can give you a huge improvement in control! As the power is rolled on, you will find it far easier to modulate traction – especially in the turns! The cam size increases, or ramps up, after ½ throttle to keep overall rotation near stock rotation. Whether your goals are faster cornering, less wheelspin, quicker response or more finesse on those technical trails, the G2 Custom Throttle Tube Builder for Harley allows YOU to choose the best cam ratios for YOUR riding and/or racing!


QUICK – for CLOSED COURSE COMPETITION competitors seeking a quicker action throttle. These throttle require less rotation and make it easier to reach full throttle while leaning left. A quicker throttle will cause the engine to accelerate at a faster rate per hand position as compared to stock. These cams are NOT FOR HIGHWAY USE. Use of these cams on highway can cause INJURY OR DEATH!

CONTROL – this gets tricky! For most riders seeking to decrease “Throttle Snatch”, or jerky characteristics of the modern fuel injected motorcycle, our 20% reduced cams (marked 400 typically) seems to work best. However, this may differ based on motorcycle power characteristics, track / road conditions and, most importantly, the rider’s level of throttle control prowess. Many riders like to also get the stock ratio and one cam in between to “fine tune” throttle control.

The Custom Throttle Tube Builder for Harley is based around the unique G2 proprietary interlock design. This allows interchangeability between the throttle tube and several cam ratio options for most models. The G2 throttle tube has Delrin self-lubricating bushings pressed into each end. These bushings eliminate aluminum-to-aluminum contact and galling which is common on many aluminum throttle tubes. Best of all, they provide a “buttery smooth” feel comparable to a ball bearing throttle (but without the ball bearing maintenance)! The tube has a knurled area allowing solid grip adhesion. Just install a high-quality Domino Racing Grip (or any other “non-lock-on” dirt bike brand) and you’re good to go!

G2 Custom Throttle Tube Builder for Harley FEATURES

  • Machined from 6061 aluminum in the USA!
  • Self-lubricating Delrin bushings at each end of tube eliminate aluminum-to-aluminum contact and provide an ultra-smooth feel.
  • Multiple cams available -quicker, stock or more control – YOU decide!
  • Fits inside the stock throttle housing to stock cables – simple installation!
  • Slide one of our Domino Racing grips (sold separately) or your grip onto the included throttle tube.
  • G2 throttle tubes work with all known aftermarket heated or non-heated grips designed for 7/8” (22mm) handlebars with right-side twist throttle
  • Installs in minutes!

138 reviews for Street Throttle Cam System Builder for Harley

  1. Earl S. (verified owner)

    Delivered promptly

  2. Sean B. (verified owner)

    Great Company to do business with. Answered my questions about the product quickly and were super nice to deal with! Highly recommend G2

  3. PAUL DUNNE (verified owner)

    I received item very promptly

  4. Jason Stewart

    Quality product

  5. troy r.

    Works as advertised and appeared to be a quality piece. Install was super easy and I still havnt had any issues with it

  6. Ryan

    Awesome product!

  7. Joseph Kennedy

    Works as described.

  8. Kevin

    Easy to install and it works very well.

  9. Anonymous

    10/10 for quality, puts the power where you want it, simple installation, great product.

  10. JOHN

    Well made product, a noticeable difference in the way the throttle reacts.
    Fit well with the new grips.

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