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23-02-11, 09:59 AM
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#1 |
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Guest
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Rear Tyre - Size Advice
Just a quick question. I'm looking to replace the rear tyre soon and have found a good price on a Dunlop Roadsmart. My problem is that the tyre size is 160/60ZR18, and the current one is the usual 160/60ZR17.
Am I right in thinking that the ZR17 bit is the speed rating, rather than anything to do with the size of the tyre. If correct does it make any difference if you run a higher rated tyre to the recommended one? |
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23-02-11, 10:06 AM
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#2 |
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Member
Join Date: Apr 2006
Location: Alloa,Clackmannanshire,The Wee County
Posts: 656
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Re: Rear Tyre - Size Advice
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SV650 Sport in Black MZ saxon tour 301 Previous bikes SV650 Naked BMW 650cs Scarfer MZ RT 125 4 stroke |
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23-02-11, 10:06 AM
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#3 |
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Member
Join Date: Jul 2010
Location: Devon
Posts: 876
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Re: Rear Tyre - Size Advice
The 17 refers to the wheel diameter; you will have some serious air leakage issues if you try to fit an 18 inch tyre to a 17 inch rim!
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23-02-11, 10:09 AM
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#4 |
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Guest
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Re: Rear Tyre - Size Advice
Cheers for the replies.
I'll keep on looking, but this time with a bit more knowledge. |
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23-02-11, 01:25 PM
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#5 | |
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Member
Join Date: Feb 2009
Posts: 247
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Re: Rear Tyre - Size Advice
 I'd thought similiar. Quote:
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2002 SV650S K2 + 2005 CBR125-R (my 2009 SV650S Dark Grey K9 was stolen in Hextable 18/7/12  )
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23-02-11, 02:10 PM
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#6 |
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Noisy Git
Mega Poster
Join Date: Apr 2007
Location: Halifax/Leeds
Posts: 26,645
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Re: Rear Tyre - Size Advice
160/60ZR17
160, width of tyre in mm /60 height of profile as %age of width so 160 x 0.6 = 96mm Z speed rating R radial construction 17 = 17" rim Play about with any of those dimensions you want except for the 17" part. You can fit 180/55 if you want but it handles a bit odd. I have seen a few people caught out with cheap 18" tyres 
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Currently Ex Biker
Now rebuilding a 63' fishing trawler as a dive boat |
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23-02-11, 03:50 PM
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#7 |
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Re: Rear Tyre - Size Advice
OK, so after trying to save a few pennies on Flea-bay, I was recommended Dave Clark Motorcycles in Oxford. Popped down at lunchtime and after some good advice and a nice chat, have ordered the correct size Dunlop Roadsmart. They're gonna fit it for free, and whilst the caliper is off swap the rear pads. So all in all, I'm happy, Dave has a new customer, and Flea-bay can find some other numpty to flog their tat to.
Thanks again for the prompt advice. Last edited by johnnyfartpants; 23-02-11 at 03:50 PM. Reason: Typo |
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23-02-11, 04:33 PM
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#8 | |
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Re: Rear Tyre - Size Advice
Quote:
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