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Author Topic: 150mm front tire on a 2013 RK?  (Read 918 times)

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Scott7d

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150mm front tire on a 2013 RK?
« on: May 02, 2018, 09:17:50 AM »

I have been really liking the look of these fat front tire bikes. Mainly how it fills in the gap between the tire and fender without having to get a wrapped fender. I like the stock/classic style better than wrapped.

I wasn't wanting to go as extreme as the 180mm kit, so my question was would I need a new front wheel in order to go to 150mm on the front? Any fender clearance issues? Stock front on my bike was 130mm. I feel dumb asking but I am not mechanical or knowledgeable in this area what-so-ever. Even if a 150mm will squeeze in, I don't want to do anything that would make the ride unsafe. I'd be open to a new front wheel if needed.

Thank you!
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Scott Matlock
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grc

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Re: 150mm front tire on a 2013 RK?
« Reply #1 on: May 02, 2018, 04:45:16 PM »


Your stock front tire is a 130/60 B 19 61H, and the rim is 3.50" X 19".  You are going to have a problem finding larger tires in 19" that would work on that narrow front rim.  Part of your issue is the low aspect ratio of the stock tire, which means the sidewall height is only 60% of the width of the tire.  If you could find a 120/80 or 120/90 B 19 in the correct load rating you would give up 10mm in width but gain sidewall height which would close up some of that gap. 

Have you looked into just lowering your stock fender?  That would be easier and less expensive than investing in a new wheel of a more common diameter to allow you to find more tire choices.  I remember some people talking about doing this several years back.

Jerry
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Jerry - 2005 Cherry SEEG  -  Member # 1155

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Scott7d

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Re: 150mm front tire on a 2013 RK?
« Reply #2 on: May 03, 2018, 07:57:16 AM »

Thank you for taking the time to explain that. I figured I wouldn't get something for nothing :)

 I will look into that fender project, I didn't think about that.

Thanks again!
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Scott Matlock
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