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Discussion Starter · #1 ·
About to order a set of Marchesini Wheels for my 07 SMR.

I was wondering what would be best for my KTM.

Rear
4.50x17
5.00x17
5.40x17

Any help would be much appreciated!
 

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I'd go with the 5.0" if it was my bike...which is what I'm currently running. You should have plenty of swingarm to tire clearance and the tire profile with a 5" rim and a 160 tire is spot on. There's my two cents I guess!
 

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i have a 5.5. it rubs a little on the chain and is a pain in the ass, but imo it is well worth it. more ruber on the ground the beter. but if your going to be just cruisen i would go with a 5 inch.
 

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I run a 5.0 on my SMR cause that is what it came with, the newer DUNLOP Sumo spec 170 fits right on has not issues with rubbing.
 

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5" here with a 160 Pilot Power on an 07 525 EXC
I had problems with the tire hitting the chain. In the end I switched to a non o-ring chain and shaved the edge of the tire a little.... No more chain rub.
 

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Discussion Starter · #8 ·
Awesome!!

Thanks for the replies guys! Much appreciated!
 

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i have a 5in on my 450smr and i personally think its too wide. i have a 160 conti road attack on there and i have clearance issues. only problem is that when i get a smaller wheel (4.25) the 160 will ride different. my ducati has a 4.5 and i use the same exact tire on the ktm and the ktm tire looks to have a better profile, where the duc looks like its too narrow. when i was using the stock 170 slick, the chain would hit the wheel really bad, and chewed up the whole way around, but with the 160 conti i have no issues with it hitting the wheel but i do have a nice little "X" pattern all the way around the tire.
 

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I would think a 5 inch rim could handle a 170 tire no? I run a 160 on my 4.25 inch marchesini, and a 160 on a 4.5inch excel.
 

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it will depend on the tire itself. my 160 conti road attack barely fits. i had to have the tire a little bit off straight to keep it from rubbing the chain constantly. in all honesty, i probably moved the tire over 2-3 mm where it would have hit the chain.

but every tire is a little different. the 170 slick i pulled off is narrower than the 160 i replaced it with. i plan on keeping it a 160 because now i only have to remember one rear tire size for both my bikes.

edit: i just read your post again and i dont think its a problem with the size of the rim trying to run a 170 tire, but rather a clearance issue between the tire and the chain.
 

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Discussion Starter · #12 ·
I hope my rims dont hit the chain....lol


It has 5.00 on there right now soo i dont think there would be much of a differance.
 

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if you have a 5in rim on there now and its not hitting that rim you should be fine. i honestly dont think the chain will hit the rim anymore now that i have the wider tire on there. the old tire i had was the stock 170 slick and it is a good bit narrower than the 160 conti thats on there now. the chain does hit the tire just a bit, enough to put a "X" pattern on the tire in 150ish miles, but it hasnt hit the rim anymore that i have noticed.
 
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