105 M.P.H. 08 Nytro rtx. What are your numbers?

[SledFreak]

Does the medium windshield really give your more top end versus the small little flyscreen I have on my 08 RTX? Father has same sled with medium shield and his sled is a couple mph faster. Is it the windshield or just difference in motor? Just wondering if anyone else has experienced this.

Swap hoods for a run and you'll see you'll be faster with the med sheild.... I run the med sheild, end of season did a swap to the stock low sheild and guess what...slower!

I thought I asked you this last year and I swore you said there was no change in mph?

maybe your right, I dont remember

I talked to a few other people and they said the same thing, that the mid windshield is good for 2-3 more mph on top end..

 

[Grimm]

seems to be a lot of peeps only getting 96mph on there nytro's thats all mine will do period and i have held it no more speed just like hitting a wall

Try adding extra idler wheels, preferably a little larger too. I think this helped my top speed out. Last year, the best I could get with my RTX was 160kph, just yesterday I managed 170.

 

[170plus]

first ride on trail this year about an hour ago,full tank of fresh gas,nice hard rr bed,held 112-113 for 1/2 mile,8900 rpm

 

[sleddingfarmer]

seems to be a lot of peeps only getting 96mph on there nytro's thats all mine will do period and i have held it no more speed just like hitting a wall

Try adding extra idler wheels, preferably a little larger too. I think this helped my top speed out. Last year, the best I could get with my RTX was 160kph, just yesterday I managed 170.

Maybe thats why I can still get 100 mph on the speedo. I figured with extros, a 136 cobra and 144 studs I would be running a little slower but I can still see 100 on hardpack snow. Maybe the 135mm wheels helped the top end. And I'm 230 pounds instead of 210 last year.

 

[lsp_racing]

125km on 600 feet
178km top
track 1''1/2 inch

 

[superschlamper]

09 xtx stock 104.4 gps

3400 miles last year

 

[skidooman383]

XTX should be faster due to angle.

Best I got was 97 on GPS at same time was 105 on Speedo.

 

[SledFreak]

XTX should be faster due to angle.

Best I got was 97 on GPS at same time was 105 on Speedo.

Wow, your speedo is off quite a bit, since most are only off by 4-5mph at most.

 

[SledFreak]

Also, note that last weekend I got out and I did 110mph on the groomed trail. -10 out and was only turning 8830RPM. I still need to work more on the clutching to get my RPM's up and add my mid windshield. I'm confident I will hit 114-115 on the speedo on the groomed trail by year end. Then, I want to try it on ice, to see what it pulls.

 

[billymx815]

SledFreak...You can hit those numbers by tweaking the clutch for sure. Have you done anything with gearing yet? Ulmers got a Stage II kit that will get it done for you.

 

[shadow44]

Also, note that last weekend I got out and I did 110mph on the groomed trail. -10 out and was only turning 8830RPM. I still need to work more on the clutching to get my RPM's up and add my mid windshield. I'm confident I will hit 114-115 on the speedo on the groomed trail by year end. Then, I want to try it on ice, to see what it pulls.

Andy, where the heck are ya hitting that speed on a trail....railbed?

 

[SledFreak]

SledFreak...You can hit those numbers by tweaking the clutch for sure. Have you done anything with gearing yet? Ulmers got a Stage II kit that will get it done for you.

No gearing yet... But from what I hear the XTX does not respond to gearing changes.

 

[ericmichael]

111 on a shorty last year geared up 2 teeth on top..before all I could see was 104-105 have yet to try it this year where as its all broken in..and kinda broken up haha.

 

[SledFreak]

Also, note that last weekend I got out and I did 110mph on the groomed trail. -10 out and was only turning 8830RPM. I still need to work more on the clutching to get my RPM's up and add my mid windshield. I'm confident I will hit 114-115 on the speedo on the groomed trail by year end. Then, I want to try it on ice, to see what it pulls.

Andy, where the heck are ya hitting that speed on a trail....railbed?

I guess you could say that... It's a road that is NOT plowed during the winter and is part of the trail system and the groomer groom's this as part of the trail. It was a little rough, more like a little wash board. The straight stretch is about 2500-3000 ft long.

 

[billymx815]

Andy,
I hadn't heard that the XTX doesn't respond well to gearing changes...Good to know. Guess I'll stick with clutch mods