www.boxertrix.com

Anyone run a 190 55 rear? Any clearance issues?
I was thinking about getting one next time I change.
Only reason I ask is I already have one fitted to my TLR and the hugger didn't like it.
The R1200S has a nice Carbon hugger which I wouldn't want to take off or mess about with.

If you have the 6" rim then you can run the 190 55, the hugger should be the correct size to fit whichever wheel size is fitted to your bike, if you have the 5.5" rim then the 180 is the correct tyre. Your picture shows a fair bit of clearance, the size is stamped inside the studs.

Not all 55 aspect ratio (AS) tyres have the same height.....I know it sounds mad but different tyre manufacturers 55 AS are measured differently! Your hugger looks like an Ilmberger (same as mine) which will not accommodate a 55 AS Michelin PR 2or 3, or Dunlop roadsmart, for these you need to fit the Ilmberger HP2S hugger which looks identical but has the required clearance. Some other tyre makes may fit but it's trial and error.

I always fit 50 AS Michelins to my 12S.
( of course, you may already have the HP2S hugger fitted, but if your current AS is 50 then I would doubt that)

HTH

Steve

The 190/50-17 to 190/55-17 is not a smooth transition for best handling. The 190/50-17 Michelin is 620mm in diameter, while the 190/55-17 is 642mm in diameter. The 190/50 is a street profile as its flatter and promotes stability. The 190/55 is a performance profile as its much more V-shaped promoting a quick turn-in and more side grip.

To bolt on the 190/55 on a bike that came with a 190/50 can cause handling issues. The 22mm difference in diameter means you just raised the rear of the bike 11mm. Unless changes are made in other places you may not like the way it feels.

Mitch1100 wrote:The 190/50-17 to 190/55-17 is not a smooth transition for best handling. The 190/50-17 Michelin is 620mm in diameter, while the 190/55-17 is 642mm in diameter. The 190/50 is a street profile as its flatter and promotes stability. The 190/55 is a performance profile as its much more V-shaped promoting a quick turn-in and more side grip.

To bolt on the 190/55 on a bike that came with a 190/50 can cause handling issues. The 22mm difference in diameter means you just raised the rear of the bike 11mm. Unless changes are made in other places you may not like the way it feels.

Thanks for that info Mitch, that answers a lot of questions about the diameter of Michelin tyres, unfortunatly I'm stuck with a 180 55 as mine came with the 5.5" rim, I would have liked to try the 190 but used wheels are at a premium and relatively rare although it's possible a K wheel would fit albeit "backwards" not sure how it would cope though, or get a nice set of BST carbon but then I'd need a front and rear, lots of money but oh so trick,

popsky wrote:

Mitch1100 wrote:The 190/50-17 to 190/55-17 is not a smooth transition for best handling. The 190/50-17 Michelin is 620mm in diameter, while the 190/55-17 is 642mm in diameter. The 190/50 is a street profile as its flatter and promotes stability. The 190/55 is a performance profile as its much more V-shaped promoting a quick turn-in and more side grip.

To bolt on the 190/55 on a bike that came with a 190/50 can cause handling issues. The 22mm difference in diameter means you just raised the rear of the bike 11mm. Unless changes are made in other places you may not like the way it feels.

Thanks for that info Mitch, that answers a lot of questions about the diameter of Michelin tyres, unfortunatly I'm stuck with a 180 55 as mine came with the 5.5" rim, I would have liked to try the 190 but used wheels are at a premium and relatively rare although it's possible a K wheel would fit albeit "backwards" not sure how it would cope though, or get a nice set of BST carbon but then I'd need a front and rear, lots of money but oh so trick,

£920 sir for a new wheel

Mitch1100 wrote:The 190/50-17 to 190/55-17 is not a smooth transition for best handling. The 190/50-17 Michelin is 620mm in diameter, while the 190/55-17 is 642mm in diameter. The 190/50 is a street profile as its flatter and promotes stability. The 190/55 is a performance profile as its much more V-shaped promoting a quick turn-in and more side grip.

To bolt on the 190/55 on a bike that came with a 190/50 can cause handling issues. The 22mm difference in diameter means you just raised the rear of the bike 11mm. Unless changes are made in other places you may not like the way it feels.

I appreciate what you're saying here Mitch, but thats why I want to put one on. I've used 55 profiles for years on other machinery and like the way they handle.
Like you say the 55 quickens up steering and has better side grip. The trade off being at the cost of some stability, but considering the R1200S is one of the most stable motorcycles i've ridden on, I feel it can afford to lose a little stability.
My main concern was whether or not it would fit in the bike.
You'll have to excuse me but this BMW malarky is still very new to me.