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Old 10-06-2008, 10:12 PM   #1 (permalink)
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Z50r 4x8 or 3.5x8, with stock power.

I have a 79 Z50r and i want to run k75's or kings 903's and i don't know which is better and what size to get, if the bigger size will bogg down the stock motor. I can find K75's but not the 903's 4x8 (what i really want). Where can they be found. (the kings). Thanks. And if you have a Z with those tires can you post pic's of it.
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Old 10-06-2008, 10:46 PM   #2 (permalink)
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Re: Z50r 4x8 or 3.5x8, with stock power.

From what I know, the Kings tires are discontinued. When I had the 4.00 Kings on one of my stock Z50R's, it weighted it down a bit, but didn't rob the power too bad.

Here are the 4.00 Kings on my 79' & 84' Z50R's.



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Old 10-06-2008, 11:00 PM   #3 (permalink)
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Re: Z50r 4x8 or 3.5x8, with stock power.

thanks, yea i'm building my 79' to be like yours, the cut down rear fender is a great idea, beautifullll bike ive been admiring it for weeks, i ordered the 75cc marked 49cc big bore today, so i guess i'll get the K75's?
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