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Old 12-13-2012, 07:40 PM   #4
sho305
Vegas modded 420
 
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Yamaha
 
Join Date: Jun 2009
Location: West MI
Posts: 15,443
Default Re: Looking for G2 Clutch Ratio

The high gear ratio is 0.9:1 overdrive. The trans is 13:1 or so and with the overdrive 11:1 is very close to what you get (cvt+trans), it should be right for calculating speeds with different tires providing you know your rpm. For example at 5K rpm you get about 30mph with 22 inch tires, I have verified that with gps. This is a G9 which is nearly identical to a G2 except it does not have a rev limit in the ignitor (ignition). Also some tires are taller than others of the same size so it varies. The cvt can shift differently depending on belt wear. Even the distance between the clutches can affect top speed, too far and it will slow down top speed....too little and it will bog off the line.

Actual ratio in the manual: (G2A)
3.2:1~0.8:1 Primary reduction ratio
13.65 differential reduction gear (15.25 in reverse)
270.5mm center to center sheave distance
24.8mm offset
3,400 shift rpm

13.65x0.8=10.92:1 final high gear ratio
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