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Who makes a 39 tooth rear sprocket?

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with 39 on the rear you would have 4 & 5th as a overdrive

i have 41's on the rear of mine, if you find 39's i would like to hear how

it works as i think mine can go slightly higher on gearing yet i think , it

has 15/41's now, not sure of my rpm's but i would still like to lower them

at 55-60 mph as mine is just 99 % street, the 1% is when i miss a corner or get ran off the road...................!

thanks

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Speeds at 7500 rpm's with 15/39 gearing and stock rear tire -

km/h mph

51 32

68 42

86 53

108 67

136 85

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Sprocket specialists make them down to a 32 (I think) for the DRZ. I have a 38 comming tomorrow for my SM. It is the aluminum one that has been hardened and lightened, so it should reduce both my rear un-sprung weight and my rotating mass (better acceleration).

Lonster

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I've had a fully treated SprocketSpecialist 39 tooth on mine for a while now. I like it better than stock for sure. And nothing looks as cool as a black sprocket and a gold chain.

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Got my 39 aluminum from SprocketSpecialists. Cruises really nice on the highway now. Putting around on city streets(35-50mph) is much more discreet now too, with a loud Yosh.

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Krause Racing (sidewinder ads in all the MX mags) made a 36,38,40 tooth rear for mine the 38 is what I have now and its much better. I am doing all the engine mods now and will try the 36 next.

Mike Bruns 2005 SM

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