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  #1  
Old 10-28-2003, 04:49 PM
shiftMX's Avatar
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Question 18" rims

     

I like the way some bikes look with the 18" rear rims but can anyone tell me the purpose of switching from the 19" to 18" rims? Is it benificial to motocross or for trails?
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Old 10-28-2003, 04:54 PM
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Default Re: 18" rims

The 18 inch rims use the high profile tires which are better for offroad as they protect more against punctures. The 19 inch wheels were brought in a few years back because they use a stiff, low profile tire that will not flex much in the corners.
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Old 10-28-2003, 05:04 PM
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Default Re: 18" rims

uh- ditto good info Keeto

Rob
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Old 10-28-2003, 05:19 PM
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Default Re: 18" rims

can the average joe tell a difference?
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Old 10-28-2003, 05:27 PM
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Default Re: 18" rims

I'd say not I have a 19 inch tire on mine and it handled the Rocky Mountains trip with no pinched tube.
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Old 10-28-2003, 05:31 PM
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Default Re: 18" rims

Keetoman nailed it. That is EXACTLY why.

And YP, some people like the 18" better then the 19, it does offer a smoother ride and in some cases better traction. And yes you can tell the difference.

One other reason for the 19 in MX is weight savings, the 19" tire weighs less then the 18.
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Old 10-28-2003, 05:32 PM
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Default Re: 18" rims

Also plays a little part in the way the bike gear ratio is to...
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Old 10-28-2003, 05:39 PM
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Default Re: 18" rims

No, actually they are the same outside diameter Twister.

At least the ones that I have used are, it's been awhile though.
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Old 10-28-2003, 05:42 PM
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Default Re: 18" rims

Well yes if you use a 19 low pro with the same as a 18 taller tire they equal out but ive seen low pro tires for 18s also which would give you a smaller tire all together...
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Old 10-28-2003, 05:49 PM
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Default Re: 18" rims

Quote:
Originally posted by MotoMan
some people like the 18" better then the 19, it does offer a smoother ride and in some cases better traction. And yes you can tell the difference...
A lot of the hard core hill climbers at our local sand dunes will shell out the extra $$$ for the 18" rear set-up. I watched two 03 CRFs both stock (same jetting even, only difference was the 18" rear dirt tire, oil in the cases and riders) and there was definately a difference in who made it to the top first.
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Old 10-28-2003, 06:37 PM
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Default Re: 18" rims

I heard the same thing Twister, that using a 18" instead of a 19" is equal to gearing your bike, I heard that it gives you a little more low end grunt, at the expense of a little top end, can anyone comment on this?
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