Indian li150 gearbox
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GTFOMWSC
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i originally had an sx200 box in mine took it out as the jump was too much and kept having to go up and down between 3 and 4.If i hit it right it did go well but more often than not i had to drop down especially on an incline as it would die.As soon as i got a close ratio that all went and i can keep it in the power,think an SX box might be a bad way to go tbh but your decision.
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GTFOMWSC
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absolutely agree with you.Minority wrote: ↑Fri Oct 12, 2018 4:20 am Being able to keep in the power in 4th is more a function of final drive ratio rather than gearbox chosen, that is by varying front sprocket and crownwheel you can end up with the appropriate final drive ratio on (just about) any gearbox. What is generally more of an issue on a tuned engine is the jump between 3rd and 4th , i.e. falling out of the powerband when you make the change into 4th. In this respect the Li150 box is better than the SX200 because it has a smaller jump between 3rd and 4th. The Indian GP200 box (but not the Italian GP200) has an even smaller jump between 3rd and 4th making it even more suitable for an engine with a small powerband. You can use the excellent Excel tool created by Tony Cassidy to see the effect of different gearbox/sprocket/powerband configurations: avantone.wordpress.com
the man don't give a f@@k
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GTFOMWSC
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not really tv200 is a better box than the sx one i think i can only go on what i've used and settled with. Tbh found the sx to be a ballache but it may be it's not suitable for my super monza.I was experimenting with a few boxes and that was great until you got to go to 4th 1-3 i'd have on every one of my scoots can't fault them but going from 3 to 4 was the issue.I'd still recomend you go for a 4 speed close ratio if you're not going 5 speed tbh or as someone has said a strong indian gp200 box but your call.
the man don't give a f@@k
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Minority
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If you used a 14T front sprocket with your TV200 box it would actually have better ratios than the SX200 box. It might make the clutch work a bit harder and it's a bit small for my liking (cush drive surface has to be undercut for the chain I believe). You'd also have to sort out chain length, although a pull down adjuster should work I would think.
