Feedback - 24/50 vs 21/41 gearing (Stock Tune Only)

[lilrez]

Interesting- not sure what "international" means, but this version runs a 22/48
2019 ZR 9000 THUNDERCAT 137 iACT GREEN INTERNATIONAL
1702-491 Sprocket - 22T (15 Wide) - Assembly
2602-790 Sprocket, BW-48T(13 Wide/34 Spline)

 

[Turboflash]

International = units not sold in USA I believe.

 

[Fast]

So top speed with the 24/50 is around 113? I can run that now, stock, with my 21/41 gearing. I would imagine when tuned, they run out of gear super fast!

is that 113mph on speedo or gps

 

[number1kyster]

is that 113mph on speedo or gps

Speedo.

 

[74Nitro]

Don't know if I mentioned already that when I GPS'd 116, my speedo read 124!

 

[number1kyster]

Don't know if I mentioned already that when I GPS'd 116, my speedo read 124!

Wow. I always knew the Japan Yamaha's read really high. I though these machines were more accurate than that!

 

[Crossfire12]

Yamaha does that to speedos so they get more sales.

 

[74Nitro]

Yamaha does that to speedos so they get more sales.

Don't they all!

 

[lilrez]

Cat dont becuase they are the best haaaa

 

[putz21]

So I know I started this thread asking for feedback regarding 24/50 vs. 21/41 gearing for stock boost, but now want to get feedback whether boosting with 24/50 gears. I ended up ordering some 24/50 gears and plan to put those in. With additional boost, I've heard that you will run out of gear real fast in a wide open area. For my area, it's only on the lakes as most trails are tight twisty's in Northern Wisconsin. Anybody running 24/50 with additional boost for trails? Thoughts on how much difference from corner to corner or overall feel? I should mention I am running the Ice Storm 150 and love the track and don't plan on studding. Thanks guys.

 

[Crossfire12]

Spin, spin spin low gears without hooking up, especially on hardback w/o studs that gear pulls though I felt like I was in 1st gear for a long time like not shifting into second in my truck, 21/41 worked better for me, shift sooner this is just me,

 

[Turboflash]

IMO w no studs and adding more boost, all the more reason to gear up more. IMO, 24/50 is even too low for stock sleds. My Cat came w 24/50. When I geared it up to 21/38, it transformed the sled completely. It felt like a totally different sled and much faster even corner to corner. I marked my clutches and found out how easily it was shifted all the way up and out of gear.

 

[1nc 2000]

One thing that is not talked about much on here is lug height and gearing.
My sled in stock form with 21-41 gears would only run 109mph on the trail with the backcountry 1.75 track.
I would bet the taller lug makes the speedo closer to GPS speeds compared to a 1.25 track.
Tuned has more top end.

 

[lilrez]

Went from 2450 to 2138 this year season.
Also went from PT mod muff to Max16sm.
works good but i think id like to try 21/41 next year. Im a bigger guy and carry fuel half the time so i think this ratio wpuld be more suited .
I thi6jk this gearing also needs a different chain than 2450 and 2141 correct ?

 

[Crossfire12]

Went from 2450 to 2138 this year season.
Also went from PT mod muff to Max16sm.
works good but i think id like to try 21/41 next year. Im a bigger guy and carry fuel half the time so i think this ratio wpuld be more suited .
I thi6jk this gearing also needs a different chain than 2450 and 2141 correct ?

Yes