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+--- Thread: 180 to 190 rear tire (/thread-1212.html)
180 to 190 rear tire - rules - 01-09-2025
Hi All
So I recently came back to the fold, bought a '19 R1250RS with a mere 12000kms (with all the goodies including factory panniers), and I'm again enjoying the heck out of it.
I do feel though that with the heaps of torque this bike forces onto the rear wheel, that it might make more sense having a 190 back there (it does tend to get a little squirmy when you yank the throttle open) and let's be honest, the 180 looks skinny on a "sport bike".
So the questions are ...
Will it fit without rubbing?
Will it negatively affect the handling?
You'd have to stick to a 55 profile, which makes it slightly higher and the speedo slightly slower, can this be corrected electronically somehow?
Insert forgotten questions here.
What do you guys think?
Thanks,
R
RE: 180 to 190 rear tire - Duckbubbles - 01-10-2025
A friend has run a 190 rear on his '16 RS without apparent problems. He ordered the tire online and doesn't know if he ordered wrong or was sent wrong, so he put it on anyway. You can postulate about the negative effects but unless you push to the limits you may never feel the difference.
Frank
RE: 180 to 190 rear tire - Ray - 01-10-2025
Old reports of some experience in this thread:
https://www.r1200rsforum.com/t1495f19-BST-Carbon-wheels-1.html#msg51644
Also, some info here, though less anecdotal data.
https://www.r1200rsforum.com/t5073f7-RS-with-on-the-rear.html#msg55369
RE: 180 to 190 rear tire - colirv - 01-11-2025
It might be different in South Africa, but here in the UK you'd be advised to declare the non-standard tyre size to your insurance company, otherwise they might refuse to meet a claim if they could pin it in any way on the tyre.
RE: 180 to 190 rear tire - rules - 01-12-2025
I very much doubt they would look any further than tread depth, unless of course you go way over or under size (something obvious).
I'll wear the Pilot Road 4 out a little more, it has a lot of life left still, before getting a Road Smart 4 again.
RE: 180 to 190 rear tire - colirv - 01-13-2025
(01-12-2025, 11:52 PM)rules Wrote: I very much doubt they would look any further than tread depth, unless of course you go way over or under size (something obvious).
In most instances I'm sure you're right. However, although the chances may be very small, you might end up crippling a child. If an insurance company is faced with paying a multi-million pound/dollar award they will find any excuse not to pay. Sure, you should be able to argue that the size of the tyre did not contribute to the accident, if indeed it didn't, but why take even the slightest risk of crippling debt for the rest of your life in order to save an entry on your insurance form and perhaps peanuts in extra premium?