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Discussion Starter · #1 ·
Ok so I have 1 ZR 900 .pro. Well sometime during the season I plan to do the conversion. One thing I am unsure about is the 8" wheel upgrade. What is the real purpose of it and is it needed? Another thought I have is right now my machine has the 1.375 track and I was thinking of using the ripsaw. Most of my riding is trails ,but sometimes we venture into the boondocs and the hills. Even though I will have more track length I was wondering about the scooping power of my stock track vs. the 1 1/2" ripsaw? I would hate to feel like I was giong backwards. Also should I be concerned with reclutching after the conversion?
 

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the 8 inch wheel upgrade helps with rolling resistance less angle for the track to run around. i used the entire set up off the 04 mountain cats it fits on the tracks usa rail extensions great. As far as i know the ripsaw is 1.25 lug height. my friend ran a 136 ripsaw last year and i ran the 1.5 intense track. I think his was better on the trail with better cornering side bit and mine could churn more snow and better straight line acceleration but only slightly. Off trail the 136 should be a noticable difference in floatation
 

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I also did the 121-136" conversion to my ZR, and like shuttle said the 8" wheels offer less rolling resistance.

I opted for the 1.375" lug, same as on your sled, with no studs and I love it. I personally would go with the 1.375" over the 1.25" Ripsaw but I have heard of lots of guys that really like the 1.25" Ripsaw (however, most are using studs). Now that the Ripsaw comes in 1.5" I'd be very tempted to go for that over the 1.375", especially with no studs. The only drawback I can see to the new Ripsaw is that it isn't notched, so you'll have to notch it. Both tracks are about the same price.

Clutching....not sure. I didn't mess with my clutching and it was fine. Gearing is something you might play with. I left mine stock for the first couple years but this year I'm going to gear down a hair to 23/40 (stock on the 800 is 24/39).

It's not a hard job at all. You could easily do it in a weekend if you had all the parts. Have fun!
 

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i used a ripsaw for off trail use last year. its the best for trail use, but a 1.375" cat track or a 1.25" 6 pitch would be a better choice for off trail. or you could run a 1.75" like i do!
 

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You're probably going to want to reclutch after the 136" swap, if you run mainly trails get the ripsaw and don't look back.
 

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I run a 136"x1.25"ripsaw Studded on my ZR 1160 with 1.5" Studboy powerpoints and a 144"x1.25"ripsaw with the 1.5"studboys as well on my Chopped King Kat, I run both on the trail with very little off trail. But when I go off trail, I'm gald I have the legnth, hell on the rough trails I'm glad I have the length ! also both sled have 8"wheels. Pics of both sleds are in the garage.

http://www.hardcoresledder.com/forums/inde...&CODE=12&CID=44

Pic need updating though
 

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Discussion Starter · #8 ·
Cool, thanks for the input. I think I'm gonna go with the cat track that KruzerCat runs. Looks like a good all around design.
 

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Here's my .02. Did the same job to my '01 ZR800 3 years ago. I used the 1.25" Ripsaw w/NO studs and love it. This is one of the best all around tracks. I ride about 90% trails and the rest off trail in powder (still trying to meet up with Shuttle). I was contemplating studs, but now I'm glad I tried the track without them. As for the wheels, I stayed with stock. While the 8"ers do offer less resistance, it's one of those mods that you probably won't notice the difference. Even my dealer (whom I buy my parts from) said I could get a lot more bang for my buck in other areas. Clutching will not be an issue if you're satisfied with what you have now. At least with the Ripsaw, you're not adding much weight compared to the stock 121".
 

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Discussion Starter · #10 ·
Thanks Tallcool. I do not plan on running studs. Never have. I do about 70% trail and lake then 30% powder.
 

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You won't be disappointed with the 1.375 lug. Especially if you like to go off-trail. And after you do go off-trail a few times in some good powder, you may even find yourself wanting more lug.
 
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