Please help with tires for Nighthawk 750 - Chicagoland Sportbikes
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post #1 of 13 (permalink) Old 05-09-2008, 11:58 AM Thread Starter
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Please help with tires for Nighthawk 750

Hi there,

a little confused here, need some advice on tires for 750.

I browsed the internet a bit yesterday and what i found was that for example Pirelli strada was a good tire and cycle gear .com has some good deals on Diablo supersport street, but the shop i called locally said those tires can't be used on 750 for being radial :-|

Can someone please explain it :-)
and tell me about the sizes!

Thanks a lot!

Sg
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post #2 of 13 (permalink) Old 05-09-2008, 12:09 PM
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Your 750 probably came with bias ply tires, but I always thought that if you replaced both front and rear you could change to radial tires, as long as they are made in the stock tire sizes. You definitely don't want one bias ply and one radial tire on there. If you do need bias ply, Dunlop and Metzeler make sport/touring bias-ply tires that are decent.

-Mike
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post #3 of 13 (permalink) Old 05-09-2008, 12:09 PM
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Most modern bikes are equipped with radial tires.
Since the Nighthawk 750 is basically a low-tech bike, it came with bias tires. The difference is in how the belts are arranged inside the tire.
If your bike came with bias tires, replace them with bias tires.


-Mike
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post #4 of 13 (permalink) Old 05-09-2008, 12:19 PM Thread Starter
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Thanks for the replies so far.

That's not my bike. I'm asking for someone else.

Basically, he wanted different tires this time, something less "touring" and from what i could see online, other nighthawk owners have had radial tires as well, so i wanted to hear your thoughts.
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post #5 of 13 (permalink) Old 05-09-2008, 12:25 PM
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you can switch to radials, but DO NOT MIX!!!! accident will occur




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post #6 of 13 (permalink) Old 05-09-2008, 02:19 PM Thread Starter
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yeah he was gonna replace both

thanks!
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post #7 of 13 (permalink) Old 05-09-2008, 02:23 PM
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Quote:
Originally Posted by HDTony View Post
you can switch to radials, but DO NOT MIX!!!! accident will occur
Why is that?
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post #8 of 13 (permalink) Old 05-09-2008, 02:24 PM
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Keep in mind that radial tires have a different 'feel' than bias tires.

-Mike
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post #9 of 13 (permalink) Old 05-09-2008, 02:42 PM
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suh-c -

the way i understand it is that the two types of tires (radial v. bias ply) are constructed differently and thus flex differently. since the tire has much more effect on the suspension on motorcycles than on a car, it is imperative that they react similarly, especially when a motorcycle is leaned over. it could be like if you set up the front of your motorcycle to be very stiff and the back to be very soft (or vice versa) - it will cause all kinds of handling issues that can be in the best case tough to track down and in the worst case result in a crash.

easiest thing is to just buy two tires that are of the same basic construction.

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post #10 of 13 (permalink) Old 05-09-2008, 02:45 PM
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the real question is, if you have one radial tire and one bias ply, will the bike wheelie?


btw suh-c, do you know where that logo in your avatar came from?

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post #11 of 13 (permalink) Old 05-09-2008, 02:46 PM
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Quote:
Originally Posted by grim146 View Post
suh-c -

the way i understand it is that the two types of tires (radial v. bias ply) are constructed differently and thus flex differently. since the tire has much more effect on the suspension on motorcycles than on a car, it is imperative that they react similarly, especially when a motorcycle is leaned over. it could be like if you set up the front of your motorcycle to be very stiff and the back to be very soft (or vice versa) - it will cause all kinds of handling issues that can be in the best case tough to track down and in the worst case result in a crash.

easiest thing is to just buy two tires that are of the same basic construction.
gotcha thanks for the explanation, i figured it was something like that. Oh and I don't like taking chances when I only have 2 wheels under me so I wouldn't be mixing anyway. Just wanted to know why.
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post #12 of 13 (permalink) Old 05-09-2008, 03:10 PM Thread Starter
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In europe you can't even have different brand of tires on the car, if i recall right. they must all be same

that's the way to go
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post #13 of 13 (permalink) Old 05-09-2008, 04:46 PM
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Quote:
Originally Posted by grim146 View Post
suh-c -

the way i understand it is that the two types of tires (radial v. bias ply) are constructed differently and thus flex differently. since the tire has much more effect on the suspension on motorcycles than on a car, it is imperative that they react similarly, especially when a motorcycle is leaned over. it could be like if you set up the front of your motorcycle to be very stiff and the back to be very soft (or vice versa) - it will cause all kinds of handling issues that can be in the best case tough to track down and in the worst case result in a crash.

easiest thing is to just buy two tires that are of the same basic construction.
+1, well explained, you should post more.

Brian
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