proper sprocket choice

Getting your blazingly fast Suzuki powerplant to perform even better!

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Mightyzod
On the street
Posts: 46
Joined: Sun Apr 29, 2012 8:31 am
Country: USA
Suzuki 2-Strokes: 11 Suzukis, Currently 74 GT750, 01 GSF 1200

proper sprocket choice

Post by Mightyzod »

Hi guys. Been a while since I got to post. That is actually a good thing, since it means I have been able to figure out most of my concerns with my L model. Currently, I am waiting on a 3 into 1 from Jemco. The owner advised me that I would not get the performance of a 3 into 3 system, but that is fine with me. I do want the bike to pull off the bottom and the middle, so I figure my choice of sprocket sizes are important. I have searched through the archives, and best I can determine, 15/43 will best meet my needs. Any thoughts on this? With stock being 15/47, this seems kind of backwards to me. I usually drop a tooth on the front or add two to the rear for a bit more bottom end grunt.
Suggestions are welcome.

MZ
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tz375
Moto GP
Posts: 6210
Joined: Mon Nov 03, 2008 10:47 am
Location: Illinois

Re: proper sprocket choice

Post by tz375 »

Not exactly. :oops:
To get it to feel more responsive low down you need to gear down. Mine runs 15:50 and it howls off the line.

If you feel that 15:47 is too revvy for your riding style you could always move to 16:47 or 15:43 but I'd suggest that you fit the pipe first and see how the bike feels. Most likely it will feel fine and maybe a little flat above 100mph, but try it and see.
pearljam724
AMA Superbike
Posts: 1681
Joined: Tue Jul 24, 2012 11:45 pm
Country: U.S.
Suzuki 2-Strokes: 75- GT 550 / 76- GT 750
Location: SW PA

Re: proper sprocket choice

Post by pearljam724 »

Sprocket gearing is a matter of individual expectations. On any modern bike I've ever owned, a -1 front sprocket fits my bill. These bikes are geared way too high, factoring a poor weight / power ratio. To me, you have to go a couple teeth beyond subtracting a tooth in the front. I added 2 teeth to my 550 rear only and I feel it's perfect for me. I went with a -1/+2 on the 750 and it's a little too early to determine if I'm going to settle with that ratio. I may resort back to just a -1 front sprocket on it. Sometimes you have to play around with the different sprocket counts. Depending where you ride and what you like. It's best to have a couple spare sprockets with different teeth counts, to test what you like better. Buy some good conditioned used sprockets with different teeth to see what you like. The GS model rear sprockets, will also fit these bikes. Being they are made of steel. Most of the used sprockets are still in good condition. The terrain where you live will dictate what is suitable for your bike too.
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