gearing

[Srxspec]

24/50 according to the magazines is used on all models of Yamaha. There's no "official" specs out yet from Yamaha.

RTX/LTX is 9 tooth 2.86 pitch drivers which gives you about 101 mph top speed @ 1:1 clutch ratio.

XTX is 8 tooth 3.0 pitch drivers which gives you about 95 mph top speed @ 1:1 clutch ratio.

 

[09nytro]

Thank you !

 

[Nytro40th]

thanks

 

[yukon yamaha]

hmmm big gears larger oval maybe less rolling resistance? and still a 2.08 ratio with large drivers and 8" wheels this could be an awesome set up!

 

[09nytro]

Yes it could , it's right there were I like my ratio at

 

[fxnytroxtx]

For the 8" wheels would need an offset axle or just have the wheels hang lower then the sliders?

 

[yukon yamaha]

not sure, I just phoned up OFT and ordered a 3 wheel inside rail kit

 

[fxnytroxtx]

not sure, I just phoned up OFT and ordered a 3 wheel inside rail kit

if there won't be a 4wheel kit I'm going get a 3wheel kit, I just can't trust 2 wheels, plus if the rear axle is the same as last years 800rr it will be a royal pain in the butt to unscrew, my hand where bleeding trying to adjust the track on it. I really don't like the look of the wheels being inside.

 

[cannondale27]

13 RR is way different. 14 RR is same as other ProCrosses and our Vipers with a wimpy TriHub that no Racer in thier right mind would ever use.

 

[Nytro40th]

Be aware that the short track 128 137 has a stock wheel of 7.125 and can be upgraded to a 7.5. XTX has a 8 inch wheel size OFT does not have a 7.5 option at this point, but I am sure they will, fingers crossed since my big nutz kit has no wheels.

 

[rxwhopper]

Anyone know what angle helix it has

 

[Srxspec]

Same as a FX Nytro.

 

[09nytro]

Be aware that the short track 128 137 has a stock wheel of 7.125 and can be upgraded to a 7.5. XTX has a 8 inch wheel size OFT does not have a 7.5 option at this point, but I am sure they will, fingers crossed since my big nutz kit has no wheels.

J&T products has a kit with 7.12 or you can upgrade to 7.5 looks like a very nice kit to ( two on inside and two on outside )

 

[RTX Meirda]

Are these gears interchangable with the old Yamaha gears or are we into something totally different?

 

[YamahaTim]

I'm not sure what the gears are, but with the turbo on it I was told you run out of gear around 108 mph on gps. And I ordered a 4 wheel kit and the wheels on the LTX and XTX are 8.4 and for the RTX are 7.5.