plastic gears and IMI?

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    I have a bunch of plastic sprockets for our Leopard and found out the hard way at Bandimere that they break on a bumpy track! What about at IMI? I assume that because the gear is much smaller this won’t be a problem?

    We have never run at IMI and it will only be the 2nd time for us with the Leopard, We have a commitment on Saturday so we will only be able to drive up Saturday night and have the limited practice on Sunday, Please can someone give me a realistic gear to start off with?

    Ben Schermerhorn what gear did you run last week and if you don’t mind me asking what was your max RPM?

    Thanks in advance Jon

    Jeff Welch

    This spring, I drove a Leopard in New York that was using plastic sprockets. We put a brand new sprocket on it, and within 4 sessions all of the teeth were completely ripped off. This track had some bumps, but overall was pretty smooth. Definately smoother than Bandi, and probably smoother than IMI as well. IMI is fairly rough the entire way around partly just because you’re at such a high speed the entire time.

    Really, after my experience of ripping all the teeth off a plastic sprocket, I’d be wary of using one at all on a TaG car, on any track. Don’t know if anyone else uses them or not, but I would recommend either Kevlar or aluminum sprockets, then you don’t have to worry about it.


    I have been using the Extron composite gears since the end of last season and have yet to rip any teeth off of a gear. Thats not to say that I haven’t cracked any of them though. They will not tolerate hitting the ground. As long as you don’t go boucing off and on the track alot they should hold up just fine.

    Ben Schermerhorn

    Hey Jon,

    We run SKM gears and they are very sturdy, and cut clean. We ran a 11/80, we kissed 15600 at the end of the straights.


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