G2 Throttle Cam System

(38 customer reviews)


Adjust control for changing track or trail conditions. Included are 3 cams for different terrain.


* Add the Jimmy Twister?

The Jimmy Twister is the ultimate in smooth throttle action.


The Throttle Cam System allows you to fine tune hand movement/rotation to what happens at the carburetor/throttle body.  Why would you want to change this ratio?  Imagine the pointer on your computer had only one speed with no adjustment.  Chances are it would be annoyingly slow or so fast you would over shoot everything you want to click!  At G2 Ergonomics, we wondered why one throttle ratio is expected to work for every rider!  Whether your a beginner, an expert, riding a 250 2 stroke or a 450, most throttle ratios are basically same!  It’s really pretty crazy when you think about it!  In fact, eight time National Enduro Champ Mike Lafferty constantly changed his G2 cams depending on terrain and average speeds!

The system includes a “stock” ratio cam and two progressive cams that incorporate a non-linear ratio between hand throttle rotation and carburetor or throttle body opening.  The “pulley”, or as we call it, “cam” pulls the throttle cable as the rider rotates the grip/tube.  By altering the conventional, circular shaped cam, a vast improvement in control is achieved.  For those who want something quicker, check out our Quick Turn Throttle!

The Throttle Cam System has cam options with reduced radius for the first ½ of throttle rotation, which requires a slightly farther turn to achieve the same carburetor or throttle body opening position as a stock throttle.  This slightly longer pull makes a HUGE difference in rider control as the power is rolled on.  The system comes with a “100CAM” – same as stock, “200CAM” – starts out 10% smaller than stock and “400CAM” – starts out 20% smaller than stock.  The radius of the 200CAM and 400CAM increases or “ramps up” to stock size at  ½ throttle to keep overall rotation required to reach full throttle at or near stock rotation.

G2 Key Points:   

  • 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
  • Alternate cams to fine tune control sold separately
  • Fits inside the stock throttle housing to stock cables
  • Slide one of our Domino grips (sold separately) or your grip unto the included Throttle Tube
  • Removable end cap for simple handguard installation
  • Installs in minutes!

Additional information

Weight 0.28125 lbs
Dimensions 1 × 1 × 1 cm

38 reviews for G2 Throttle Cam System

  1. Todd

    I bought a 2008 KTM 450 XC-F, and while I love the power and torque, it was almost too much for tighter trails and slippery situations. But in Arizona, you have to have the power because there is also so much sand riding. The 400 cam proved to be the perfect complement for that bike, and it didn’t take anything away from my ability to take the bike to the track and ride motocross where the traction IS good, either. I’ll have one of these on every carbureted bike I own now, no kidding.

  2. Dirty Dave

    I recently installed a G2 throttle tube and cam on my ’00 Husky 610TE. I love my big yellow tractor but often in tight trail situations the power is(was) so abrupt that I found myself blazing new trails through the underbrush or testing the brush guards against trees! I decided to do something about it since I’m not getting any younger but the bike is as snappy as ever. I did some research and decided to call G2. The person answering the phone was named Sam. He listened to my tales of woe and suggested a tube and cam combo that should help me out. They soon came in the mail and I installed them on a Saturday night. It went together nicely but I found the throttle stuck solid at about 3/4 turn. I took the throttle housing apart to find the cam/cable was binding on the cover. I emailed G2 on a Sunday describing my situation and sent pics of the location of the binding. I expected a reply during the next business day/week but the reply came almost instantly from Sam’s Blackberry. He explaind the the throttle housing on my bike must be the model KTM had used on their 65SX and looked identical to mine just more compact. He requested my mailing address and promptly sent 2 different cams to fit the smaller housing, a new full sized housing and a new cam with even slower pull rate. He said to use what ever combo suited my needs and send the rest back with G2 paying postage both directions. That, my friends, is the true definition of customer service. Now that the bike is a lot calmer in the tight stuff I’ll need to blame something else for my consistently blowing through the corners and tapping tree trunks.Other companies make similar products but you’d be hard pressed to get such personal service as I did at G2.

  3. JD Beach

    I have been running the G2 throttles since 2006. I love them. I have them on my 450s now that I run in the AMA Pro series. I’ve started running the hand guards this year and they have worked really well.

  4. Forrest

    This cam system is the best. It has made riding my two older two stoke 250’s much more enjoyable (at 42 I can now ride much longer because I am not as tired from holding on for dear life all the time, now I can choose when to be balls out). It also helps the bikes become much more adaptable to changing conditions and riding styles. They are well worth the price.

  5. Neil

    The best there is!!!! i like that there is different setting that you could use! i love that i could be running the hard setting and change it before the race to soft if it rained that night! great buy for the money!!!

  6. Drew Mitchell

    Works as advertised. I bought the system for my Gasser 300. Installation was a snap and I went with the slowest cam first just to see. I ended up working my way back to the medium one but I will probably end up using the slow one for muddy days or extremely technical riding. Fit and finish is top notch.

  7. Joseph

    Ordered the G2 throttle system for my fuel injected KTM 350, mainly because of the removable end cap as I was installing new handguards, and wanted a clean look with open ended throttle tube and grips. I was impressed when I installed the 200 and 400 cams, as they took all the jerkiness out the initial throttle opening, and made for a very noticably smooth transition from idle-up. Quality machined aluminum piece.

  8. Andrew

    I recently bought the G2 throttle cam kit for use on my 2014 ktm exc 300. Firstly, I was impressed with the speed of shipping to the UK, and when I opened up the kit I was really pleased with the quality of the production – the cams are a good fit and the knurling on the throttle tube mean that you don’t really need to lockwire your grip. Fitting the kit was easy, and the operation of the throttle was smooth – the derlin inserts certainly do the job. The operation of the throttle following fitment is great; it makes the bike far easier to control, and that is why I ordered it in the first place – firmly recommended for technical winter conditions.

  9. Rick

    Last year I bought a 2008 KTM 990 SM. It performed great but I missed some accuracy in my throttle control midcorner. It tended to overshoot in the corners with the smallest amount of throttle. To fix this I bought the G2 throttle cam. And I have to say, it worked like a charm. Fitting the kit was easy and it fits great. The throttle is much more dosable and the bike is a lot less nervous in corners but it still keeps all of its horsepower. I recommend this big time.

  10. Nick Armstrong

    I just recently started using the G2 throttle on my Honda dirt tracker and it works awesome. Now I will be putting them on the rest of my bikes from here on out.

  11. Sam

    Super high quality, with a tight fit on the cam to throttle tube. Easy to install, and the bushings help for smooth action for sure. I thought I wanted the 200 cam, but so far I have just been running the stock ratio cam. Even though I am not currently using the modified cams, it is great to have the option, and they are really easy to swap.

  12. gordon

    The 200 cam works great on 2014 xcf 350. It is a lot smoother off idle.

  13. BOB HO

    a great product using it on my 2015 300exc lets me stay out of trouble in the tight stuff
    will try one on my 500exc

  14. Rob

    Great to improve throttle control and easy to install. Put on one both my KTM 300 XC and Husky TE250.

  15. Chris McDougal

    Just put the tamer on my 2015 KX450F flat tracker, it works great for short tracks, really helps the bike hook up coming out of the turns. Can’t wait to try it on a bigger track. Will definitely be getting this for all my other bikes.

  16. Loris

    great part and great support for the purchase , plus fast shipment = great company

  17. Matt

    Fits really well. Finish is very good. The cams are a tight fit, no chance they will be going anywhere. I’m using the 400 which is a 20% reduced throttle up to half throttle. It really helps for slow speed tricky riding where stock was too twitchy. Was very impressed, so I went and bought a quick action throttle for my track bike as well.

  18. Jacob

    Great product! Did exactly as I was hoping it would do! Great fit, great finish! And fast shipping with great customer support to back it all up.

  19. Michael

    Put on a ktm525, its perfect and makes tight trail riding much easier. Worth the money!

  20. Air Boss

    Great product and fast shipping. Easy to install and boy did it make a difference in my KTM 500 EXC! Before I replaced the stock throttle cam the bike was just too touchy on throttle. Reaching for the front brake could launch me instantly. With the G2 throttle cam, there’s no longer an issue, but I still have full throttle when I want it with the same amount of twist as before. What a great product! It provides far superior control when you want a little throttle, but grab a handful of throttle and it feels just like stock.

  21. Walt

    The G2 throttle cam system worked exactly as advertised and made my KTM 250 XC much easier to control for single track use! It will be on all of my bikes from here on!

  22. gadgeteer

    I installed the G2 throttle cam system on a 2 stroke 250. It appears to be a high quality piece of hardware and the cams fits nice and tight on the tube. I do a lot of slow technical riding so I wanted better control at low throttle openings. I installed the 200 cam first, then the 400 to compare total tube rotation to fully open. The 200 cam rotates about 1mm more than stock and the 400 cam was about 3mm (measured at the outer diameter of the inner grip). I left the 400 cam on and have risen with it for three days. It seems to give better control as desired with no negative side effects. At this point I have not intention to install the 200 or standard cams. If I was purchasing again I would buy the throttle tamer instead because it only comes with the 400 cam.

  23. Richard Cherrybomb

    The throttle tamer did exactly what it said it would do. It gave me less lurch and a more tractable power band. It is absolutely fantastic for technical single track riding. I also added a less tension throttle spring. I could not use a Jimmy twister because I use Brush guards.
    G2’s shipping was fast and service was outstanding. I received my package in 2 days and was notified with the shipping information. Not the print the label and wait forever for the seller to actually send it.

  24. Cliff

    Throttle tamer with 400 cam on 11 Ktm450sxf. Ride Mx just for fun. Absolutely the best upgrade I’ve bought besides suspension. I find jumping way easier to judge, like I’m on my 250f. So for slower heavier riders that need a 450. This is a must have!!!!!

  25. Wolfgang

    The throttle tamer gives me more control on my KTM500EXC. It makes it easier to work on my technical skills as the engine responds less aggressive. At higher speed in heavey terrain the risk of accidential acceleration is banned. Easy to mount, good quality – perfect product!

  26. Steve Meredith

    I have a CM GP450 which has low speed shunt issues. The throttle tamer has made this problem more manageable and the bike is easier to use on technical stuff. I used one previously on my WR250R and it made the bike much more manageable in the Colorado Rockies on the high passes especially sand and rocks. Well worth the money, easy to fit and excellent quality. Attension to the cable adjustment fine tunes it.

  27. Dan McPherson

    This came highly recommended for my 2017 Beta RRS 500. My friends were right, this made the bike so easy to control yet I can still rip in the opens and straights. Great upgrade and every bit worth the money I spent on it.

  28. Peter M

    The Beta 300RR was a big step up in power for me and I found the power can in too sharply when doing slippery technical and rocky sections. The rear wheel kept on spinning out. Fitting the throttle cam has allowed me to introduce the power in a more controlled way but still allowing the full power when on the flat or hill climbs – Just what I need to fully enjoy the bike

  29. ltyburski87

    Was highly recommended per Gas Gas riders. Wasn’t disappointed. Says works on 99-16 ec300 models and it works flawlessly on my 2017 GG ec300! Haven’t tried the 400 cam yet have been using the middle one and it works great. No more whiskey throttle through tough snotty single track that I ride. Definitely will be picking one up for my KDX soon!

  30. Jarno Martti

    Great for 2stroke!

  31. Hart Victor

    Had one of these on my 2016 TE300 and it was super. Besides the beautiful machining work, these made riding harder, easier and let me go longer. Recently purchase another for my 2018 300XC and equally as impressed, although I am not sure if the new plastic cams are better than the previous metal, but we will find out!

    • G2 Ergonomics

      Hi Hart, thanks for your feedback! The cams for newer KTM/Husky models are actually machined from Delrin. We had to switch to a more “slippery” material, as our 6061 machined aluminum cams were galling the inside of the soft new silver KTM/Husky throttle housings. If you have any issues, please let us know! Thanks! Gary

  32. Jared

    This is a must have for any bike you own. Wether you have an old bike and you are wanting to crispen up that throttle like brand new or even on a new bike to get that better than new feel. Great people over at G2 incredibly fast shipping great support. Don’t let the price scare you! Quality product from quality people

  33. Matt

    Great product. Great quality. Does exactly as advertised.

  34. Ryan

    Installed on 2010 Yz 450 and it made the bike much more predictable with the 400 cam installed. The low end punch was reduced and throttle overall control increased. I would buy again/recommend to a friend.

  35. Steve

    I purchased this product for my KLX450. Made a huge difference to throttle response at slow speed. Great product does exactly what it says in the video. High quality and would not hesitate to recommended this to any of my friends.

  36. Mark

    I bought the full kit for my ’17 KX250f in the hope of turning the moto bike into something fun to ride in the woods, and man did it deliver! Took the highly reactive initial hit and made it capable of hooking up in the Pacific NW slime! The 400 cam is THE one to use for wet stuff, 200 is a blast in drier conditions, and I still have std for the track. Perfect tuning for just a few bucks!! Thanks G2.
    Sweet Home, OR

  37. T.E.

    I got the throttle cam kit for my 2019 CRF450L. It has a touchy stock throttle and is hard to modulate smoothly on rocky trails. The 200 cam that comes with this kit was perfect for me. It has smoothed out initial throttle response and maintained the snappy characteristic I like through the rest of the range. The machining work on this piece is excellent. I had to trim my throttle tube to fit on the bar. It took just a few minutes with a dremel.

    • G2 Ergonomics

      Thanks for the review! We are concerned why the tube needed to be trimmed. No modification should be necessary. Would you please call us at 815-778-0468 and ask for Cody? We would like to learn more. Thanks!

  38. Steve271

    Got the throttle cam kit for my KTM exc500. I fitted the 0.50 and used it on the ice. It was perfect- exactly what I was looking for- I was able to smoothly modulate throttle in the turn then really launch it through the straights. Can’t wait to try the 400 cam in the woods.
    Will be ordering one for my FS450 too.
    Great products guys- many thanks

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