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RT195 kit - which gearbox
Posted:
Fri Jun 23, 2023 11:53 amby mark65
Hi,
looking to upgrade the SX150 gearbox on my RT195 (25 mm PHBL dellorto & BGM v4 exhaust) Few choices to think of; Italian (or early Spanish) Li150 or either the AF or Casa close ratio box.
Advice greatly appreciated on what i could expect to achieve with these choices against the SX150 gearbox.
Thanks
Re: RT195 kit - which gearbox
Posted:
Fri Jun 23, 2023 2:51 pmby hullygully
li150 with 16T drive's probs your cheaper option bud
Re: RT195 kit - which gearbox
Posted:
Fri Jun 23, 2023 4:18 pmby ULC Soulagent
Li150 15/46 fd5.2 or 16/46 fd 4.9 if u want a little more top end but loose out on bottom n midrange grunt.
Suppose it’s what you want the scoot too pull will determine what gearbox n ratio ya go with
Re: RT195 kit - which gearbox
Posted:
Sat Jun 24, 2023 5:07 amby dickie
Personally, I don't see a huge advantage in a 5 speed 'box with that set up.
A motor with a fairly wide spread of torque like yours won't really justify it.
If you mean the 4 speed close ratio box, I'd avoid the AF ones. They've had quality issues recently and can be a pig to set up, or impossible.
My personal preference is the Indian GP200 due to the short jump between 3 and 4.
The 5 speed option makes more sense if you do a very varied type of riding and could use 5th sort of like an overdrive.
Re: RT195 kit - which gearbox
Posted:
Sun Jun 25, 2023 7:17 amby Keith64
Ive ended up with GP200 Italian gearbox, 18t sprocket, 46t crown wheel for 5.1 ratio. Seems almost perfect for me as i sometimes travel 2 up which was painful on a 150 box at 4.89 ratio. I have a NOS indian gp200 box to go in next strip down which should close the gap between 3rd and 4th a little.